Page 914008-0-0403
FIREPLACE PREPARATION
• 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.
Install and operate the appliance as directed in this manual.
FOR FACTORY BUILT FIREPLACES
FREE OPENING AREA OF CHIMNEY DAMPER FOR VENT-
ING COMBUSTION PRODUCTS FROM DECORATIVE AP-
PLIANCES FOR INSTALLATION IN SOLID FUEL BURNING
FIREPLACES
Appliance Input Rate (BTU/hr)
20 30 40
Chimney
Height* Minimum Opening** (sq. in.)
(ft)
10 11.3 16.6 22.1
15 8.6 12.6 17.3
20 7.5 10.8 14.5
25 6.6 9.6 12.6
30 6.2 9.1 11.3
35 5.7 8.0 10.8
40 5.3 7.5 10.2
* Height is from hearth to top of chimney and the minimum height is
10 feet.
** Chart shows minimum opening (sq. in.) for given height and input
rate.
FOR MASONRY BUILT FIREPLACES
FREE OPENING AREA OF CHIMNEY DAMPER FOR VENT-
ING COMBUSTION PRODUCTS FROM DECORATIVE
APPPLIANCES FOR INSTALLATION IN SOLID FUEL BURN-
ING FIREPLACES
Appliance Input Rate (BTU/hr)
20 30 40
Chimney
Height* Minimum Opening** (sq. in.)
(ft)
6 17.6 25.7 33.8
8 16.5 23.7 31.2
10 15.1 21.7 28.7
15 14.1 19.9 26.1
20 12.9 18.5 23.7
30 12.2 16.9 21.6
* Height is from hearth to top of chimney and the minimum height is
6 feet.
** Chart shows minimum opening (sq. in.) for given height and input
rate.
COMBUSTIBLE MATERIAL
Do not attach combustible material to the mantel of your fireplace. This
is a fire hazard.
Figure 7
No greeting card, stockings or ornamentation of any type should be
placed on or attached to the fireplace. This is a heating appliance. The
flow of heat can ignite combustibles.
Figure 8
