Enviro 828 DV.FS. User manual

SHERWOOD INDUSTRIES IS AN ENVIRONMENTALLY RESPONSIBLE COMPANY
THIS MANUAL IS PRINTED ON RECYCLED PAPER
828
By SHERWOOD INDUSTRIES LTD.
Direct Vent
OWNERS MANUAL
Installation And Operating Instructions For Models:
828 MH (MOBILE HOME)
828 DV. FS. (Freestanding)
828 DV. INS. (Insert)
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. A
qualified installer, service
agency or the gas supplier
must perform installation and
service.
WHAT TO DO IF YOU SMELL GAS
•Open windows/Extinguish any open flame
•Do not try to light any appliance.
•Do not touch any electrical switch; do not use any
phone in your building.
•Immediately call your gas supplier from a
neighbor's phone. Follow the gas supplier's
instructions.
•If you cannot reach your gas supplier, call the fire
department.
PLEASE KEEP THESE INSTRUCTIONS FOR FUTURE REFERENCE.
FOR YOUR SAFETY
Do not store or use gasoline or other Flammable vapors and liquids
in the vicinity of this or any other appliance.

SAFETY PRECAUTIONS
FOR SAFE INSTALLATION AND OPERATION OF YOUR "ENVIROGAS" ROOM HEATER,
PLEASE, CAREFULLY READ THE FOLLOWING INFORMATION:
• All "ENVIROGAS" gas-fired appliances must be
installed in accordance with these instructions. Carefully
read all the instructions in this manual first. Consult the
building authority having jurisdiction to determine the need
for a permit prior to commencing the installation.
• NOTE Failure to follow these instructions could cause
a malfunction of the fireplace that could result in death,
serious bodily injury, and/or property damage.
• Always keep the area around these appliances
clear of combustible material, gasoline or other
flammable vapors and liquids.
• Failure to follow these instructions may also void your
fire insurance and/or warranty.
• These appliances should not be used as a drying
rack for clothing or for hanging Christmas stockings or
decorations.
GENERAL
• Installation and repair should be done by a
qualified service person. The appliance should
be inspected before use and at least annually by
a qualified service person. More frequent
cleaning may be required due to excessive lint
from carpeting, bedding material, etc. It is
imperative that control compartments, burners
and circulating air passageways of the appliance
be kept clean.
• Due to the paint curing on the stove a faint odor
and slight smoking will likely be noticed when the stove
is first used. Open a window until the slight smoking
stops.
• Always connect this gas stove to a vent system
and vent to the outside of the building envelope. Never
vent to another room or inside a building. Make sure
you use the vent pipe that is specified. Make sure that
the vent is properly sized and is of adequate height to
provide the proper draft. Inspect the venting system
annually for blockage and any signs of deterioration.
• Due to high temperatures the appliance
should be located out of high traffic areas and
away from furniture and draperies.
• Do not operate with cracked or broken
glass. Under no circumstances should this
appliance be modified. Parts that have to
be removed for servicing must be replaced
prior to operating this appliance. Only
parts supplied by Envirogas should be
used in this appliance and replacements
should only be performed by a licensed or
qualified service person.
Children and adults should be alerted to hazards
of high surface temperatures and should stay
away to avoid burns or clothing ignition.
• Young children should be carefully
supervised when they are in the same room as
the appliance.
• Clothing or other flammable material should
not be placed on or near the appliance. • Never use solid fuels such as wood, paper,
cardboard, coal, or any other flammable liquids etc., in
this appliance.
FOR YOUR SAFETY
• A qualified installer, service agency or the gas
supplier must perform installation and service.
• Do not use this heater if any part has been under
water. Immediately call a qualified service technician
to inspect the heater and to replace any part of the
control system and any gas control that has been
under water.
• This installation must conform with local codes or, in
the absence of local codes with the current CAN/CGA -
B149 installation code in Canada or the National Fuel Gas
Code ANSI Z223.1.2 in the USA. • Do not abuse glass by striking or slamming door
shut
• To prevent injury, if the pilot or pilot and
burners have gone out on their own, open the
glass door and wait 5 minutes to air out before
attempting to re-light stove.
2
• To prevent injury, do not allow anyone who is
unfamiliar with the operation to use the stove.

TABLE OF CONTENTS
1 Code Approvals ...........................................................................................................................................3
Specifications...............................................................................................................................................3
2 Dimensions and Clearances to Combustibles .............................................................................................4
Zero Clearance Box Assembly .................................................................................................................... 5
3 Deciding Where to Locate Your Stove .........................................................................................................6
4 Assembly Instructions ..................................................................................................................................6
Fireplace Insert ............................................................................................................................................ 7
5 Installing burner control assembly ............................................................................................................... 8
6 Installation of Log Sets and Embers.............................................................................................................8
7 Electrical Requirements ...............................................................................................................................9
8 Gas Line Connection....................................................................................................................................10
9 Air Shutter Adjustment .................................................................................................................................11
10 Venting........................................................................................................................................................12
11 Mobile Home Fuel Conversion ....................................................................................................................19
12 Operating Instructions .................................................................................................................................20
13 Routine Maintenance ..................................................................................................................................21
14 Trouble Shooting.........................................................................................................................................22
15 Parts and Accessories ................................................................................................................................23
16 Warranty .....................................................................................................................................................24
17 Installation data sheet................................................................................................................................ 25
1. CODES AND APPROVALS
• Direct Vent Type is designated by the suffix DV. This type of appliance draws all of the air for combustion from outside of the dwelling
through specially designed vent pipe.
These appliances have been tested by International Approval Services and found to comply with the established standards for DIRECT
VENT WALL FURNACES in CANADA and the USA as follows:
LISTED GAS FIRED GRAVITY DIRECT VENT WALL FURNACE ( 828 DV. Nat. & LPG. )
TESTED TO: ANSI Z21.44-1991 GAS FIRED FAN TYPE DIRECT VENT WALL FURNACE. CAN/CGA 2.19-M81 GAS FIRED GRAVITY
AND FAN TYPE DIRECT VENT WALL FURNACE. CGA INTERIM REQUIREMENT NO. 41-1991 DIRECT VENT GAS FIREPLACES
CGA INTERIM REQUIREMENT NO. 55 - ADDITION REQUIREMENTS FOR DIRECT VENT FIREPLACES. CGA 2.17-M91 GAS FIRED
APPLIANCES FOR USE AT HIGH ALTITUDE
2
ENVIROGAS 828 DIRECT VENT UNITS;
• Have all been certified for use with either natural or propane gases. (See control panel and rating label.)
• Are not for use with solid fuels.
• Are approved for bedroom or bedsitting room.
• Must be installed in accordance with local codes if any. If none exist use current installation code CAN/CGA B149 in Canada or ANSI
Z223.1 / NFPA 54 in the USA.
• Must be properly connected to an approved venting system.
• Manufactured (mobile) home installation must be in accordance with the Manufactured Home Construction and Safety Standard, UL
307B, Title 24 CFR, Part 3280 and/or The Standard for Manufactured Home Installations, ANSI A225.1/NFPA 501A. The unit must be
bolted to the floor of the mobile home and must be electrically grounded to the steel chassis.
FREESTANDING;
• Are approved for installation on combustible materials.
• Are not approved for closet or recessed installations.
INSERT;
• are for installation in solid fuel burning fireplaces only;
• can be installed in Envirogas Zero Clearance Can kit 828-134 as a zero clearance unit.
3

2. DIMENSIONS AND CLEARANCES TO COMBUSTIBLES
FIREPLACE INSERT: The stove can only be installed in a solid fuel burning fireplace .
Mantle pillar to stove 10”
Stove top to 8” wide mantle 12”
Minimum firebox size W 26” x H 20” x D 20”
(NOTE; standard size shown – optional 33”H x 46”W available)
FREESTANDING:
Side wall to stove 10"
Rear wall to stove 4"
Combustible to stove Top 22"
Floor to stove 0"
Corner clearance 2"
Alcove depth 48"
Maintain sufficient clearances for service and maintenance
FIREPLACE INSERT / WITH ZERO CLEARANCE KIT ( Part # 828- 134 )
After deciding where to locate the fireplace insert you must frame an opening to except the Zero Clearance Box to reduce the clearance to
combustibles. The framing dimensions are as follows; 32 1/4” wide, 29 3/8” high and a depth of 14 3/4”.
The header at the top front of the opening must be a 2x4 on edge or a cut out in the 2x4 to maintain clearances to combustibles to the vent
pipe. A minimum of 1 1/2” clearance must be maintained to the vent pipe.
Before you install the Zero
Clearance Box you must
determine the finished hearth
height.(including tiles, subfloor, etc.)
The bottom of the box must be the
same height as the finished
hearth height.
4

ZERO CLEARANCE BOX ASSEMBLY;
First take the kit from the box and place the surround panels aside so as not to damage the panels. There will also be a bag of screws, nuts
and bolts in the box. The bottom section of the kit will have two 3 inch square boxes mounted to the bottom. First attach the bottom to the
back with the screws provided, the hole should be located in the
lower right hand corner looking at it from the front. The side can then
be mounted to the bottom panel and the back panel. There are three
(3) vee shaped standoffs with six screw holes in each, and they
should be mounted on both sides as well as the back. There are also
two (2) triangular support brackets that must be fastened to the inside
of the box. There is a right hand and a left hand bracket, they should
be mounted with the flanges pointing upwards.
There are two long “L” shaped framing brackets that are screwed in
from the outside front edge of each side. Each bracket has three
adjustment holes depending on the thickness of the finished wall. The
hole that is furthest forward are for a wall thickness of 1/2” drywall
and the other holes are for other wall thickness up to 7/8” thick. The
Zero Clearance kit must be flush with the finished wall.
The next step is to put the top on the box. It will fit inside of the back
and side panels and is screwed in from the outside. The two short
vee shaped standoffs are screwed on to the top of the zero clearance kit. There are two large “L” type brackets that are to be screwed
down on either side of the hole were the flue pipe exits the box. These two brackets are to locate the clamping bracket that holds the
Simpson Duravent Telescoping pipe and allows the 828 unit to be disconnected and
removed if the unit needs to be repaired.
The next step is to attach the top extension to the Zero Clearance box. This is screwed
to the top front edge. The top framing bracket is in turn screwed to the top extension.
This top framing bracket has the same adjustment settings as the side framing
brackets.
Once the Zero Clearance box has been assembled it can be attached to the wall.
Place the unit into the framed opening and make sure the box is plumb and level.
The gas line then should be run through one of the three holes provided. The electrical
cord and conduit (if a fan is to be installed) should also be run into the box at this time.
The electrical box that is supplied with the fan kit will be mounted on the side, there
are two holes inside the Zero Clearance box for mounting.
The venting is the next step of installation. The pipe support on the top of the Zero
Clearance kit is made to hold the telescoping pipe section. The clamp should be
fastened 2” down from the top of the male end of the pipe.
This will allow the top of the pipe to be held in place while
the bottom section of pipe is attached to the stove.
The wall can now be finished with drywall and mantel if so
desired.
Installing the 828 direct vent insert. The unit can be lifted
up and put on the two support boxes on the bottom of the
box and then pushed back into the box. There are two
holes that must line up from the triangular supports inside
the Zero Clearance box to the holes on the inserts side
panel brackets and attached with the two screws provided.
The vent pipe should then be connected to the top of the
fireplace as well as the gas and electrical connections. The
vented skirt can now be mounted to the bottom of the unit
with the two 10 x 24 hex head screws provided, inserted
into. The surround panel can now be assembled and
bolted to the front of the stove.
5

3. DECIDING WHERE TO LOCATE YOUR STOVE
FREESTANDING:
• Locate the stove in a large and open room that is
centrally located in the house. This will optimize heat
circulation and comfort.
• The stove should be located out of traffic, away from
furniture and draperies and should have sufficient
access for its safe operation and maintenance.
• The flow of convection air can not be blocked
• The stove can be installed on any combustible flat
surface providing that it is installed on a metal or wood
panel extending the full width and depth of the
appliance.
• Check the stove and flue system clearance
requirements. Locate a position where the flue system
of the stove can be properly installed without damaging
the integrity of the building. e.g. cutting through a wall or
ceiling joist.
• Locate the stove where it can be accessed by a gas
supply line.
• Note: If the stove is equipped with the optional
convection fan, the electrical cord is only 8 ft. (2.4 m)
long.
FIREPLACE INSERT
• The fireplace insert model can only be located in an existing wood burning steel or masonry fireplace. The existing chimney
must be lined using a Simpson Dura Vent sealed co-linear vent system using the Envirogas kit 828-135 (DV insert / co-linear
adapter).
4. ASSEMBLY INSTRUCTIONS
INSTALLATION
Remove the packaging from the appliance, pedestal or surround panels and burner controls, check to make sure there is no
damage. Carefully check the glass door. Do not use the unit if it is damaged. In the event damage is found, please report it to
both the courier and your dealer as soon as possible.
• Open the two hinged side panels, open the door by undoing the bolt, located on the right side (1/2 inch wrench).
• Remove the log and ember set from the firebox.
• Remove the two hold down clamps that attach the stove to its pallet ( #2 Robertson screwdriver ). These are hooked through
the square openings immediately behind the side panels on each side of the unit.
BOTTOM VIEW
FREESTANDING
• Place the stove on its back, on the pallet.
• Back off the 4 screws ( 5/16 hex head located on the base) 2 turns. Place the
pedestal so that the screws in the base of the stove engage the keyholes in the
pedestal. Check to see that all screws are locked, then tighten with a 5/16 socket
wrench.
• Return unit to upright position. Complete the installation. Install the burner
controls, log set, embers and optional fan kit as per the instructions in the upcoming
sections. PEDESTAL MOUNTING SCREWS
6

FIREPLACE INSERT
• Carefully clean the fireplace and flue before installing the stove. Failure to do so may result in fumes or dirt being blown into
the room or insert and may cause a fire leading to death or serious injury.
• If you are installing the optional fan kit, (see Installing Fan Kit) do so now.
• If the fireplace has a dropped or uneven bottom, install the optional rear leveling legs. The leg brackets attach into the side rear
of the firebox with the torx screws provided. Thread the 5” bolt into the retaining nut. Install the lock nuts.
• Install front and rear mounting rails using the screws provided (See
figure 4). Mount the 3” vent coupling to the unit, making sure you have
compressed the larger round gasket.
Back Rail
Securely fasten (with a clamp or screws) the vent adapter box to the
flexible 3” vent pipe liners previously installed in the chimney. Be
careful not to over stretch the liners. Caution: do not mix up the
intake with the exhaust pipe.
• Place the unit part way into the fireplace opening. Connect the insert's
flexible gas line to the household gas supply using locally approved
methods.
• For units with optional fan, place the power cord so it can be connected
to the power supply.
• Push the unit into its final position in the fireplace. Adjust the leveling
legs and tighten the lock nuts, insuring that the appliance is stable and
level.
• Push the insert adapter box under the rear rail then push down on the
front of the box. Install the screw to secure.
• Remove the screws holding the hinged side flaps to the panel
mounting brackets on each side of the unit (fig 5).
Insert Adapter Box
3” Vent Coupling
Front Rail
• Loosen the 1/4" nuts (7/16" wrench) holding the stove top to
the unit. Pull the top forward, lift up and remove.
• Attach the surround panels together on the floor, using the
two 1/4” nuts and bolts provided per side.
• For units with optional fan, connect fan wire harness to the
blower wires following the wiring diagram.
• Place the assembled surround panel around the stove, in
front of the surround mounting brackets. Make sure the top
panel sits flat on the stove and the mounting holes on the
side, line up.
• Re-attach the hinged side flaps, screwing through the
surround panel into the brackets. Re-install the top and
secure.
7

5. INSTALLING BURNER CONTROL ASSEMBLY
Remove the controls from box, check for shipping damage. Remove burner
tray from controls (one screw on each side between burners).
Open door. Remove grate rod by pulling up at each end. Remove the 2
screws behind the grate and one screw on each side of control opening in
firebox.
Extend flex gas line and place through hole in center of pedestal (freestanding
and inserts) or through hole in right or left firebox side (insert only). Lower the
controls into place at the back while pulling the flex line through on other side.
Lower front into place, the control knob may need to be pushed in to allow
burner controls to fit.
Install the two side screws, then install the front screws through the grate into
the firebox. Replace burner tray.
Install the grate rod and logset.
6. INSTALLATION OF LOG SET and EMBERS
Upon the first light up, watch for ignition to all burner
ports. If a long delay is noted:
a) First, wait for the appliance to cool down
b) Open the front door of the appliance.
c) Checks to Carefully reposition the embers making sure
that burner ports are not plugged solid or blocked
CAUTION: NEVER OPERATE THIS APPLIANCE WITH THE
DOOR REMOVED
INSTALLING THE LOG
a. INSTALLING THE GLOWING EMBERS
Carefully remove log from unit. Check to ensure there is
no damage. It is very important to install this log in its
proper position to insure safe optimum operating
conditions.
A bag of ceramic fiber embers is provided for use on the
front burner ember tray.
CAUTION: Use only the type of ember material supplied
with this appliance. Due to the irregular size of the ember
material there may be more than required. Use only a
single layer. Do not pile embers. The use of other foreign
materials on the burners may create dangerous
conditions.
If over time, through cleaning and servicing, these embers
require replacement, contact your nearest ENVIROGAS
dealer for replacement embers.
Gently remove the ember material from the plastic bag.
Spreading these pieces evenly across the front of the
ember tray. Place a single layer of embers on top of the
front burner. Carefully avoid any clumping or large build-
ups.
Do not pack down, leave embers loose. 1. Open the front door.
DO NOT PLACE EMBERS ON THE REAR BURNER.
8

2. Place the log with Burnt Area forward on log
supports. Locate the log by matching the bottom
pegs to the receiving holes in rear log supports.
3. Close door securely
7. ELECTRICAL REQUIREMENTS
The ENVIROGAS 828 Series will operate without an external electrical power supply. This model has a Millivolt gas control
which uses the pilot flame to generate enough electricity to operate the main burners.
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper
and dangerous operation. Verify proper operation after servicing.
FAN INSTALLATION
OPTIONAL FAN
Efficiency and heat output of the unit increases with the operation of the fan.
• This appliance is equipped with a three-prong (grounding) plug for your protection against shock hazard, and should be
plugged directly into a properly grounded three-prong outlet. DO NOT cut or remove the grounding prong from this plug.
The appliance, when installed with optional blower , must be electrically connected and grounded in accordance with local
codes or in the absence of local codes, with the current CSA C22.1 CANADIAN ELECTRICAL CODE Part 1, SAFETY
STANDARDS FOR ELECTRICAL INSTALLATIONS, OR THE NATIONAL ELECTRICAL CODE ANSI / NFPA 70 in the USA.
9

8. GAS LINE CONNECTION AND TESTING
WARNING: Only persons licensed to work with gas piping can make the gas connections to this appliance.
This appliance is equipped with a 3/8” stainless steel flex line from the valve. This line may be routed through the hole in the rear
of the pedestal, or on inserts, routed through the fire box sides. An adapter plate is available for installations that do not allow flex
pipe through cabinetry.
NOTE: Consult your local authorities and in CAN. the CAN/CGA-B149 (1 or 2) Installation Code, For USA gas installations follow
either local codes or the current edition of the National Fuel Gas Code ANSI. Z223.1.
The appliance and its shutoff valves must be disconnected from the gas supply piping system during any pressure testing where the
pressure exceeds 1/2 PSIG (3.45 kPa) or damage will occur to the valve.
The appliance 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 pressures equal to or less than 1/2 psig (3.5 kPa).
Always check for gas leaks with a soap and water solution or an approved manner after completing required pressure
tests.
ORIFICE SIZES, PRESSURES AND BTU'S
The efficiency rating of this appliance is a product thermal efficiency rating determined under continuous operating conditions and
was determined independently of any installed system. All models are equipped with a variable output gas control.
NATURAL GAS PROPANE
ORIFICES (Front / Rear) #51 DMS / #49 DMS #59 DMS / #56 DMS
Manifold Press: 3.5"wc / 0.87 kPa 10.0"wc / 2.49 kPa
Min. Manifold Press: 2.1"wc / 0.52 kPa 6.2"wc / 1.54 kPa
Max. Supply Press: 7.0"wc / 1.74 kPa 13.0"wc / 3.23 kPa
Desired Supply Press: 7.0"wc / 1.74 kPa 11.0”wc / 2.74 kPa
Min. Supply Press: 5.0"wc / 1.25 kPa 10.5"wc / 2.62 kPa
Max. BTU/H Input: 26,500 / 7.6 kW 26,500 / 7.6 kW
Min. BTU/H Input: 21,000 / 6.15 kW 21,000 / 6.15 kW
MOBILE HOME Manifold Press: 4.0"wc / 1.00 kPa 10.0"wc / 2.49 kPa
In Canada and the United States these appliances are certified for altitudes of 0-4500 ft. / 1370 m.
TO TEST VALVE PRESSURES
-Turn set screw counter clockwise to loosen, 2 turns.
-Place 5/16" I.D. hose over pressure tap system.
-When finished, release pressure, remove hose & tighten set
screw.
EUROSIT VALVE:
The pressure taps are located through the left side of the
pedestal on the left side of the valve
(Rear - inlet pressure, Front - manifold pressure).
NOVASIT VALVE:
The pressure taps are located on the front of the valve
through the control panel.
(Left - manifold pressure, Right - inlet pressure).
NEVER USE AN OPEN FLAME FOR LEAK TESTING.
10

9. AIR SHUTTER ADJUSTMENT
• There is a separate venturi air shutter for each burner
• The venturies have been set for installation at sea level to 4,500 ft.
• To adjust for higher altitudes: Remove the access cover plate, loosen the air shutter locking screws with a long screwdriver.
Rotate the air shutters to the correct setting. The flame should be bright yellow in color and have a lively appearance. If
sooting occurs on the glass then the venturi opening may need to be increased.
11

10. VENTING
VENT TERMINATION CLEARANCES
A= Clearance above grade, verandah, porch, deck, or
[balcony (*12 inches (30cm) minimum]
B= Clearance to window or door that may be opened [*12
inches (30cm) minimum]
C= Clearance to permanently closed window [minimum 12
inches (30cm) recommended to prevent condensation on
window]
D= Vertical clearance to ventilated soffit located above
the terminal within a horizontal distance of 2 feet (60cm)
from the center-line of the terminal [24 inches ( 60cm)
minimum]
E= Clearance to unventilated soffit [18 inches (45cm)
minimum]
F= Clearance to outside corner [12 inches minimum]
G= Clearance to inside corner [ 12 inches minimum]
H= *Not to be installed above a meter/regulator assembly
within 3 feet (90cm) horizontally from the center-line of
the regulator
I= Clearance to service regulator vent outlet [*6 feet (1.8m)
minimum]
J= Clearance to non-mechanical air supply inlet to building or
the combustion air inlet to any other appliance [12
inches (30cm) minimum]
K= Clearance to a mechanical air supply inlet [*6 feet
(1.8m) minimum]
L= *** Clearance above paved side-walk or paved driveway
located on public property [*7 feet (2.1m)
minimum]
M= Clearance under verandah, porch, deck, or balcony [*24
inches (60cm) minimum **]
*** A vent shall not terminate directly above a side-walk or paved driveway which is located between two single family dwellings and serves
both dwellings **
Only permitted if verandah. Porch, deck, or balcony, is fully open on a minimum of 2 sides beneath the floor
• As specified in CGA B149 Installation Codes (1991) Note: Local Codes or Regulations may require different clearances
12

These models have been tested and certified for use with SIMPSON DURAVENT DIRECT VENT TYPE "GS" PIPE FOR GAS
STOVE. Kits are available for vertical venting or horizontal venting. It is recommended that a bead of RTV High Temperature
Silicone be applied to each vent joint before installation.
A MINIMUM VERTICAL LENGTH OF 24" TO THE FIRST 90 DEGREE ELBOW IS REQUIRED. WITH THIS MINIMUM VERTICAL
RISE, HORIZONTAL RUNS OF FROM ONE TO FOUR FEET ARE PERMITTED TO REACH THE OUTSIDE VENT TERMINATION.
VENTING TERMINALS CANNOT BE RECESSED INTO A WALL OR SIDING. FOLLOW THE VENTING SHOWN IN PRECISELY.
These models have been tested and certified for use with SIMPSON DURAVENT DIRECT VENT TYPE "GS" PIPE
FOR GAS STOVES. Kits are available for vertical venting or
horizontal venting. It is recommended that a bead of RTV High Temperature Silicone be applied to each outer
vent joint and milpac to each inner joint before installation.
A MINIMUM VERTICAL LENGTH OF 24" TO THE FIRST 90 DEGREE ELBOW IS REQUIRED. WITH THIS
MINIMUM VERTICAL RISE, HORIZONTAL RUNS OF FROM ONE TO FOUR FEET ARE PERMITTED TO REACH THE
OUTSIDE VENT TERMINATION.
BEFORE BEGINNING THE INSTALLATION TAKE CARE TO ENSURE AN APPROPRIATE OUTSIDE LOCATION FOR
THE VENT TERMINATION CAN BE ACCOMMODATED. FOLLOW THE VENT LENGTH DIAGRAM PRECISELY.
VENTING TERMINALS CANNOT BE RECESSED INTO A WALL OR SIDING.
If extra elbows are being used, overall allowable length will be reduced by 3 ft. per additional elbow
PLANNING YOUR INSTALLATION
There are two basic types of Direct Vent System installations. The two types of installations are:
Simpson Duravent Parts
Number Description Number Description
908B 6" Pipe Length, Black
907B 9" Pipe Length, Black
906 (B) 12" Pipe Length, (Black)
904 (B) 24" Pipe Length, (Black)
903 (B) 36" Pipe Length, (Black)
902 (B) 48" Pipe Length, (Black)
911 (B) 11" to 14-5/8" Pipe , Adjustable, Black
945 (B) 45°Elbow, (Black)
943S Flashing, 7/12 to 12/12 Roof Pitch
953 Storm Collar
990 (B) 90°Elbow, (Black)
940 Round Support / Wall Thimble Cover
941 Cathedral Ceiling Support Box
943 Flashing, 0/12 to 6/12 Roof Pitch
963 Ceiling Firestop
988 Wall Strap
984 Horizontal Square Termination
985 High Wind Horizontal Termination
980 Vertical Termination
991 High Wind Vertical Termination
950 Vinyl Siding Standoff
942 Wall Thimble
971 Horizontal Termination Kit A
Add suffix (B) for optional black parts as listed.
Vertical Termination Horizontal Termination
13

When planning your installation, it will be necessary to select the proper length of vent pipe for your particular requirements. It is
important to note when passing through a wall, the maximum allowable wall thickness is 10-inches (254mm), 1 ½ inches clearance
to combustibles must be maintained. Select the amount of vertical rise desired for “vertical-to-horizontal” type installations. To
determine the length of vent pipe required for vertical installations, measure the distance from the appliance flue outlet to the ceiling,
the ceiling thickness, the vertical rise through the attic or second story, and allow for sufficient vent height above the roofline. For
two story applications, A firestop is required at each floor level. If an offset is needed in the attic, additional pipe and elbows will be
required. To connect the venting system to the appliance flue outlet, a twist-lock adapter is built into the appliance at the factory.
HORIZONTAL INSTALLATION
STEP 1. Set the appliance in the desired location. Check to determine if wall studs or roof rafters are in the way when the venting
system is attached. If this is the case, you may want to adjust the location of the appliance.
STEP 2. Direct vent pipe and fittings are designed with special twist-lock connections. Assemble the desired combination of black
pipe and elbows to the appliance adapter with pipe seams oriented towards the wall or floor, as much out of view as
possible.
Place a bead of Mil-PAC on the outer edge of the inner exhaust pipe (non-flared end). Place a bead of high temperature silicone on
the male edge of the outer pipe. Push the pipe sections completely together, then twist-lock one section clockwise approximately
one-quarter turn, until the two sections are fully locked. The female locking lugs will not be visible from the outside, on black pipe.
They may be located by examining the inside of the female ends as shown in FIG-10.
NOTE:
(1) Twist-lock procedure: four indentations, located on the female
end of the pipes and fittings, are designed to slide straight onto
the male ends of adjacent pipes and fittings, by orienting the
four pipe indentations so they match and slide into the four
entry slots on the male end.
(2) Horizontal runs of vent pipe must be supported every three
feet. Wall straps are available for this purpose.
FIG. 10
FIG.10
STEP 3.With the pipe attached to the stove into the correct location, mark the wall for a 10 inch x 10 inch square hole. The center
of the square hole should match the centerline of the horizontal pipe. Cut and frame the 10-inch x 10-inch hole in the
exterior wall where the vent will be terminated. If the wall being penetrated is constructed of non-combustible material i.e.
masonry or concrete, a 7-inch hole is acceptable.
STEP 4. Position the horizontal vent termination in the center of the 10-inch square hole, and attach to the exterior wall with the
four screws provided. Before attaching the Vent Termination to the exterior wall, run a bead of non-hardening mastic
around the edges, so as to make a seal between the termination and the wall. The arrow on the vent termination should
be pointing up, insure that the proper clearances to combustible materials are maintained.
STEP 5. Before connecting the horizontal run of the vent pipe to the vent termination, slide the black decorative wall thimble cover
over the vent pipe.
STEP 6. Slide the appliance and vent assembly towards the wall, carefully inserting the vent pipe into the cap assembly. It is
important that the vent pipe extend into the vent cap a sufficient distance with a minimum of 1 1/4” inch overlaps. Secure
the connection between the vent cap pipe and the vent cap by attaching the two sheet metal straps extending from the
vent cap assembly into the outer wall of the vent pipe. Use the two sheet metal screws provided to connect the straps to
the vent pipe. Bend any remaining portion of the sheet metal straps back towards the vent cap, so the decorative wall
thimble FIG-13 will conceal it.
14

STEP 7. Slide the decorative wall thimble up to the wall surface and attach with the screws provided. Apply
decorative brass
or chrome trim if desired. FIG-14.
FIG. 11 FIG. 12
FIG-13 FIG-14
NOTES: (1) The four wood screws provided should be replaced with the appropriate fasteners for stucco, brick, concrete, or
other types of siding.
(2) For buildings with vinyl siding, a vinyl siding standoff (950), should be installed between the vent cap and the
exterior wall FIG-12. Attach the vinyl siding standoff to the horizontal termination. The vinyl siding standoff
prevents excessive heat from possibly melting the vinyl siding material. Note that the horizontal vent termination
bolts onto the flat portion of the vinyl siding standoff. (shaded area in FIG-12), so that an air space will exist
between the wall and the vent termination.
NOTES: (1) The horizontal run of vent pipe must be level and should have a ¼ inch rise for every one foot of run towards
the termination. Never allow the vent to run downward. This could cause high temperature and may present the
possibility of a fire
(2) The location of the horizontal vent termination on the exterior wall must not be easily blocked or obstructed.
Termination clearances are as follows:
(3) When installing a vent pipe in a chase the minimum clearances to combustible is 4” inches (100 mm).
15

VERTICAL INSTALLATION
STEP 1. Check the instructions for required clearances (air spaces) to combustibles when passing through ceilings, walls, roofs,
enclosures, attic rafters , or other nearby combustible surfaces. Do not pack air spaces with insulation.
STEP 2. Set the gas appliance in the desired location. Drop a plumb bob down from the ceiling to the position of the appliance flue
exit, and mark the location where the vent will penetrate the ceiling. Drill a small hole at this point. Next, drop a plumb bob
from the roof to the hole previously drilled in the ceiling, mark the spot where the vent will penetrate the roof. Determine if
ceiling joists, roof rafters, or other framing will obstruct the venting system. You may wish to relocate the appliance, or to
offset, to avoid cutting load bearing members.
STEP 3. To install the Round Support Box/Wall Thimble in a flat ceiling, cut a 10- inch square hole in the ceiling, centered in the
hole drilled in Step 2. Frame the hole as shown in FIG-16.
STEP 4. Assemble the desired lengths of black pipe and elbows necessary to reach from the appliance adapter up through the
Round Support Box. Insure that all pipe and elbow connections are in their fully twist-locked position.
STEP 5. Cut hole in the roof centered on the small hole placed in the roof from Step 2. The hole should be of sufficient size to
meet minimum requirements for Clearance to Combustibles, as specified. Continue to assemble lengths of pipe and
elbows necessary to reach from the ceiling Support Box up through the roofline. Galvanized pipe and elbows may be
utilized in the attic, as well as above the roofline. The galvanized finish is desirable above the roofline, due to the higher
corrosion resistance.
STEP 6. Once the pipe sections have been joined, and run up through the hole in he roof, slip an elbow strap (Part-989) over the
exposed sections, bend the support straps outwards, and push the Elbow Strap down to the roof level, as shown in FIG
17. Tighten the clamp around the Pipe section. Use a level to make sure the pipe is truly vertical. With roofing nails,
secure the support straps to the roof. Seal the nails holes heads with non-hardening mastic. Trim the excess length of the
support straps that extend out beyond the edge of the flashing.
STEP 7. Slip the flashing over the pipe section protruding through the roof. Secure the base of the flashing to the roof with roofing
nails. Use a non-hardening sealant between the uphill edge of the flashing and the roof. Insure the roofing material
overlaps the top edge of the flashing as shown in FIG 17. Verify that you have at least the minimum clearance to
combustibles at the roofline.
STEP 8. Continue to add pipe sections until the height of the vent cap meets the minimum code requirements. FIG 22. Note that
for steep roof pitches, the vent height must be increased. In high wind conditions, nearby trees, adjoining roof lines, steep
pitched roofs, and other similar factors can result in poor draft, or down drafting. In these cases, increasing the vent height
may solve the problem.
STEP 9. Slip the Storm Collar over the pipe, and push it down to the top of the roof flashing as shown in FIG 17. Use the non-
hardening sealant around the joint between the pipe and the Storm Collar.
STEP 10. Twist lock the vent cap.
FIG-16 FIG-17
16

NOTES:
(1) If an offset is necessary in the attic to avoid obstructions, it is important to support the vent pipe every 3
feet, to avoid excessive stress on the elbows, and possible separation. Wall straps are available for this purpose. FIG-
18
(2) When ever possible, use 45°degree elbows instead of 90°degree elbows. The 45°degree elbow offers less
restriction to the flow of flue gases and intake air.
NOTES:
(1) For multi story installations. A ceiling firestop (part 963) is required at the second floor, and any subsequent
floors. FIG-19. The opening should be framed to 10-inch x 10-inch inside dimensions, in the same manner as shown in
FIG-16.
(2) Any occupied areas above the first floor, including closets and storage spaces, which the vertical
vent passes through, must be enclosed. The enclosure may be framed and sheetrocked with standard building
materials. However consult the appliance manufactures installation instructions for the minimum allowable clearance
between the outside of the vent pipe, and the combustible surfaces of the enclosure. Do not fill any required air
spaces with insulation.
FIG. 18 FIG.19 FIG.20
FIG-21 FIG-22
17

CATHEDRAL CEILING INSTALLATION
Step 1. Follow installation steps 1 and 2 under Vertical
Termination.
Step 2. Using the plumb bob, mark the centerline of the
venting system on the ceiling and drill a small hole
through the ceiling and roof at this point. From the roof,
locate the drill hole and mark the outline of the Cathedral
Ceiling Support Box.
Step 3. Remove shingles or other roof covering as
necessary to cut the rectangular hole for the Support Box.
Cut the hole 1/8 larger than the support Box outline.
Step 4. Lower the Support Box through the hole in the
roof until the bottom of the Support Box protrudes at
least 2 inches below the ceiling. (Fig. 18). Align the
Support Box both vertically and horizontally with a level.
Temporarily tack the Support Box in place through the
inside walls and into the roof sheathing.
Step 5. Using tin snips, cut the Support Box from the top
corners down to the roofline, and fold the resulting flaps
over the roof sheathing. (Fig. 20). Before nailing it to the
roof, run a bead of non-hardening mastic around the top
edges of the Support Box, to make a seal between the
Box and the roof. Clean our any combustible material
from inside the Support Box.
Step 6. Complete the Cathedral Ceiling Installation by
following the same procedures outlined in Steps 4
through 9 for Vertical Termination.
FIREPLACE INSERT INSTALLATION
Parts:
923GK Chimney Liner Termination Kit
923F Co-Linear Flex Connectors
The Envirogas 828 insert may be installed and vented into any solid fuel fireplace that
has been installed in accordance with the National, Provincial/State and local building
codes and has been constructed of non-combustible materials.
An approved throat connector must be installed, to ensure a tight seal, top performance,
safety and efficiency. Carefully follow the manufacturer’s instructions, which
accompany the chimney liner kit.
Measure the height of the chimney before hand and purchase the appropriate kit. Never
attempt to over stretch a flexible liner to accommodate the height of the chimney.
Install sealed throat connector to prevent leakage of room air up through the chimney.
Any flue damper must be removed or blocked permanently in the open position.
The chimney must be clean, in good working order and constructed out of non-
combustible materials.
Make sure that all chimney cleanouts are tightly fitting and will not permit air to leak into
the chimney.
ZERO CLEARANCE INSERTS
Follow the vent installation instructions for Horizontal or Vertical installations using the
GS vent system
18

11. MOBILE HOME FUEL CONVERSION
To convert from Propane to Natural Gas or vise-versa
1. Disconnect the unit from the gas supply.
2. Open the door and remove the logset.
3. Remove the burner tray (2 screws) and the burner control assembly by removing the 8 screws holding it into the unit.
4. Remove the control panel from the control assembly
5. Undo the pilot tube and thermocouple from the valve. Remove the pilot assembly.
6. Using a (10) mm wrench, undo the nut holding the pilot tube into the pilot assembly.
7. Remove the silver colored pilot orifice and exchange it with the placement orifice.re
“
10
Note: The NG orifice is stamped “51” the LPG is stamped 30”.
8. Re-attach the pilot tube into the pilot (caution: the brass nut rounds easily) Make sure it is tight.
9. Re-install the pilot assembly and re-attach the thermocouple to the valve.
10. Remove the nut on the gas regulator and place the black pin in the correct position for the fuel type, re-install the nut.
11. Change the burner orifices with the alternate set NG #51 front #49 rear
LPG #59 front #56 rear
12. Re-install the control panel, to the burner control assembly
13. Re-install the burner tray and logset. Re-connect the gas supply.
• When the unit is installed in a Mobile Home it must be grounded to the steel chassis or connected to a grounding rod.
• In a Mobile Home installation the unit must be bolted securely to the floor using the holes provided.
• Manufactured (mobile) home installation must be in accordance with the Manufactured Home Construction and Safety
Standard, UL 307B, Title 24 CFR, Part 3280 and/or The Standard for Manufactured Home Installations, ANSI A225.1/NFPA
501A
Holes for unit hold
down screws
19

12. OPERATING INSTRUCTIONS
FOR YOUR SAFETY READ BEFORE OPERATING
WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION
MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.
A) This appliance is equipped with a pilot that must be lit by
hand by following these instructions exactly.
B) BEFORE LIGHTING smell all around the appliance area for
gas, and 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 appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas suppliers 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 attempt to repair it. Call a qualified
service technician. Force or attempted repair may result
in a fire or explosion.
D) Do not use this appliance if any part has been under
water. Immediately call a qualified service technician to
inspect the appliance and to replace any part of the
control system and any gas control which has been
under water
LIGHTING INSTRUCTIONS
1. STOP! Read the safety information above.
2. Turn off all electrical power to the appliance.
3. Turn the gas control knob clockwise to the
“off’ position.
4. Open door. Wait five (5) minutes to clear out any gas.
Close door. If you smell gas including near the floor,
STOP! Follow “B” in the above safety information.
If you don’t smell gas go to next step.
5. Find the pilot located to the right between the front and
rear burner.
6. Turn gas control knob counter-clockwise to
“PILOT”.
7. Push the gas control knob in fully and hold. Immediately
light the pilot by pushing the piezo spark ignitor. Keep
knob depressed for about 30 seconds after pilot is lit.
Release knob. If pilot goes out, repeat steps 4 through
6.
WARNING The gas valve has an lockout device which will
not allow the pilot burner to be re-lit until the
thermocouple has cooled.
• If the knob does not pop up when released, stop and
immediately call your service technician or gas
supplier.
• If the pilot will not stay lit after several tries, turn the
gas control knob to “OFF” and call your service
technician or gas supplier.
•
8. EUROSIT VALVE:
Turn gas control knob counter-clockwise to
the “LO” position. Then turn knob to the desired
setting.
9. NOVASIT VALVE:
Turn gas control knob counter-clockwise to
the “ON” position. Flip burner switch to “ON” then
turn “HI / LO” knob to the desired setting.
10.Turn on all electrical power to the unit
NOTE: Check to be sure the pilot flame engulfs the thermocouple and that the burners light completely.
TO TURN OFF GAS TO APPLIANCE
1. Turn the gas control knob clockwise to “OFF” DO NOT FORCE
2. Turn off all electrical power to the appliance if service is to be performed.
3. NOVA SIT VALVE: Flip burner switch to off.
20