Page 26
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 IN SOLID FUEL BURNING FIREPLACES.
Appliance Input Rate (kBTU/hr)
20
30
40
50
60
70
80
90
100
110
120
Chimney
Height* (ft)
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
Minimum Opening** (sq. in.)
* 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 10.
(6) See: OPERATING INSTRUCTIONS, pages 11-13.
(7) See: BURNER & PILOT FLAME CHECK, for proper flame pattern, page 15.
(8) See: CLEANING INSTRUCTIONS, page 27.
NOTE: Visually check the pilot and burner flames annually, and monthly during seasons
that the appliance is operating frequently. See page 15.
NOTE: “The installation of appliances designed for manufactured home (US only) or mo-
bile 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, gaso-
line and other flammable vapors and liquids.”
