35
Table 5
– Max Suggested Firing rate for a Given Combustion Chamber Size
Air Cone Size
1
Firing
Rate
(gal/hr)
Square
Chamber
Diameter
Round
Chamber
Rectangular
Chamber
Rect.
Chamber
Height
Nozzle
Distance
to Floor
E
HA
& E
HA
S
R Onl
y
1A
0.75
*
10"
8" x 9"
9"
4"
1.00
*
11"
10" x 10"
10"
4 1/2"
1.25
*
12"
11" x 11"
11"
5"
2A
1.35
*
12"
11" x 11"
11"
5"
1.50
*
13"
11" x 12"
12"
5"
3A
1.65
*
14"
12" x 13"
13"
5"
1.75
*
14"
12" x 13"
13"
5"
4A
2.00
*
15"
13" x 14"
13 1/2"
5 1/2"
2.50
*
17"
14" x 16"
14"
5 1/2"
3.00
15 1/2" x 15 1/2"
17 1/2"
13" x 18 1/2"
14"
7"
E
H Onl
y
Cast iron air cone
P/N:13003
3.00
15 1/2" x 15 1/2"
17 1/2"
13" x 18 1/2"
14"
7"
3.50
17 3/4" x 17 3/4"
20"
15" x 23"
15"
7 1/2"
4.00
19" x 19"
23 1/2"
16" x 22 1/2"
16"
8"
4.50
20" x 20"
*
17" x 23 1/2"
17"
8 1/2"
Cast iron air cone
P/N:101366-001
5.00
23 1/4" x 23 1/4"
*
18" x 25"
18"
9"
6.00
24 x 1/2" x 24
1/2"
*
23" x 28 1/2"
20"
10"
*-
Chamber size not recommended with given firing rate
1. Listed air cone size is a general recommendation for the given firing rates, this can vary
depending on the different sized baffles and air handling parts that are used within the burner.
