Westinghouse heat pumps
17 heat pumps listed under Westinghouse.
| Model | SEER2 | Costs to run |
|---|---|---|
| WHZ09SZA21S | 27.50 | $17.47 per million BTU of heat |
| WHZ12SZA21S | 23.50 | $18.71 per million BTU of heat |
| WHS09SZB21S | 22.50 | $20.38 per million BTU of heat |
| WHP18SZA21S | 22.50 | $21.33 per million BTU of heat |
| WHP24M3A21S | 22.00 (21.00–22.00 across 2 configurations) | $20.27 per million BTU of heat |
| WHP09SZA21S | 22.00 | $20.38 per million BTU of heat |
| WHP36M4A21S | 21.00 (19.50–21.00 across 2 configurations) | $20.38 per million BTU of heat |
| WHP18M2A21S | 21.00 (19.00–21.00 across 2 configurations) | $19.31 per million BTU of heat |
| WHU18SZA21S | 20.50 | $18.34 per million BTU of heat |
| WHU12SZA21S | 20.50 | $19.31 per million BTU of heat |
| WHU09SZA21S | 20.50 (18.00–20.50 across 2 configurations) | $18.34 per million BTU of heat |
| WHP24SZA21S | 20.50 | $21.33 per million BTU of heat |
| WHS18SZB21S | 20.00 | $18.71 per million BTU of heat |
| WHP42M5A21S | 20.00 (18.00–20.00 across 2 configurations) | $20.49 per million BTU of heat |
| WHS30SZB21S | 19.00 | $22.93 per million BTU of heat |
| WHU24SZA21S | 18.50 | $18.34 per million BTU of heat |
| WHM48SZA21S | 15.55 | $21.45 per million BTU of heat |
Computed from electricity at 18.34¢/kWh, the EIA average for US in June 2026. A kilowatt-hour is 3412 BTU. 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.