Weathermaker 37MARAQ30AA3
At Kentucky energy prices this heat pump costs $15.01 per million BTU of heat. The register lists it in 2 configurations, and the ratings below are the range across all of them.
Computed from electricity at 14.26¢/kWh, the EIA average for KY in June 2026. A kilowatt-hour is 3412 BTU. This is a rate times a rating, not a prediction of your bill.
Against the alternatives, at Kentucky prices
Dollars per million BTU delivered into the house. Lower is cheaper to run; it says nothing about what the equipment costs to buy or install.
What the register says
| Rating | 20.50 (17.00–20.50 across 2 configurations) SEER2 |
|---|---|
| SEER2 (cooling efficiency) | 20.5 |
| HSPF2 (heating efficiency) | 9.5 |
| COP at 5 °F | 2.10 |
| Nominal cooling capacity | 30,000 BTU/h |
| Capacity kept at 5 °F | 68% of its 47 °F rating |
| ENERGY STAR cold-climate | No |
| Fuel | Electricity |
| Type | HP - Mini or Multi Split |
| Refrigerant | R-454B (GWP:470 | Lower GWP) |
| AHRI reference | 215413163 |
| Published configurations | 2 |
| Certified | 2025-11-24 |
Priced in your state
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Sold under other names
The same model number certified under another brand. If you are holding quotes for two of these, you may be comparing the same unit twice.
Other Weathermaker heat pumps
The nearest by SEER2 rating.
- 37MHRAQ18AA3 20.30 SEER2
- 38MARBQ30AA311 20.10 SEER2
- 37MBRAQ36AA3 20.00 SEER2
- 38MARBQ30AA3 20.00 SEER2
- 38MHRCQ30AA3 21.00 SEER2
- 38MTRAQ27CA3 20.00 SEER2
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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. This page is a record of a published certification; it is not an endorsement, not a quote, and not advice. Corrections.