Vermont Castings Radiance RUVSOD 3370 Mounting instructions

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Radiance
Vent Free Gas Heater
Model RUVSOD: 3370 thru 3379
20004555 8/03 Rev. 8
Homeowner’s Installation
and Operating Manual
INSTALLER: DO NOT DISCARD THIS MANUAL - LEAVE FOR HOMEOWNER
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This is an unvented gas-fired heater.
It uses air (Oxygen) from the room
in which it is installed. Provisions for
adequate combustion and
ventilation air must be provided.
Refer to Page 7.
INSTALLER / CONSUMER
SAFETY INFORMATION
WARNING: If the information in this
manual is not followed exactly, a fire
or explosion may result causing
property damage, personal injury or
loss of life.
Please read this manual before
installing and using appliance.
—Do not store or use gasoline or
other flammable vapors and
liquids in the vicinity of this or
any other appliance.
—WHAT TO DO IF YOU SMELL GAS
•Do not try to light any appli-
ance.
•Do not touch any electrical
switch; do not use any phone
in your building.
•Immediately call your gas
suppler from a neighbor’s
phone. Follow the gas
suppler’s instructions.
•If you cannot reach your gas
supplier, call the fire depart-
ment.
Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
410 Admiral Blvd. • Mississauga, Ontario, Canada L5T 2N6 • 905-670-7885
www.majesticproducts.com • www.vermontcastings.com
Vermont Castings, Majestic Products

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Vermont Castings Radiance Vent-Free Gas Heater
20004555
Installation and Operating Instructions .......................................................................................3
Stove Dimensions ..............................................................................................................4
Clearance Requirements ...................................................................................................5
Hearth Requirements .........................................................................................................5
Gas Specifications .............................................................................................................6
Gas Inlet and Manifold Pressures ......................................................................................6
High Elevations ..................................................................................................................6
Odor During Operation.......................................................................................................6
Vent Free Features ............................................................................................................7
Fresh Air Requirements .....................................................................................................7
Assembly Procedures
Tools Required/Hardware Bag Contents ...........................................................................9
Unpacking the Radiance ....................................................................................................9
Remove the Front, Screen and Logs .................................................................................9
Assemble Legs.................................................................................................................10
Install Optional Fan ..........................................................................................................10
Install ON/OFF Switch......................................................................................................12
Thermostat Connection (Optional) ...................................................................................12
Glass & Catalyst Installation ............................................................................................13
Connect the Gas Supply Line ..........................................................................................14
Install Log Set ..................................................................................................................14
Complete the Installation..................................................................................................15
Operation
Your First Fire ..................................................................................................................16
Pilot and Burner Inspection ..............................................................................................16
Flame & Temperature Adjustment ...................................................................................16
Flame Characteristics ......................................................................................................16
Lighting Instructions .........................................................................................................17
Troubleshooting ...............................................................................................................18
Maintenance
Firebox Cleaning and Inspection......................................................................................20
Cleaning Procedure .........................................................................................................20
Glass Replacement..........................................................................................................20
Care of Cast Iron..............................................................................................................20
Catalytic Combustor.........................................................................................................21
Replacement Parts.......................................................................................................................22
Optional Accessories ..................................................................................................................24
Warranty .......................................................................................................................................25
PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING APPLIANCE.
Thank you and congratulations on your purchase of a Vermont Castings stove.
IMPORTANT: Read all instructions and warnings carefully before starting installation. Failure to follow these
instructions may result in a possible fire hazard and will void the warranty.
Table Of Contents

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Vermont Castings Radiance Vent-Free Gas Heater
20004555
Installation & Operating Instructions
In order to ensure safe and effective installation, this unit
must be installed only by a qualified agency, individual, firm,
corporation or company that is experienced in the installa-
tion, repair and servicing of this type of appliance and is
familiar with the building codes and installation techniques
appropriate in your area. Contact your hearth products
dealer or local gas supplier for the name of a qualified
service person.
IMPORTANT: Read this owner's manual carefully and
completely before trying to assemble, operate, or
service this heater. Improper use of this heater can
cause serious injury or death from burns, fire, explo-
sion, electrical shock, and carbon monoxide poisoning.
Failure to follow instructions may result in property
damage, bodily injury or loss of life. This manual
contains important user information. Keep this manual
with the heater after installation is complete.
FOR SAFE INSTALLATION AND OPERATION,
PLEASE NOTE THE FOLLOWING:
1. Use only Natural Gas with RUVSODRN. Use only
Propane with RUVSODRP. Do not use any other
fuels.
2. Install only in accordance with the National Fuel
Gas Code, ANSIZ223.1/NFPA54-latest edition.
(Exception: Do not derate this appliance for
altitude. This appliance has been tested and listed
for use in altitudes up to 10,000 feet.)
3. Use only the installation instructions provided by
the manufacturer for this appliance. Installation
and repair should be done by a qualified service
person. The appliance should be inspected before
use and at least annually by a professional service
person. More frequent cleaning may be required
due to excessive lint from carpeting, bedding
material, etc. It is imperative that control compart-
ments, burners and circulating air passageways of
the appliance be kept clean.
4. WARNING: Any change to this heater or its con-
trols can be dangerous. DO NOT make modifica-
tions to any heater or associated parts.
5. DO NOT install this heater in a bedroom or bath-
room.
6. Due to high surface temperatures, DO NOT install
this heater
•in a recreational vehicle,
•where curtains, furniture, clothing or other
flammable objects are less than 36 inches from
the front, top or sides of the heater,
•in high traffic areas,
•in windy or drafty areas.
7. DO NOT place clothing or other flammable mate-
rial on or near the appliance.
8. DO NOT obstruct the top grille at all. Doing so will
cause high levels of carbon monoxide that will
lead to death.
9. This heater needs fresh, outside air ventilation to
operate properly. See Fresh Air Requirements on
Pages 7 and 8.
10. If heater shuts off, heater may not have enough
fresh air ventilation. Provide more fresh air. If
heater keeps shutting off, refer to Troubleshoot-
ing .
11. DO NOT operate this heater
•where flammable liquids or vapors are used
or stored
•under dusty conditions.
12. The heater becomes very hot when operating.
Alert children and adults to stay away from hot
surfaces to avoid burns or clothing ignition. The
heater will remain hot for a time after shutdown.
Allow surface to cool before touching.
13. Carefully supervise young children when they are
in the room with the heater.
14. Do not use the heater if any part has been ex-
posed to or under water. Immediately call a
qualified service technician to inspect the room
heater and to replace any part of the control
system and any gas control which has been
under water.
15. DO NOT operate the heater if any log is broken or
damaged.
16. Turn heater off and let cool before servicing. Only
a qualified service person should service and
repair heater.
17. DO NOT operate this appliance with the safety
screen removed. If the safety screen is removed
from the appliance for service or cleaning, it must
be replaced before operating the heater.
NOTE: If any of the original wire as supplied with the
appliance must be replaced, it must be replaced with a
wire of at least 105°F temperature rating.
Carbon Monoxide Poisoning: Early signs of carbon
monoxide poisoning resemble the flu, with headaches,
dizziness,ornausea.Ifyouhavethesesigns,theheater
maynotbeworkingproperly.Getfreshairatonce!Have
theheater serviced.Somepeople aremoreaffected by
carbon monoxide than others. These include pregnant
women, people with heart or lung disease or anemia,
those under the influence of alcohol, and those at high
altitudes.
CARBON MONOXIDE POISONING
MAY LEAD TO DEATH!
Proposition 65 Warning: Fuels used in gas,
woodburning or oil fired appliances, and the products of
combustion of such fuels, contain chemicals known to
the State of California to cause cancer, birth defects and
other reproductive harm.
California Health & Safety Code Sec. 25249.6

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Vermont Castings Radiance Vent-Free Gas Heater
20004555
31"
(787mm)
29³⁄₄"
(756mm)
RADIANCE
18³⁄₈"
(465mm)
11"
(279mm)
28¹⁄₄"
(717mm)
6¹⁄₂"
(165mm)
Drawing Not to Scale 4555
Supply Inlet
Fig. 1 Radiance Vent Free dimensions.
Radiance Vent Free Gas Heater Dimensions

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Vermont Castings Radiance Vent-Free Gas Heater
20004555
Clearance Requirements
Minimum Clearances to
Combustible Materials
Maintain clearance, (empty space), between combus-
tible materials and the heater as specified below.
Hearth Requirements
The Radiance Unvented heater must be installed on
rigid flooring. If the appliance is installed on any
combustible surface other than wood flooring, such as
carpet or tile, a metal or wood panel must be installed
to extend the full length and width of the unit. There
are no other hearth or floor protection requirements.
Fig. 3 Minimum mantel clearance.
A
B
C
D
E
V
W
X
YZ
Mantel Mantel from
Ref. Shelf Depth Ref. Stove Top
A7¹⁄₂” (190mm) V 16” (406mm)
B6” (152mm) W 14¹⁄₂” (368mm)
C4¹⁄₂” (114mm) X 13” (330mm)
D3” (75mm) Y 11¹⁄₂” (292mm)
E1¹⁄₂” (38mm) Z 10” (254mm)
ST694
Wall
BB
D
A
C
A: Maximum Alcove Depth.............. 24" (609mm)
B: To Side Wall................................... 4" (101mm)
C: To Rear Wall ................................. 4" (101mm)
D: To Ceiling................................... 60" (1524mm)
Alcove Clearances
ST103a
B
A
A: To Side Wall / Trim* ........................4" (101.6mm)
B: To Rear Wall...................................4" (101.6mm)
ST101
Fig. 2 Minimum wall clearances. • Do not install this heater in a bathroom or
bedroom.
• Installation of this heater must conform with
localcodesor,in the absenceoflocalcodes,with
the National Fuel Gas Code, ANSI Z223.1.
• This heater creates warm air currents. These
currents move heat to wall surfaces next to the
heater. Installing the heater next to vinyl or cloth
wall coverings or operating the heater where
impuritiesintheairsuchas tobacco smoke exist,
may discolor walls.
• Do not use a blower insert, heat exchanger
insert or other accessory not approved for use
with this heater.
WARNING

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Vermont Castings Radiance Vent-Free Gas Heater
20004555
Firebox weight / shipping 175 lbs.
The installation of your Vermont Castings stove must
conform with local codes, or in the absence of local
codes, with the National Fuel Gas Code ANSI
Z223.1 - latest edition. (EXCEPTION: Do not derate
this appliance for altitude up to 4,500 feet (1,370m).
Maintain the manifold pressure at 3.5” w.c. for
Natural Gas and 11.0” w.c. for LP Gas.
Radiance RUVSODRN/RP Vent-Free
Certified to:
ANSI Z21.11.2a-2001
Unvented Heaters
High Elevations
Input ratings are shown in BTU per hour and are
certified without deration from elevations up to
4,500 feet (1,370m) above sea level.
Nuisance outages may occur at altitudes above
4,500 feet (1,370m) if dirt, dust, lint and/or cob-
webs are allowed to accumulate on burner and/or
ODS pilot. Monthly inspection and cleaning is
recommended for altitudes above 4,500 feet
(1,370m)
For elevations above 4,500 feet (1,370m), installa-
tions must be in accordance with the current
ANSI Z223.1 and/or local codes having jurisdic-
tion.
WARNING: Improper installation, adjust-
ment, alteration, service or maintenance can
cause injury or property damage. Refer to
this manual for correct installation and
operational procedures. For assistance or
additional information consult a qualified
installer, service agency, or the gas supplier.
Odor During Operation
Neither natural gas nor propane gas give off an odor
when burned. The nature of a vent free combustion
system, however, is such that odors may occasion-
ally be produced during heater operation when
impurities exist in the immediate area. Cleaning
solutions, paint, solvents, cigarette smoke, candles,
adhesives, new carpet or textiles, etc., all can create
fumes. These fumes may mix with combustion air
and can create odor. Such odors will disappear over
time, however the condition can be alleviated by
opening a window or otherwise providing additional
ventilation to the area.
This appliance may be installed in an aftermar-
ket* manufactured (mobile) home, where not
prohibited by state or local codes.
This appliance is to be used only with the type of
gas specified on the rating plate which is at-
tached to the rear panel. This appliance is not
convertible for use with other gases.
*Aftermarket: Completion of sale, not for purpose of resale, from
the manufacturer.
Gas Specifications
Max. Min.
Input Input
Model Fuel Gas Control BTU/h BTU/h
RUVSODRN Nat. Millivolt 35,000 26,000
RUVSODRP Prop Millivolt 35,000 26,000
Inlet Minimum 5.5” w.c. 11” w.c.
Inlet Maximum 14” w.c. 14” w.c.
Manifold Pressure 3.5” w.c. 10” w.c. (MP)
11” w.c. (RP)
Gas Inlet and Manifold Pressures
Natural LP (Propane)

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Vermont Castings Radiance Vent-Free Gas Heater
20004555
Vent Free Features
The Radiance RUVSOD, Model Nos. 3370 thru 3379,
is an unvented gas heating appliance tested and listed
to the ANSI standard Z21.11.2-2000. This appliance is
specifically configured to burn either Natural Gas or
Propane fuel, as indicated on the metal rating plate
attached to the rear shroud. The Radiance RUVSOD is
not fuel convertible.
The RUVSOD is shipped fully assembled with the
exception of the log set. The log set is assembled
during installation.
The RUVSOD is equipped with a Honeywell control
valve that allows thermostatic control, on/off switch or a
remote switch (not supplied).
The RUVSOD model incorporates variable regulators
that allow you to adjust burner heat output between
HIGH, (35,000 BTU), and LOW, (26,000 BTU). See the
Operation Section for details.
A push button Piezo ignitor is used to light the standing
pilot. The pilot incorporates an Oxygen Depletion
System (ODS/pilot) which will shut off gas flow to the
burner in the event that sufficient fresh air becomes
unavailable for continued safe operation.
Thisheatermusthavefreshairforproperoperation.
Ifnot, poor fuel combustion could result. Read the
followinginstructionstoinsureproperfreshairfor
this and other fuel-burning appliances in your
home.
Fresh Air Requirements for Combustion
and Ventilation
WARNING
Modern construction standards have resulted in homes
that are highly energy-efficient and that allow little heat
loss. Your home needs to breathe, however, and all
fuel-burning appliances within it require fresh air in
order to function properly and safely. Exhaust fans,
clothes dryers, fireplaces, and other fuel burning
appliances all use the air inside the building. If the
available fresh air is insufficient to meet the demands
of these appliances, problems can result.
The Radiance Unvented heater has specific fresh air
requirements. You must determine that these fresh
air requirements will be met within the space where
the appliance will be installed. The following informa-
tion will help you insure that adequate fresh air is
available for the heater to function properly.
Provide For Adequate Ventilation
Any space within a home can be classified in the
following categories:
1) Unusually Tight Construction
2) Confined Space
3) Unconfined Space
First, determine which classification defines the
intended space.
Unusually Tight Construction
You must provide additional fresh air if the space falls
into this classification. Unusually Tight Construction is
defined as construction wherein:
a. walls and ceilings exposed to the outside
atmosphere have a continuous water vapor retarder
with a rating of one perm or less with openings
gasketed or sealed and
b. weather stripping has been added on openable
windows and doors and
c. caulking or sealants are applied to areas such as
joints around window and door frames, between sole
plates and floors, between wall-ceiling joints, between
wall panels, at penetrations for plumbing, electrical,
and gas lines, and at other openings.
If your home meets all of the three criteria above, you
must provide supplemental fresh air for the appliance
from outside the home as detailed on page 7, B.
If your home does not meet the above criteria, follow
the procedure below.
Determine if You Have a Confined or
Unconfined Space
Use the following formula to determine if you have a
confined or unconfined space.
Space is defined as the room in which you will install
the heater plus any adjoining rooms with doorless
passageways or ventilation grilles between the rooms.
The National Fuel Gas Code defines a confined space
as a space whose volume is less than 50 cubic feet per
1,000 BTU per hour, (4.8 m3 per kw), of the aggregate
input rating of all appliances installed in that space and
an unconfined space as a space whose volume is not
less than 50 cubic feet per 1,000 BTU per hour, (4.8
m3 per kw), of the aggregate input rating of all appli-
ances installed in that space. Rooms communicating
directly with the space in which the appliances are
installed, through openings not furnished with doors,
are considered a part of the unconfined space.
1. Determine the volume of space, (length x width x
height) . Include adjoining rooms connected by doorless
passageways or ventilating grilles.
Example:
A room that is 18' x 12' x 8' has a volume of 1728 cubic
feet, ( length x width x height). An adjoining open
kitchen that is 10' x 12' x 8' has a volume of 960 cubic
feet. An adjoining open dining room is 12' x 12' x 8'

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Vermont Castings Radiance Vent-Free Gas Heater
20004555
WARNING
This heater shall not be installed in a confined
space unless provisions are made for adequate
combustion and ventilation air.
WARNING
If the area in which the heater may be operated is
smaller than that defined as an unconfined space,
provide adequate combustion and ventilation air by
one of the methods described in the National Fuel
Gas Code, ANSI Z223.1, 1992 Section 5.3.
with a volume of 1152 cubic feet. The total space
volume is 3840 cubic feet. (1728 + 960 + 1152).
2. Divide the volume of space by 50 cubic feet. The
result is the maximum BTU/Hr that the space can
support.
Example:
3840 divided by 50 = 76.8 or 76,800 BTU/Hr.
3. Add the BTU/Hr ratings of all fuel-burning appli-
ances installed in the same space, including the
following:
Gas Water Heater Gas Furnace
Gas Fireplace Logs Unvented Gas Heater
Vented Gas Heater* Other Gas Appliances*
* Do not include Direct Vent appliances as these
utilize outside air for combustion and vent to the
outdoors.
Example:
Gas Range 55,000 BTU/Hr
Unvented Heater +33,000 BTU/Hr
Total 88,000 BTU/Hr
4. Compare the maximum BTU/Hr rating the space can
support with the total BTU/Hr used by the appliances.
Example:
76,800 BTU/Hr - max. the space can support
88,000 BTU/Hr - total used by appliances
In this example, the maximum BTU/Hr that the space
can support is less than the total used by the appli-
ances, the space is considered to be Confined space .
Additional air must be provided to meet the require-
ments of the Unvented heater.
A confined space may be ventilated in two ways:
A) Open up or provide at least two ventilating grilles to
an adjoining unconfined space. Use any of the options
illustrated in Figure 4.
Each of the two grilles must provide an opening of at
least 50 square inches, with all opening dimensions
being at least 3". One grille must be located within 12"
of the ceiling; the other within 12" of the floor. (If the
total exceeds 100,000 BTU/Hr, additional grilles will be
required.)
B) Vent the room directly to the outdoors. (Provide one
square inch of opening for each 4,000 BTU/hr.
If the total BTU/Hr used by the appliances is less than
the maximum BTU/Hr the space is able to support, the
room meets the Unconfined space
criteria and no
further ventilation is required.
For further information on ventilation guidelines and
sizing specifications follow the National Fuel Gas Code
NFPA 54/ANSI Z223.1 Section 5.3.
12”
12”
Option 3 -
Vents to
Adjoining
Room
Option 1
Vents to
Adjoining
Room
Option 2 -
Remove
Door to
Adjoining
Rooms
VO370-2
Fig. 4 Vent options to provide additional air.

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Vermont Castings Radiance Vent-Free Gas Heater
20004555
Read these instructions thoroughly before starting
the assembly. Follow procedures in the order
given. Inspect the stove for damage before starting
the assembly. Do not install this stove if any
damage is evident. Contact your dealer immedi-
ately.
The Radiance is shipped on its back, mounted to a
wooden pallet. It is fully assembled, although packing
materials must be removed from the firebox and the
Log Set installed. Connection to the gas supply must
be performed only by a qualified gas technician who
should also verify that adequate ventilation is available
to support proper burner function.
Installation of optional accessories, such as the Fan,
Glass/Catalyst, or thermostat, is most easily accom-
plished before the gas supply connection is made.
Tools Required
•Stub-handled Phillips screwdriver • work gloves
•Standard Phillips screwdriver • knife
•Standard flat-blade screwdriver
•Tape measure • needlenose pliers
Hardware Bag Contents
•Porcelain Handle (Front Door)
•Control Door Handle & Screw
•(2) Bags of Lava Rock
•(6) 10 x 1/2” Screws
•Bracket, Wire Switch
•Registration Card & Manual
•(4) CS, Hex Hd 3/8-16 x 1 Gr 2-Z
•(4) Washer, Fl 3/8-Z
Unpacking the Radiance
Caution: Enamelled castings can chip easily!
Handle enamelled castings carefully to avoid
damage.
1. Cut the shipping straps.
2. Unpack the top grate and screen from the carton,
and set them aside.
Remove the Front, Screen and Logs
Remove the Front panel, the Screen panel, the Log
Set and hardware bag from the firebox before position-
ing the stove.
1. Remove the accessory package from the top of the
stove.
The manual, hardware package, and lava
rocks are packed on top of the firebox. Set these
aside.
2. Remove the Front Plate. Grasp one side and the
bottom, and lift the front plate as a unit (the control
door attaches to the stove front). Swing the bottom
edge out and away from the stove body, (Fig. 5)
3. Remove the screen frame. (Fig. 6)
4. Remove the Log Set. Lift out the package and any
packing material from the burner tray and firebox.
Unpack the log set and inspect each piece for
damage. DO NOT INSTALL DAMAGED LOGS. Set
the logs aside out of the way.
Assembly Procedures
Fig. 5 Remove the front plate. ST139
Fig. 6 Lift screen from firebox. ST187a
Screen Hooks

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Vermont Castings Radiance Vent-Free Gas Heater
20004555
Install Optional Fan
It is easiest to install the optional fan kit #2767/FK26,
before the stove is moved to its final location or con-
nected to the gas line.
The fan consists of a blower assembly and a rheostat
switch that are connected by a wire harness. The
blower attaches to a bracket at the bottom of the rear
shroud. The rheostat installs at the bottom of the stove
on the left of the valve.
The fan kit includes a ‘snapstat’, a temperature-sensing
switch which will be mounted to the blower duct just
below the top plate of the stove. The snapstat automati-
cally turns the fan on or off at approximately 109°F.
The rheostat provides a range of fan speed settings
from OFF (which overrides the snapstat function) to
high.
Kit Contents
• Fan assembly with rheostat and snapstat
• wire tie • control knob • retaining collar
CAUTION: Sheet metal edges can be sharp. Be sure
to wear protective gloves.
1. Loosen the four phillips head screws which secure
the rear shroud to the stove sides. (Fig. 9)
2. Carefully pull the shroud assembly away from the
rear of the stove.
3. With the rear shroud assembly in the upright posi-
tion, set the bottom of the shroud on a padded surface
to prevent scratching the surface. Unfasten the four
phillips head screws which attach the outer shroud to
the inner duct assembly.
Assemble the Legs
1. Slide stove to the rear of the pallet just far enough to
access rear leg holes. Make sure the stove does not
tip over backwards. (Fig. 7)
ST720
Fig. 7 Slide stove back just far enough to access rear leg
holes.
2. Attach the rear legs using 3/8” hex head bolts and
flat washer supplied. Tighten with a 9/16” wrench or
socket.
3. Carefully tip the stove onto its rear legs. Adjust the
pallet to allow access to one of the front leg holes.
Be sure to leave the pallet under the stove to prevent
the stove from falling fully forward. (Fig. 8)
CAUTION: To prevent valve tubing from being
crushed or damaged, make sure to rest valve on
wooden pallet.
Washer
Hex Head Bolt
ST721
Fig. 8 Carefully tip stove onto back legs. Leave pallet under
stove to keep stove from falling fully forward.
4. Have your assistant attach one leg using the hard-
ware described.
5. Move the pallet to allow access to the other front leg
hole. Attach remaining leg.
6. Remove pallet and allow stove to gently rest on all
four legs.
7. Adjust leg levelers to compensate for irregularities in
the hearth.
ST189
Fig. 9 Loosen four phillips screws holding rear shroud
assembly and remove. Remove four phillips screws holding
rear shroud to inner duct assembly. Remove rear shroud.
Rear Shroud
Assembly

11
Vermont Castings Radiance Vent-Free Gas Heater
20004555
4. Attach the fan assembly to the fan bracket provided
in the log box. Use #10 sheet metal screws provided
with fan kit. Do not remove finger guard screws.(Fig.
10)
5. Connect snapstat leads. Disconnect the snapstat
module from the leads inside the snapstat bracket. (Fig.
11) Bend open the snapstat bracket. Use needlenose
pliers to remove the black plastic grommet from the
bracket. Discard the bracket. Insert the grommet and
wires into the large hole at the bottom right corner of
the inner shroud. Feed the snapstat wire leads through
the grommet into the stove interior. Connect the two
wires to the two snapstat extension leads attached to
the inner shroud.
Snapstat Bracket
Snapstat Module
Pinch
Grommet to
Remove
ST670
Fig. 11 Remove the snapstat and grommet from the bracket
and insert the grommet into the inner shroud.
6. Position the fan assembly so the ducts slide be-
tween the inner and outer shroud. The inner shroud
should engage with the two slots in the ends of the
bracket so that bracket and shroud are interlocked.
(Fig. 12) Secure the bracket with the four sheet metal
screws provided in the finish bag.
7. Route the rheostat wire assembly to the right
between the inner and outer shroud. Run the wire
through the slots at the bottom right corner of the inner
shroud.
8. Refasten the outer shroud to the inner duct assem-
bly.
{Inner Shroud}
Fig. 12 Position the fan to engage the inner shroud with the
fan bracket slots and secure with sheet metal screws.
Outer
Shroud Slot
Slot
ST194
9. Install the snapstat by loosening the front screw on
the inner side of the duct (Fig. 13) slide the snapstat
under the head of the screw and tighten. Connect the
leads to the snapstat. Make sure the snapstat assembly
is mounted straight front to back.
10. Slide shroud assembly over the sides and fasten
the four screws loosened earlier.
11. Plug the power cord into a standard grounded 110
volt household outlet. If the fan control knob is not
turned to the OFF position, the fan will turn on when the
temperature at the snapstat reaches approximately
109°F.
Fig. 13 Install the snapstat and connect the extension wire
terminals. View is with top removed, however, access is
available through the rear when installing fan before gas line
connection.
Snapstat
Left Air Duct
ST671
Fig. 10 Attach the fan assembly to the fan bracket.
Fan
Bracket
Finger Guard
Snapstat
Wire Rheostat
Wire
ST669

12
Vermont Castings Radiance Vent-Free Gas Heater
20004555
MOTOR
SNAPSTAT
ON/OFF
RHEOSTAT
WHT
WHT
BLK
BLK
BLK
GRN
BLK
POWER
Fig. 15 #2767 / FK26 Fan Wiring Diagram
Disconnect power
before servicing.
ST196
The optional fan kit is equipped with a three-
prong(grounding)plugforyourprotectionagainst
shockhazardandshouldbepluggeddirectlyinto
a properly grounded three-prong outlet. Do not
cut or remove the grounding prong from this
plug.
WARNING
NOTE: If you are installing the fan kit after the stove is
in its final location, follow same steps mentioned
previously with the exception of disengaging only the
right side of the outer shroud.
Rheostat
Retaining Nut
Control Knob ST347a
Fig. 14 Attach rheostat to control panel. Valve may look
different.
Install ON/OFF Switch
The switch assembly parts are found in the parts bag.
1. Attach switch assembly to left rear side of stove
shroud using two screws and existing holes in
shroud. (Fig. 16)
2. Run wires down back of stove, under bottom of rear
shroud to valve.
3. Attach wires to valve terminals. (Fig. 17)
TP TH
TPTH
ST228
Fig. 17 Attach switch wires to valve.
Existing
Holes
Switch
Assembly
Screws ST315
Fig. 16 Attach switch assembly to rear shroud.
Thermostat Wire / Gauge Maximum Run
18 40 feet
20 25 feet
22 16 feet
Thermostat Connection (Optional)
Use only a thermostat rated for 500 - 750 millivolts.
Do not use low voltage (24V) thermostats.
Check the table below for the appropriate gauge
thermostat wire to use for the length of lead required in
your installation.
1. Install the wall thermostat in the desired location and
run the wires to the stove location. Terminate these
leads with 1/4” female connectors.
2. Connect the thermostat wires to the valve. (Fig. 17)

13
Vermont Castings Radiance Vent-Free Gas Heater
20004555
Glass & Catalyst Installation
CAUTION: Air shutter must be removed
when installing glass and catalyst for
proper operation.
1. Remove left and right log bracket assembly by
unfastening the two screws which hold the burner in
place. Loosen the screw on the rear log bracket and
remove the bracket.
2. Hold the burner at the right hand side and lift to clear
the right burner leg. Then pull to the right to clear the
injectors on the left hand side.
3. Turn burner upside down and remove air shutter.
Discard air shutter. (Fig. 18)
OFF ON
Thermopile
Black
Black
TP/TH
TP
TH
Thermostat
(Optional)
Thermopile
Black
Black
TP/TH
TP
TH
On/Off Switch Wiring
Optional Thermostat Wiring
ST124b
ST124c
90¡
Left Burner Leg
Injector Orifices
ST353a
Fig. 19 Be sure injector orifices remain at 90°to the base.
4. Replace burner. Slide the burner in at an angle with
left side lower than the right side. Slide the left side
onto the injectors, making sure the burner leg remains
at a 90°angle to the base. (Fig. 19) Lower the right
hand side down in to place. Make sure the burner is as
far left as possible and the injector shoulders are inside
the burner.
5. Replace left and right log bracket assembly, tighten
rear log bracket, and replace logs.
6. Latches provided in catalyst kit must be installed on
top of firebox. Use two phillips screws to secure in
place. (Fig. 20)
7. Slide catalyst between top plate and firebox. Allow
catalyst to “fall” into hole on top of firebox. Secure with
two screws as shown in Figure 21.
Phillips
Screws
Phillips Screws
ST671
Fig. 20 Attach glass latches.
Catalyst Location
Air Shutter (Remove and Discard)
Bottom of Burner Pan
ST667
Fig. 18 Remove air shutter and discard.
ST201
Fig. 21 Install catalytic combustor.

14
Vermont Castings Radiance Vent-Free Gas Heater
20004555
Install Log Set
1. Remove the logs from their packaging, and inspect
each piece for damage. DO NOT INSTALL DAM-
AGED LOGS.
2. Install the rear left log by placing it on the sheet
metal shelf at the back of the firebox. (Fig. 23) The
log should touch the back wall of the firebox. Slide
the log to the left until the left side lines up with the
left bracket. (Fig. 23) When the log is in place the
left front corner of the log should rest on the decora-
tive grate.
3. Install the rear right log by placing it on the sheet
metal shelf at the back toward the right. Make sure
the right side of the log lines up with the right
bracket. (Fig. 23) NOTE: When the right and left
rear logs are in place, they should touch the back of
the firebox and each other.
4. Install the right log by engaging hole on the bottom
with pin on the right rear log. (Fig. 23) Set the
bottom of the log on the bracket and bring forward
to come in contact with decorative grate on right.
This appliance should only be
connected by a qualified gas techni-
cian. Test to confirm manifold
pressures as specified below.
The Radiance Heater and its individual shutoff
valve must be disconnected from the gas supply
piping during any pressure testing of that system
at test pressures in excess of 1/2 psig (3.5 kPa).
The Radiance Heater must be isolated from the
gas supply piping system by closing its indi-
vidual manual shutoff valve during any pressure
testing of the gas supply piping system at test
pressure equal to or less than 1/2 psig.
There must be a gas shutoff between the stove
and the supply.
In order to connect Natural Gas, use a fitting with
1/2” NPT on the valve side and 1/2” natural gas
supply line with an input of 35,000 BTUs at a
manifold pressure of 3.5” between minimum inlet
supply of 5.5” w.c. and maximum of 14.0” w.c.
In order to connect Propane, use a fitting with 1/2”
NPT on the valve side and 1/2” propane gas supply
line with an input of 35,000 BTUs at a manifold
pressure of 11.0” between a minimum inlet supply
of 11.0” w.c. and maximum of 14.0” w.c.
CAUTION
Connect the Gas Supply Line
Check the Rating Plate attached by a steel cable to the
firebox, to confirm that you have the appropriate firebox
for the type of fuel to be used.
This appliance should only be connected by a
qualified gas technician. Test to confirm manifold
pressures as specified below.
The Radiance Heater and its individual shutoff
valve must be disconnected from the gas supply
piping during any pressure testing of that system at
test pressures in excess of 1/2 psig (3.5 kPa).
The Radiance Heater must be isolated from the gas
supply piping system by closing its individual
manual shutoff valve during any pressure testing of
the gas supply piping system at test pressure equal
to or less than 1/2 psig.
There must be a gas shutoff between the stove and
the supply.
In order to connect Natural Gas, use a fitting with
3/8” NPT nipple on the valve side and 1/2” natural
gas supply line with an input of 35,000 BTUs at a
manifold pressure of 3.5” and minimum inlet supply
for adjustment of 5.5” w.c.
In order to connect Propane, use a fitting with 3/8”
NPT nipple on the valve side and 1/2” propane gas
supply line with an input of 35,000 BTUs at a mani-
fold pressure of 11.0” and minimum inlet supply for
adjustment of 11.0” w.c.
Gas connection should be made in accordance with
current National Fuel Gas Code, ANSI Z223.1. Since
some municipalities have additional local codes, be
sure to consult you local authority.
Connect the gas supply and test for leaks. Use a 50/50
solution of liquid soap and water to test for leaks at gas
fittings and joints. NEVER test with an open flame.
Light the pilot according to the directions on page 16,
before going to the next step.
ST672
Fig. 22 Set glass frame in place and secure latches.
8. Install glass frame assembly by resting the bottom
edge of the frame on support brackets below the front
opening of the firebox. Swing the top edge of the
assembly toward the firebox, and center it. Fasten by
closing the latches over the top left and right edges of
the frame. (Fig. 22)

15
Vermont Castings Radiance Vent-Free Gas Heater
20004555
5. Loosely sprinkle the lava rocks directly on top of the
burner just behind decorative grate. (Fig. 25) Use
the lava rock to cover brackets on the burner. Do
not place lava rocks toward back of burner. The lava
rock is shipped inside the bag assembly.
Left Rear Log Right Rear
Log
Lava rock may
be placed in this
area
Decorative Grate
Top View
Fig. 25 Lava rock placement.
LG160
LG171
Fig. 23 Install the left and right rear logs and the right log.
Decorative
Grate
Right Log
Right Rear Log
Left Rear Log
Left
Bracket Right Bracket
LG172
Fig. 24 Completed log installation.
Lava Rock
Log rests on
decorative grate
Complete the Installation
1. Replace the screen frame by sliding the hooks over
the top front edge of the firebox and resting the
bottom on the support brackets. If the catalyst has
been installed, place the glass front on the stove by
resting the bottom edge of the frame on support
brackets below the front opening of the firebox.
Swing the top edge of the assembly toward the
firebox, and center it. Fasten it by closing the latches
over the top left and right edges of the frame.
2. Replace the stove front by grasping it by the left and
right edges. Lift it so that tabs on the back side of the
top corners engage notches at the top forward
corners of the stove sides. Then gently swing the
bottom of the front panel to a vertical position, and
lower it till prongs on its bottom left and right corners
engage with notches cast into the tops of the forward
legs. (Fig. 26) Test that the front is installed securely
by grasping two of panel’s vertical bars, and pulling
the panel toward yourself. When the panel is in
place properly you should not be able to pull the
bottom of the front toward yourself without also lifting it.
3. Attach the wooden handle to the control door using
the #8-32 x 2” screw from the parts bag. (Fig. 27)
4. Set the screen and the cast-iron grate into the
recess in the stove top.
This completes the installation and assembly of the
Radiance RUVSOD.
Fig. 26 Replace the front panel.
ST139a
Fig. 27 Attach the handle to the control door.
ST197

16
Vermont Castings Radiance Vent-Free Gas Heater
20004555
Operation
The Radiance is shipped with the operable door front
plate. The stove may be operated with the doors either
open or closed. To open the front doors, insert the
handle provided into the door latch stub and turn it to
the right and up. (Fig. 28) When not in use, the handle
may be stored in the handle holder on the right side of
the rear shroud. (Fig. 29)
Your First Fire
Read these instructions carefully and familiarize
yourself with the burner controls shown on Page 17.
Locate the pilot assembly, Figure 30. Follow the
lighting instructions on Page 16 exactly.
During the first fire, it is not unusual to smell some odor
associated with new logs, paint and metal being
heated. Odors should dissipate within the first eight to
ten hours, however, you can open a window to provide
fresh air to alleviate the condition.
Pilot and Burner Inspection
Each time you light your heater check that the pilot
flame and burner flame patterns are as shown in Figure
32 and Figure 33. If flame patterns are incorrect, turn
the heater off. Contact your dealer or a qualified gas
technician for assistance. Do not operate the heater
until the pilot flame is correct.
Flame & Temperature Adjustment
For units equipped with HI/LO valves, the flame adjust-
ment is accomplished by rotating the HI/LO adjustment
knob located near the center of the gas valve. (Fig. 31)
Fig. 28 To open the front doors, turn handle counterclockwise.
Clockwise
to Close
Counterclockwise
to Open
ST621
RADIANCE
Handle
Holder
ST656
Fig. 29 When not in use, store handle in the handle holder.
Natural
Pilot
LP Pilot ST673
Fig. 30 Pilot assembly location.
LO
HI
Turn
counterclockwise
to decrease
flame height
Turn clockwise
to increase
flame height
Fig. 31 Flame adjustment knob for Honeywell valve.
Flame Characteristics
It is important to periodically perform a visual check of
the pilot and burner flames. Compare them to the
illustration below. (Fig. 32, 33) If the flame patterns
appear abnormal, contact a qualified service provider
for service and adjustment.
Red Glow
ST198
Fig. 32 Correct pilot flame appearance. OP pilot.
LG173
Fig. 33 Correct burner flame pattern.

17
Vermont Castings Radiance Vent-Free Gas Heater
20004555
3. Open control access panel.
4. Push in gas control knob slightly and turn
clockwise to "OFF". Do not force.
5. Close control access panel.
1. STOP! Read the safety information above.
2. Turn off all electrical power to the fireplace.
3. For MN/MP/TN/TP appliances ONLY, go on to
Step 4. For RN/RP appliances turn the On/Off
switch to “OFF” position or set thermostat to
lowest level.
4. Open control access panel.
5. Push in gas control knob slightly and turn
clockwise to "OFF".
10. Push the control knob all the way in and hold.
Immediately light the pilot by repeatedly depress-
ing the piezo spark ignitor until a flame appears.
Continue to hold the control knob in for about one
(1) minute after the pilot is lit. Release knob and it
will pop back up. Pilot should remain lit. If it goes
out, repeat steps 5 through 8.
FOR YOUR SAFETY READ BEFORE LIGHTING
instructions.
•If you cannot reach your gas supplier, call the
Fire Department
C. Use only your hand to push in or turn the gas
control knob. Never use tools. If the knob will not
push in or turn by hand, do not try to repair it, call a
qualified service technician. Applying force or any
attempted repair may result in a fire or explosion.
D. Do not use this fireplace if any part has been under
water. Immediately call a qualified service techni-
cian to inspect the heater and to replace any part of
the control system and any gas control which has
been under water.
A. This heater has a pilot which must be lit manu-
ally. When lighting the pilot follow these instruc-
tions exactly.
B. BEFORE LIGHTING smell all around the heater
area for gas. Be sure to smell next to the floor
because some gas is heavier than air and will
settle on the floor.
WHAT TO DO IF YOU SMELL GAS
•Do not try to light any fireplace
•Do not touch any electric switch
• Do not use any phone in your building
•Immediately call your gas supplier from a
neighbor's phone. Follow the gas supplier's
To Turn Off Gas To Heater
Lighting And Operating Instructions
1. Turn the On/Off switch to Off position or set the
thermostat to lowest setting.
2. Turn off all electric power to the fireplace if
service is to be performed.
Lighting Instructions
6. Wait five (5) minutes to clear out any gas. Then
smell for gas, including near the floor. If you
smell gas, STOP! Follow "B" in the safety
information above. If you do not smell gas, go
to the next step.
7. Remove glass door before lighting pilot. (See
Glass Frame Removal section).
8. Visibly locate pilot by the main burner.
9. Turn knob on gas control counterclockwise
to "PILOT".
•If knob does not pop up when released, stop
and immediately call your service technician or
gas supplier.
• If after several tries, the pilot will not stay lit,
turn the gas control knob to "OFF" and call your
service technician or gas supplier.
11. Replace glass door.
12. Turn gas control knob to “ON” position.
13. For RN/RP appliances turn the On/Off switch to
“ON” position or set thermostat to desired setting.
14. Turn on all electrical power to the fireplace.
WARNING:If you do not follow these instructions exactly, a fire or explosion
may result causing property damage, personal injury or loss of life.
PILOT
ON
OFF
ON
P
I
L
O
T
O
F
F
O
F
F
5
4
3
2
1
O
F
F
P
i
l
o
t
Euro SIT SIT NOVA Honeywell
3/8" - 1/2"

18
Vermont Castings Radiance Vent-Free Gas Heater
20004555
Troubleshooting
Follow these procedures in the order presented.
WARNING
TURN OFF HEATER AND ALLOW TO COOL
COMPLETELY BEFORE SERVICING.
CONDITION POSSIBLE CAUSE SOLUTION
No spark at pilot when Ignitor is
operated. 1. Ignition Electrode is disconnected from ignition wire, broken or
incorrectly positioned.
2. Ignitor wire is broken.
3. Bad Piezo Ignitor.
1. Inspect and re-connect, replace
or repair as necessary.
2. Replace wire.
3. Replace Piezo Ignitor.
The Ignitor Electrode sparks,
but Pilot does not light. 1. Gas supply is turned off or supply
line shut-off valve is closed.
2. Control Knob is not in PILOT
position.
3. Control Knob not pressed in while
in PILOT position.
4. Air present in gas lines.
5. Inlet supply pressure is not within
correct settings.
6. Other conditions that should be
identified only by a qualified gas
technician.
1. Turn on gas supply or open
supply line shut-off valve.
2. Turn Control Knob to PILOT.
3. Press Control Knob in while in
the PILOT position.
4. Continue holding in Control Knob
and repeat ignition procedure
until air is bled from the lines.
5. Call local gas supplier. Adjust
inlet supply pressure to specifica-
tion: NG; 5.5” w.c.-14.0”w.c. LP;
11.0” w.c.-14.0”w.c.
6. Call qualified gas technician.
PILOT
ON
OFF
PILOT
ADJ
L
O
H
I
TPTH TH
TP
Piezo Ignitor
Regulator
Pilot / Main Control
HV104
Fig. 34 Honeywell valve assembly.

19
Vermont Castings Radiance Vent-Free Gas Heater
20004555
Troubleshooting cont’d.
CONDITION POSSIBLE CAUSE SOLUTION
Pilot lights but flame goes out
when Control Knob is released. 1. Control Knob not fully depressed
or held in long enough.
2. Gas supply line shut-off valve is
not fully open.
3. Thermocouple connection is
loose at the Control Valve.
4. Pilot flame does not touch the
Thermocouple.
This can be caused by:
A) Incorrect gas pressure, and/or
B) other conditions that should
be identified only by a qualified
service technician.
5. Thermocouple is damaged.
6. Control Valve is damaged.
1. Depress Control Knob fully and
hold in for a full 30 seconds.
2. Fully open gas supply line shut-
off valve.
3. Inspect and tighten securely.
4. A) Call local gas supplier. Adjust
inlet supply pressure to specifica-
tion: NG; 5.5” w.c.-14.0”w.c. LP;
11.0” w.c.-14.0”w.c.
B)Call local gas service techni-
cian.
5. Call local gas service technician.
6. Call local gas service technician.
Correct LP Pilot Flame. Correct NG Pilot Flame.
Pilot lights but Main Burner does
not. 1. Gas supply line shut-off valve is
not fully open.
2. Foreign material is blocking
Burner ports.
3. Main Burner orifice is clogged.
4. Thermostat or remote switch not
activated on JUVS.
5. Bad Thermopile.
1. Fully open gas supply line shut-
off valve.
2. Insptect and clear debris away
from Burner ports.
3. Call local gas service technician.
4. Set thermostat to higher tem-
perature or check remote switch.
5. Call local gas service technician.
Main Burner shuts off and Pilot
flame goes out while in operation. 1. Insufficient fresh air.
2. Incorrect inlet supply pressure.
1. Determine that adequate ventila-
tion exists to provide sufficient
fresh air. Open a window or
provide additional ventilation.
(See Fresh Air Requirements,
Pages 7-8)
2. Call local gas supplier. Adjust
inlet supply pressure to specifica-
tion: NG; 5.5” w.c.-14.0”w.c. LP;
11.0” w.c.-14.0”w.c.
Pilot flame is weak - does not touch
Thermocouple.
Pilot flame is lifting.
Thermopile
Thermo-
couple
ST121a

20
Vermont Castings Radiance Vent-Free Gas Heater
20004555
The following procedures will help ensure that your
heater continues to perform safely and efficiently.
Firebox Cleaning and Inspection
Cleanliness is critical to correct operation of the
heater. The log set, burner, valve controls and air
circulation areas must all be kept free of dust and
unobstructed by debris. Inspect these areas before
each use and clean whenever accumulation is
evident. Follow the simple procedure outlined below.
Frequent cleaning may be necessary in living environ-
ments subject to excessive carpet lint or pet hair. For
example, if you live with a dog that sheds continuously,
you will need to inspect the burner area frequently and
clean it as often as the accumulation requires. In
extreme conditions, it may be necessary to clean
the burner and log set monthly or bi-weekly.
This appliance should be inspected and thoroughly
cleaned annually by a qualified gas technician.
Cleaning Procedure
1. Turn the burner OFF and let the heater cool com-
pletely before cleaning.
2. Lift the Front plate up and then swing the bottom out
to disengage it from the heater shell. (Page 9, Fig. 5)
3. Remove the screen by lifting up and away from the
unit. Or, if so equipped, remove the glass panel by
releasing the two upper retainer latches. Lift the
panel up and off of the firebox frame. (Fig. 35)
4. Carefully inspect the log set for damage. Contact
your local dealer if any damage is evident. DO NOT
OPERATE THE HEATER WITH A DAMAGED OR
LOOSE LOG SET.
Use a soft-bristled brush vacuum cleaner attach-
ment to remove dust or debris from the log set, pilot
and burner. Use care as the log set is fragile.
5. Inspect the catalytic combustor at the top of the
firebox. Replace the combustor if any damage or
deterioration is evident.
6. Replace the screen or glass panel and the front
plate. DO NOT OPERATE THE HEATER WITH THE
SCREEN / GLASS PANEL OR FRONT PLATE
REMOVED.
Glass Replacement
If so equipped, do not operate this appliance with the
glass panel cracked, broken, or removed. Replace
damaged glass only with Vermont Castings ceramic
glass panel Part No. 1601290. Follow the Cleaning
Procedure instructions regarding parts removal.
Care of Cast Iron
An occasional dusting with a dry rag will help keep the
painted surfaces looking new. Use high-temperature
stove paints, available through your local dealer, to
touch-up areas as needed. Clean areas to be painted
with a wire brush and be sure to cover the log set,
burner and valve assembly. Apply the paint sparingly;
two light coats of paint will give better results than a
single heavy coat.
Porcelain enamel surfaces should be cleaned with a
soft, damp cloth. Do not use abrasive cleaning agents.
If necessary, use only a cleaning agent formulated
specifically for use on porcelain enamel surfaces.
Maintenance
Fig. 35 Remove the screen or glass panel.
Screen Hooks
Glass Latch
ST675
WARNING
Turn the burner Pilot OFF before applying
paint. NEVER paint pilot or around pilot area.
Dust and debris accumulation can result in
poor performance. Inspect the Valve
compartment, burner parts and log set
frequently and Clean these parts monthly or as
often as accumulation warrants.
WARNING