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WaterFurnace W5SZ066BD1 (5 SERIES INDOOR SPLIT)
WaterFurnace · W5SZ066BD1
WaterFurnace W5SZ066BD1 (5 SERIES INDOOR SPLIT) appears in the U.S. EPA ENERGY STAR "Certified Geothermal Heat Pumps" dataset, which lists products whose manufacturers have certified them to the program's specification (record 3998625, certified 2025-02-24). EPA publishes these rated values for the listing: Product type Closed Loop Water-to-Air; COP rating 3.9; EER rating 20.2; Refrigerant type Other; Meets most efficient criteria Yes. The listing records ENERGY STAR certification and the rated values the manufacturer reported to EPA. It is not a determination that any building, installation or design complies with a code.
✓ Verified 2026-10-03
Specs on this page were checked against ENERGY STAR Certified Geothermal Heat Pumps (data.energystar.gov/d/acvd-5wvz) on 2026-10-03.
Specifications
| COP rating | 3.9 |
| EER rating | 20.2 |
| Product type | Closed Loop Water-to-Air |
| Refrigerant type | Other |
| Meets most efficient criteria | Yes |
Certifications & Standards
ENERGY STAR 3998625 Certified geothermal heat pump, 2025-02-24
Sustainability
No sustainability metrics on file for this product.