Vermont Castings LHER20 User manual

10005360 6/03 Rev. 0
•Installation and service must be performed
by a qualified installer, service agency or
your gas supplier.
FOR YOUR SAFETY
DO NOT STORE
OR USE GASOLINE OR OTHER
FLAMMABLE VAPOURS AND LIQUIDS
IN THE VICINITY OF THIS OR ANY
OTHER APPLIANCE.
FOR YOUR SAFETY
What to Do if You Smell Gas:
•Do not try to light any appliance.
•Do not touch any electric switch.
•Do not use any phone in your building.
•Immediatelycallyourgassupplierfromyour
neighboursphone.Followthegassuppliers
instructions.
•Ifyoucannotreachyourgassuppliercallthe
fire department.
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.
Installation Instructions & Homeowner's Manual
Natural Vent Insert
Models: LHER20
LHEC20
LHEC30
INSTALLER: DO NOT DISCARD THIS MANUAL - Leave For Homeowner
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CERTIFIED
410 Admiral Blvd. • Mississauga, Ontario, Canada L5T 2N6 • 905-670-7777
www.majesticproducts.com • www.vermontcastings.com
Vermont Castings, Majestic Products

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10005360
Vermont Castings, Majestic Products LHE Natural Vent Insert
Table of Contents
PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING THIS APPLIANCE.
Thank you and congratulations on your purchase of a Vermont Castings fireplace insert.
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 manufacturers' warranty.
Installation Instruction
Important Curing/Burning Instructions............................................................................................... 3
Locating Your Fireplace Insert .......................................................................................................... 3
Insert Applications ............................................................................................................................. 3
Fireplace & Trim Dimensions ............................................................................................................ 4
Mantels.............................................................................................................................................. 5
Framing & Finishing .......................................................................................................................... 5
Zero Clearance Applications ............................................................................................................. 5
Gas Specifications ............................................................................................................................ 6
Gas Inlet & Manifold Pressures......................................................................................................... 6
High Elevations ................................................................................................................................. 6
Preparation........................................................................................................................................ 6
Gas Line Installation.......................................................................................................................... 6
Gas Supply Pressures ...................................................................................................................... 7
Fan Kit ............................................................................................................................................... 7
Fan Removal Instructions ................................................................................................................. 7
Installation of Trim Switch for RN/RP Gas Valves............................................................................. 7
Venting and Installation ..................................................................................................................... 8
Common Flue Installations................................................................................................................ 9
Liner Installation ................................................................................................................................ 9
Draft Relief Opening.......................................................................................................................... 9
Test Chimney Draw........................................................................................................................... 9
Vent Safety System......................................................................................................................... 10
Vent Safety Switch Access ............................................................................................................. 10
Ceramic Refractory Installation ....................................................................................................... 10
Operating Instructions
General Glass Information ............................................................................................................. 11
Louvre Removal .............................................................................................................................. 11
Glass Cleaning ................................................................................................................................ 11
Glass Frame Removal..................................................................................................................... 11
Log & Burner Lava Rock Installation ............................................................................................... 11
Large Lava Rock Placement ........................................................................................................... 12
Flame Adjustment ........................................................................................................................... 12
Flame Characteristics...................................................................................................................... 12
First Firing ....................................................................................................................................... 13
Lighting & Operating Instructions .................................................................................................... 14
Troubleshooting Gas Control (820 Millivolt Gas Valve) .................................................................. 15
Troubleshooting Gas Control (Honeywell) ..................................................................................... 16
Instructions for RF Comfort Control Valve ...................................................................................... 17
Maintenance
Cleaning the Standing Pilot Control System ................................................................................... 21
Trim Cleaning .................................................................................................................................. 21
Replacement Parts.............................................................................................................................................. 22
Optional Accessories
Remote Controls ............................................................................................................................. 25
Zero Clearance Kit .......................................................................................................................... 25
Trim Options.................................................................................................................................... 25
Warranty .............................................................................................................................................................. 26
EnerGuide............................................................................................................................................................ 28

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10005360
Vermont Castings, Majestic Products LHE Natural Vent Insert
This gas appliance should be installed by a qualified installer
in accordance with local building codes and with current CSA-
B149.1 Installation codes for Gas Burning Appliances and
Equipment.
FOR U.S. Installations follow local codes and/or the current
National Fuel Gas Code ANSI Z223.1.
FOR SAFE INSTALLATION AND OPERATION OF
YOUR GAS FIREPLACE PLEASE NOTE THE
FOLLOWING:
1. This appliance gives off high temperatures and should be
located out of high traffic areas and away from furniture
and draperies.
2. Children and adults should be alerted to the hazards of the
high surface temperatures of this appliance and should
stay away to avoid burns or ignition of clothing.
3. Children should be carefully supervised when they are in
the same room as your appliance.
4. Under no circumstances should this appliance be modified.
Parts removed for servicing should be replaced prior to
operating this appliance again.
5. Installation and any repairs to this appliance should be
carried out by a qualified service person. A professional
service person should be contacted to inspect this appli-
ance annually. Make it a practice to have all of your gas
appliances checked annually. More frequent cleaning may
be required due to excess lint and dust from carpeting,
bedding material, etc.
6. Control compartments, burners and air passages in this
appliance should be kept clean and free of dust and lint.
Make sure that the gas valve and pilot light are turned off
before you attempt to clean this unit.
7. The venting system (chimney) of this appliance should be
checked at least once a year and if needed your venting
system should be cleaned.
8. Keep the area around your appliance clear of combustible
materials, gasoline and other flammable vapor and liquids.
This appliance should not be used as a drying rack for
clothing, nor should Christmas stockings or decorations be
hung in the area of it.
9. Under no circumstances should any solid fuels (wood, coal,
paper or cardboard etc.) be used in this appliance.
10.Whether the zero clearance kit is installed directly on
carpeting, vinyl tile or any combustible material other than
wood, this heater must be installed on a metal or wood
panel extending the full width and depth of the heater. The
insert can not be installed directly onto or into
combustibles.
Installation & Operating Instructions
IMPORTANT:
PLEASE READ THE FOLLOWING CAREFULLY
It is normal for fireplaces fabricated of steel to give off
someexpansionand/or contractionnoises during the
start up or cool down cycle. Similar noises are found
with your furnace heat exchanger or car engine.
It is not unusual for your Vermont Castings, Majestic
Products gas fireplace to give off some odor the first
time it is burned. This is due to the curing of the paint
andanyundetectedoilfromthemanufacturingprocess.
Please ensure that your room is well ventilated -
open all windows.
It is recommended that you burn your Vermont
Castings, Majestic Products fireplace for at least ten
(10)hoursthefirsttimeyouuseit. Ifoptionalfankithas
been installed, place fan in the "OFF" position during
this time.
Locating Your Gas Fireplace Insert with
Zero Clearance Kit
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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FP1249
Fig. 1 Locating unit with zero clearance kit.
A) Flat on wall B) Cross corner
C) Island D) *Room divider
E) *Flat on wall corner F) Chase installation
NOTE: (Fig. 1)
* When you install your Vermont Castings, Majestic Products
fireplace in (D) Room divider or (E) Flat on wall corner positions,
a minimum of 6 (X) inches (153mm) clearance must be main-
tainedfromthe perpendicular wall and the outeredge ofthe trim.
Before installing the gas fireplace insert, consideration
must be given to the functioning needs of the fireplace.
The size of the fireplace cavity (min. 25¹⁄₄"W x 17¹⁄₄"H x
13¹⁄₂" D for the LHEC20 and LHER20, 28³⁄₄"W x 21"H x
15¹⁄₂"D for LHEC30 ), the design of the chimney for
effective venting should be determined. The availability of
the gas supply as well as electricity for the insert fan
must be confirmed.
Your Natural Vent Insert unit is designed to
be vented vertically with a minimum height
of 12 feet and a maximum vertical height of
35 feet.
Insert Applications
This appliance may be installed in an aftermarket
permanently located, manufactured (mobile) home,
where not prohibited by local codes.
This appliance is only for use with the type of gas
indicated on the rating plate.

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Vermont Castings, Majestic Products LHE Natural Vent Insert
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QVT
Q - Fireplace opening height
R - Fireplace opening width
S - Depth of insert
T - Firebox width at insert depth(S)
LHEC20 LHER20 LHEC30
A-1 20⁷⁄₈"(530mm) 20⁷⁄₈"(530mm) 26³⁄₄"(680mm)
B-1 30³⁄₄"(781mm) 30³⁄₄"(781mm) 38¹⁄₄"(972mm)
A-2 24¹⁄₄"(616mm) 24¹⁄₄"(616mm) 28³⁄₁₆"(716mm)
B-2 37¹⁄₂"(952mm) 37¹⁄₂"(952mm) 41" (1042mm)
A-3 24¹⁄₄"(616mm) 24¹⁄₄"(616mm) 28¹⁄₄"(717mm)
B-3 38¹⁄₈"(968mm) 38¹⁄₈" (968mm) 41¹¹⁄₁₆"(1059mm)
A-4 20³⁄₄"(527mm) 20³⁄₄"(527mm) 24³⁄₄"(629mm
B-4 30⁷⁄₈"(784mm) 30⁷⁄₈"(784mm) 34⁷⁄₁₆"(875mm)
A-5 28" (711mm) 28" (711mm) 32¹⁄₄"(819mm)
B-5 45" (1143mm) 45" (1143mm) 49" (1245mm)
C25⁵⁄₈"(651mm) 25⁵⁄₈"(651mm) 29³⁄₁₆"(741mm)
D16¹⁄₂"(419mm) 16" (406mm) 16⁷⁄₈"(428mm)
E35" (889mm) 35" (889mm) 35" (889mm)
F26⁵⁄₈"(676mm) 26⁵⁄₈"(676mm) 26⁵⁄₈"(676mm)
G13" (331mm) 14" (355mm) 15¹⁄₂"(394mm)
H17" (432mm) 17¹⁄₄"(438mm) 20³⁄₄"(527mm)
I13³⁄₈"(340mm) 13¹⁄₈"(333mm) 16" (406mm)
J19¹⁄₈"(486mm) 19³⁄₈"(492mm) 23¹⁄₄"(590mm)
K15" (381mm) 15" (381mm) 17" (432mm)
L10¹⁄₂"(266mm) 11¹⁄₂"(292mm) 12³⁄₄"(324mm)
M8¹⁄₂"(216mm) 8¹⁄₂"(216mm) 8¹⁄₂"(216mm)
N37¹⁄₄"(946mm) 37¹⁄₄"(946mm) 37¹⁄₄"(946mm)
O19¹⁄₈"(486mm) 19¹⁄₈"(486mm) 19¹⁄₈"(486mm)
P27¹⁄₄"(692mm) 27¹⁄₄"(692mm) 27¹⁄₄"(692mm)
Q17¹⁄₄"(438mm) 17¹⁄₄"(438mm) 21" (533mm)
R25¹⁄₄"(641mm) 25¹⁄₄"(641mm) 28³⁄₄"(730mm)
S13¹⁄₂"(343mm) 14" (355mm) 16" (406mm)
T17" (432mm) 17" (432mm) 17³⁄₄"(451mm)
U13³⁄₄"(349mm) 14" (355mm) 16" (406mm)
V18" (457mm) 18" (457mm) 21⁵⁄₁₆"(541mm)
1=LHESSB
2=LHESLB/LHEABSL/LHESLGA
3=LHECSLB/LHECSLMB/LHECSLSA
4=LHEACNSS
5=LHETCK
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Fireplace & Trim Dimensions
Minimum Fireplace
Insert Opening
U - Firebox depth at insert back height (V)
V - Insert back height
NOTE: LHESLGA is only available for
Model LHEC30
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Insulation
Gas Inlet KnockoutAir Circulating Channel
Zero Clearance Kit

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10005360
Vermont Castings, Majestic Products LHE Natural Vent Insert
When the unit is installed into a woodburning fireplace,
the minimum distance the mantel can be placed above
the fireplace is governed by local building codes
applicable to woodburning fireplaces. Consult local
authorities having jurisdiction for these clearances.
For applications requiring the use of a Zero Clearance
Kit, the minimum height a mantel can be installed
above the fireplace is 24" (610mm) from the top of the
upper louvres. The maximum mantel depth is 8"
(200mm). (Fig. 2)
The underside of the mantel will become
warm. Use only finishes which are heat
resistant and do not discolor.
Mantels
24" Min.
(610mm)
FP1325
Fig. 2 Minimum mantel height above fireplace.
Framing & Finishing
For Zero Clearance Kit applications, it is important to
determine the finished facing material before beginning
to frame. This will allow for the thickness of the finishing
material between the frame and the fireplace trim.
Similarly, consideration must be given to the 1" inch
depth of the air inlet channel sitting on the fireplace
base. Finishing material for the hearth should be flush
with the top of the air inlet channel.
If the fireplace is installed at floor level a noncombus-
tible hearth must extend a minimum 12" (305mm) in
front of the fireplace.
If the fireplace is recessed into the wall and at least 12"
(305mm) above floor level, no hearth is required.
The use of wallpaper adjacent to this
fireplace is not recommended as high
temperatures given off by this fireplace
may adversely effect the binders in the
adhesive used to apply the wallpaper.
NOTE: Insulating around the fireplace will result in
overheating and possible malfunctioning of the circulat-
ing fan.
Zero Clearance Applications
An alternate air supply is recommended
with this component.
For installation other than in existing woodburning
fireplaces such as new construction or renovation
projects, a Zero Clearance Kit must be used. The kit
enables these inserts to be installed in combustible
environments. Whenever using a Zero Clearance Kit,
consideration must be given to the dimensions of the
Zero Clearance Kit and the requirements of the Air Kit.
NOTE: If a Zero Clearance Kit is required for mod-
els LHEC20/LHER20/LHEC30 Natural Vent Inserts,
only the Vermont Castings, Majestic Products zero
clearance kit HEZC is approved to be used. When
using the HEZC with insert models LHEC20 or
LHER20, the Trim Closure Kit, LHE20TCK, must
also be installed.
35"
(889mm)
37¹⁄₄" (946mm)
27¹⁄₄" (692mm)
19¹⁄₈"
(486mm)
Air Inlet Channel
Drywall
Finish Wall Decorative Trim Kit FP1351
Fig. 3 LHE insert framing dimensions.