ZERO ZMSB-30HVD-US
At Wyoming energy prices this heat pump costs $18.59 per million BTU of heat.
Computed from electricity at 15.24¢/kWh, the EIA average for WY 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 Wyoming 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 | 21.00 SEER2 |
|---|---|
| SEER2 (cooling efficiency) | 21.0 |
| HSPF2 (heating efficiency) | 8.2 |
| COP at 5 °F | 1.86 |
| Nominal cooling capacity | 30,000 BTU/h |
| Capacity kept at 5 °F | 61% of its 47 °F rating |
| ENERGY STAR cold-climate | No |
| Fuel | Electricity |
| Type | HP - Mini or Multi Split |
| Refrigerant | R-410A (GWP:2088) |
| AHRI reference | 209867863 |
| Certified | 2026-06-13 |
Priced in your state
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Other ZERO heat pumps
The nearest by SEER2 rating.
- Z3SOV-18HDM-US 21.00 SEER2
- Z4SOV-18HDMB-USHH 21.00 SEER2
- Z4SOV-27HDMB-USHH 21.00 SEER2
- ZMSB-24HV-USHH 21.00 SEER2
- Z4SOV-48HDMB-USHH 21.20 SEER2
- Z5SOV-48HDM-US 21.20 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.