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Gas-Fired Furnaces
Up to 80% AFUE
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58STA
| Size |
Rated Heating
Input (Btuh)*
Upflow/Downflow
Horizontal |
Rated Heating
Output (Btuh)*
Upflow/Downflow
Horizontal |
AFUE* % |
Selectable Cooling CFM
@ 0.5 ESP Max/Min† |
Vent
Dia
(in.) |
Casing
Width
(in.) |
Approx
Ship
Weight
(lbs) |
| 045–1-08 |
44,000 |
35,000 |
80.0 |
845/620 |
4 |
14 3/16 |
104 |
| 045–1-12 |
44,000 |
36,000 |
80.0 |
1160/1040 |
4 |
14 3/16 |
107 |
| 070–1-08 |
66,000 |
53,000 |
80.0 |
900/600 |
4 |
14 3/16 |
111 |
| 070–1-12 |
66,000 |
54,000 |
80.0 |
1200/1050 |
4 |
14 3/16 |
115 |
| 070–1-16 |
66,000 |
tba |
80.0 |
tba |
4 |
17 1/2 |
126 |
| 090–1-14 |
88,000 |
71,000 |
80.0 |
1385/1195 |
4 |
17 1/2 |
127 |
| 090–1-16 |
88,000 |
71,000 |
80.0 |
1720/1375 |
4 |
21 |
140 |
| 090–1-20 |
88,000 |
tba |
80.0 |
tba |
4 |
21 |
146 |
| 110–1-12 |
110,000 |
89,000 |
80.0 |
1355/1080 |
4 |
17 1/2 |
135 |
| 110–1-16 |
110,000 |
89,000 |
80.0 |
1680/1310 |
4 |
21 |
146 |
| 110–1-22 |
110,000 |
89,000 |
80.0 |
2200/1795 |
4 |
21 |
152 |
| 135–1-16 |
132,000 |
107,000 |
80.0 |
1710/1380 |
5‡ |
21 |
149 |
| 135–1-22 |
132,000 |
107,000 |
80.0 |
2150/1715 |
5‡ |
24 1/2 |
163 |
| 155–1-20 |
154,000 |
125,000 |
80.0 |
2230/1695 |
5‡ |
24 1/2 |
170 |
* Capacity and ratings in accordance with U.S. Government DOE test procedures with isolated combustion system.
De-rate heating input in high fire (only ) for downflow and horizontal applications by 1,000 Btuh per burner.
† Listed CFM is for single-speed cooling.
‡ 4-inch vent connection in all funaces.
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