General Information; Fireplace Preparation - White Mountain Hearth VSM-18-1 Installation Instructions And Owner's Manual

GENERAL INFORMATION (continued)
Qualified Installing Agency
Installation and replacement of gas piping, gas utilization equip-
ment or accessories and repair and servicing of equipment shall
be performed only by a qualified agency. The term "qualified
agency" means any individual, firm, corporation or company
which either in person or through a representative is engaged in
and is responsible for (a) the installation or replacement of gas
piping or (b) the connection, installation, repair or servicing of
equipment, who is experienced in such work, familiar with all
precautions required and has complied with all the requirements
of the authority having jurisdiction.
State of Massachusetts: The installation must be made by a
licensed plumber or gas fitter in the Commonwealth of
Massachusetts.
The installation and the provisions for combustion and ventila-
tion air must conform with the National Fuel Gas Code, ANSI
Z223.1/NFPA54* Canadian Installation Code CAN/CGA B149.
*Available from the American National Standards Institute, Inc. 11 West 42nd
St., New York, N.Y. 10018.
• Turn off gas supply to fireplace or firebox.
• Have the fireplace floor and chimney professionally cleaned
to remove ashes, soot, creosote or other obstructions.
Have this cleaning performed annually after installation.
• Seal any fresh air vents or ash clean-out doors located on floor
or wall of fireplace. If not, drafting may cause pilot
outage or sooting. Use a heat-resistant sealant. Do not seal
chimney flue damper.
Installing Damper Clamp (Figure 2)
Remove all ashes or other debris from the fireplace. If the
fireplace is equipped with an ash dump be sure to seal the door
with furnace cement or high temperature silicone. Be sure to
check the damper for proper operation and verify that the flue
passageway is open. Attach damper clamp to the vent damper and
tighten hold down bolt.
Place the clamp over the lip of the damper and tighten the hold
down bolt until the clamp is securely attached to the damper. This
will prevent the damper from accidentally closing.
State of Massachusetts requirement for installation of vented
decorative appliance in a vented fireplace is the following:
In the Commonwealth of Massachusetts vent free products are
not approved.
A vented decorative gas appliance must be installed in a vented
fireplace only in the state of Massachusetts. The vent damper
must be removed or welded permanently open.
Page 6

FIREPLACE PREPARATION

High Altitude Installation
When installing this unit at an elevation above 2000 feet (in the
United States) it may be necessary to decrease the input rating by
changing the existing burner orifice to a smaller size. Generally,
input should be reduced 4 percent for each 1000 feet above sea
level. However, if the heating value of the gas has been reduced,
this general rule may not apply. Check with local gas utility for
proper orifice size identification.
For Canadian high altitude applications, this appliance is suitable
for installation at elevations between 0 feet (0m) and 4,500
(1,370m) without change.
When installing this unit at an elevation above 4500 feet (1,370m)
(in Canada), check with local authorities.
Consult your local gas utility for assistance in determining the
proper orifice for location.
Figure 2
14015-1-0903