AC PRO 4HP18V36P
At Delaware energy prices this heat pump costs $22.69 per million BTU of heat. The register lists it in 192 configurations, and the ratings below are the range across all of them.
Computed from electricity at 19.29¢/kWh, the EIA average for DE 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 Delaware 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 | 19.00 (16.00–19.00 across 192 configurations) SEER2 |
|---|---|
| SEER2 (cooling efficiency) | 19.0 |
| HSPF2 (heating efficiency) | 8.5 |
| COP at 5 °F | 2.18 |
| Nominal cooling capacity | 34,800 BTU/h |
| Capacity kept at 5 °F | 71% of its 47 °F rating |
| ENERGY STAR cold-climate | No |
| Fuel | Electricity |
| Type | HP - Split System |
| Refrigerant | R-410A (GWP:2088) |
| AHRI reference | 206905644 |
| Published configurations | 192 |
| Certified | 2026-06-03 |
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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.