Comfort-Aire furnaces
15 furnaces listed under Comfort-Aire.
| Model | AFUE | Costs to run |
|---|---|---|
| GUH97T045B3MP | 97.00 | $23.95 per million BTU of heat |
| GUH97T070B3MP | 97.00 | $23.95 per million BTU of heat |
| GUH97T090C3MP | 97.00 | $23.95 per million BTU of heat |
| GUH97T090C5MP | 97.00 | $23.95 per million BTU of heat |
| GUH97T110C5MP | 97.00 | $23.95 per million BTU of heat |
| GUH97T135D5MP | 97.00 | $23.95 per million BTU of heat |
| GUH96C045B3MP* | 96.60 | $24.05 per million BTU of heat |
| GDD96C045B3MP* | 96.00 | $24.20 per million BTU of heat |
| GDD96C070B4MP* | 96.00 | $24.20 per million BTU of heat |
| GDD96C090C4MP* | 96.00 | $24.20 per million BTU of heat |
| GDD96C110C5MP* | 96.00 | $24.20 per million BTU of heat |
| GUH96C070B3MP* | 96.00 | $24.20 per million BTU of heat |
| GUH96C090C4MP* | 96.00 | $24.20 per million BTU of heat |
| GUH96C110C5MP* | 96.00 | $24.20 per million BTU of heat |
| GUH96C135D5MP* | 96.00 | $24.20 per million BTU of heat |
Computed from electricity at 18.34¢/kWh, the EIA average for US in June 2026 and gas at $24.09/Mcf for June 2026. A kilowatt-hour is 3412 BTU. Gas volume is converted to heat at 1.037 million BTU per thousand cubic feet, EIA's published average. This is a rate times a rating, not a prediction of your bill.
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Source: ENERGY STAR certified product data, published by the U.S. EPA and used with attribution. This is a register of certified models, not of every model on the market. ENERGY STAR is a registered mark of the U.S. EPA; this site is not affiliated with or endorsed by EPA or DOE.