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Each gas log set requires a minimum clearance for the front opening, height, and minimum depth. To determine the
largest set that will fit into a fireplace, the depth and width are the critical dimensions. The following illustration reflects a
view directly above the fireplace looking down. The minimum height for this model is 22 inches.
(Table I indicates the minimum depth and width for each set size)
MODEL
f i r e - p a r t s . c o m
21" RADIANT GLOW
24" RADIANT GLOW
30" RADIANT GLOW
20
Chimney
Height*(ft)
6
17.6
8
16.5
10
15.1
15
14.1
20
12.9
30
12.2
* 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.
FIREPLACE SIZES
FOR MASONRY BUILT FIREPLACES
FREE OPENING AREA OF CHIMNEY DAMPER FOR VENTING
COMBUSTION PRODUCTS FROM DECORATIVE APPLIANCES FOR
INSTALLATION IN SOLID FUEL BURNING FIREPLACES
30
40
50
25.7
33.8
41.7
23.7
31.2
38.7
21.7
28.7
35.2
19.9
26.1
32.0
18.5
23.7
28.8
16.9
21.6
26.5
TOP VIEW
FRONT
WIDTH
TABLE I
MINIMUM DEPTH
16 INCHES
18 INCHES
18 INCHES
TABLE II
Appliance Input Rate (kBTU/hr)
60
70
Minimum Opening** (sq. in.)
49.2
56.6
64.0
45.5
52.4
59.7
41.7
48.2
54.3
37.7
43.2
48.8
34.3
39.8
44.4
31.2
35.9
40.3
3
DEPTH
MINIMUM FRONT WIDTH
24 ½ INCHES
28 ½ INCHES
34 INCHES
80
90
100
71.4
78.8
66.9
74.1
60.2
66.1
54.1
59.4
49.1
53.8
44.5
48.6
110
120
86.2
93.5
81.3
88.6
72.0
77.9
64.6
69.9
58.4
63.0
52.7
56.6
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