Page 40
NOTE: Use a minimum round flue diameter of 7” (inches).
When using as a vented log set, refer to chart below to calculate minimum damper opening.
FOR MASONRY BUILT FIREPLACES, FREE OPENING AREA OF CHIMNEY DAMPER FOR
VENTING COMBUSTION PRODUCTS FROM DECORATIVE APPLIANCES FOR
INSTALLATION N SOLID FUEL BURNING FIREPLACES.
Appliance Input Rate (kBTU/hr)
20
30
40
50
60
70
80
90
100
110
120
Chimney
Height* (ft)
Minimum Opening** (sq. in.)
6
17.6 25.7 33.8 41.7 49.2 56.6 64.0 71.4 78.8 86.2 93.5
8
16.5 23.7 31.2 38.7 45.5 52.4 59.7 66.9 74.1 81.3 88.6
10
15.1 21.7 28.7 35.2 41.7 48.2 54.3 60.2 66.1 72.0 77.9
15
14.1 19.9 26.1 32.0 37.7 43.2 48.8 54.1 59.4 64.6 69.9
20
12.9 18.5 23.7 28.8 34.3 39.8 44.4 49.1 53.8 58.4 63.0
30
12.2 16.9 21.6 26.5 31.2 35.9 40.3 44.5 48.6 52.7 56.6
* Height is from hearth to top of chimney and the minimum height is 6 feet.
** Chart shows minimum opening (sq. in.) for a given height and input rate.
(5) See: Gas Pressure Check, page 17.
(6) See: Operating Instructions, pages 18-26.
(7) See: Burner & Pilot Flame Check for proper flame pattern, page 30.
(8) See: Cleaning Instructions, page 42.
NOTE: Visually check the pilot and burner flames annually and monthly during seasons that the
appliance is operating frequently. See page 30.
NOTE: The installation of appliances designed for manufactured home (US only) or mobile
home installation must conform with the Standard CAN/CSA Z240 MH, Mobile Housing, in
Canada or with the Manufactured Home Construction and Safety Standard, Title 24 CFR,
Part 3280, in the United States or when such a standard is not applicable, ANSI/NCSBCS
A225.1/NFPA 501A, Manufactured Home Installations Standard.
WARNING:
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.
WARNING:
Keep the appliance area clear and free from combustible materials, gasoline
and other flammable vapors and liquids.
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