14015-1-0903
Page 7
BEFORE FULLY INSTALLING THE APPLIANCE
Before installing in a solid fuel burning fireplace, the chimney
flue and firebox must be cleaned of soot, creosote, ashes and loose
paint by a qualified chimney cleaner.
You must secure the gas log heater to the fireplace floor.
If not, the entire unit may move when you adjust the
controls. Movement of unit may cause shifting of the gas
logs which leads to sooting and improper burning. Grate
movement could cause a gas leak.
Special care is required if you are installing the unit into
a sunken fireplace. You must raise the fireplace floor to
allow access to gas log controls. This will insure adequate
air flow and guard against sooting. Raise the fireplace
floor using noncombustible materials.
1.
Center the gas log in the fireplace or firebox. The grates must
clear the fireplace or firebox screen.
2.
An anchor hole is provided in the two bottom side members
of the grate frame. After centering the grate correctly, mark
the hole positions on the fireplace/firebox floor. Drill two (2)
5/32" diameter holes approximately 1-1/2" deep for masonry
screws or 1/8" hole for sheet metal screws.
3.
Anchor the grate to the fireplace/firebox floor using the screws
provided.
Proper installation of the grate is essential to prevent any
movement of the gas logs and controls during operation.
Figure 3
FOR MASONRY BUILT FIREPLACES
FREE OPENING AREA OF CHIMNEY DAMPER FOR
VENTING COMBUSTION PRODUCTS FROM DECORA-
TIVE APPLIANCES FOR INSTALLATION IN SOLID
FUEL BURNING FIREPLACES
Appliance Input Rate (kBTU/hr)
20
30
40
50
60
70
80
Chimney
Height*
Minimum Opening** (sq. in.)
(ft)
6
17.6
25.7
33.8
41.7
49.2
56.6
64.0
8
16.5
23.7
31.2
38.7
45.5
52.4
59.7
10
15.1
21.7
28.7
35.2
41.7
48.2
54.3
15
14.1
19.9
26.1
32.0
37.7
43.2
48.8
20
12.9
18.5
23.7
28.8
34.3
39.8
44.4
30
12.2
16.9
21.6
26.5
31.2
35.9
40.3
Appliance Input Rate (KW/HR)
5.9
8.8
11.7
14.6
17.6
20.5
23.4
Chimney
Height*
Minimum Opening** (cm
2
)
(m)
1.83
113.6
165.8
218.1
269.0
317.4
365.2 412.9
2.44
106.5
152.9
201.3
249.7
293.6
338.1 385.2
3.05
97.4
140.0
185.2
227.1
269.0
311.0 350.3
4.57
91.0
128.4
168.4
206.5
243.2
278.7 314.8
6.10
83.2
119.4
152.9
185.8
221.3
256.8 286.5
9.14
78.7
109.0
139.4
171.0
201.3
231.6 260.0
*
Height is from hearth to top of chimney and the minimum
height is 6 feet (1.83m)
** Chart shows minimum opening (sq. in.) (cm
2
) for given
height and input rate.
FOR FACTORY BUILT FIREPLACES
FREE OPENING AREA OF CHIMNEY DAMPER FOR
VENTING COMBUSTION PRODUCTS FROM DECORA-
TIVE APPLIANCES FOR INSTALLATION IN SOLID
FUEL BURNING FIREPLACES
Appliance Input Rate (kBTU/hr)
20
30
40
50
60
70
80
Chimney
Height*
Minimum Opening** (sq. in.)
(ft)
10
11.3
16.6
22.1
28.3
35.3
44.2
—
15
8.6
12.6
17.3
21.2
26.4
32.2
38.5
20
7.5
10.8
14.5
18.1
22.1
26.4
31.2
25
6.6
9.6
12.6
15.9
18.1
22.9
27.3
30
6.2
9.1
11.3
14.5
17.3
20.4
24.6
35
5.7
8.0
10.8
13.2
15.9
18.9
22.1
40
5.3
7.5
10.2
12.6
15.2
18.1
20.4
Appliance Input Rate (KW/HR)
5.9
8.8
11.7
14.6
17.6
20.5
23.4
Chimney
Height*
Minimum Opening** (cm
2
)
(m)
3.05
72.9
107.1 142.6
182.6 227.8
285.2
—
4.57
55.5
81.3
111.6
136.8 170.3
207.8
248.4
6.10
48.4
69.7
93.6
116.8 142.6
170.3
201.3
7.62
42.6
61.9
81.3
102.6 116.8
147.8
176.1
9.14
40.0
58.7
72.9
93.6
111.6
131.6
158.7
10.67
36.8
51.6
69.7
85.2
102.6
121.9
142.6
12.19
34.2
48.4
65.8
81.3
98.1
116.8
131.6
*
Height is from hearth to top of chimney and the minimum
height is 10 feet (3.05m).
** Chart shows minimum opening (sq. in.) (cm
2
) for given
height and input rate.
