Navien boilers
28 boilers listed under Navien.
| Model | AFUE | Costs to run |
|---|---|---|
| NFB700-200F | 96.00 | $24.20 per million BTU of heat |
| NFB700-200 | 96.00 | $24.20 per million BTU of heat |
| NFB700-150F | 96.00 | $24.20 per million BTU of heat |
| NFB700-150 | 96.00 | $24.20 per million BTU of heat |
| NFB700-110F | 96.00 | $24.20 per million BTU of heat |
| NFB700-110 | 96.00 | $24.20 per million BTU of heat |
| NCB700-250/150 | 96.00 | $24.20 per million BTU of heat |
| NCB700-240/130 | 96.00 | $24.20 per million BTU of heat |
| NCB700-240/110 | 96.00 | $24.20 per million BTU of heat |
| NCB700-190/080 | 96.00 | $24.20 per million BTU of heat |
| NCB700-190/060 | 96.00 | $24.20 per million BTU of heat |
| NHB-150H | 95.00 | $24.45 per million BTU of heat |
| NHB-150 | 95.00 | $24.45 per million BTU of heat |
| NHB-110H | 95.00 | $24.45 per million BTU of heat |
| NHB-110 | 95.00 | $24.45 per million BTU of heat |
| NHB-080H | 95.00 | $24.45 per million BTU of heat |
| NHB-080 | 95.00 | $24.45 per million BTU of heat |
| NHB-055H | 95.00 | $24.45 per million BTU of heat |
| NHB-055 | 95.00 | $24.45 per million BTU of heat |
| NFC-250/200H | 95.00 | $24.45 per million BTU of heat |
| NFC-250/175H | 95.00 | $24.45 per million BTU of heat |
| NFB-200H | 95.00 | $24.45 per million BTU of heat |
| NFB-175H | 95.00 | $24.45 per million BTU of heat |
| NCB-250/150H | 95.00 | $24.45 per million BTU of heat |
| NCB-240/130H | 95.00 | $24.45 per million BTU of heat |
| NCB-240/110H | 95.00 | $24.45 per million BTU of heat |
| NCB-190/080H | 95.00 | $24.45 per million BTU of heat |
| NCB-190/060H | 95.00 | $24.45 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.