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Viessmann 100-WA-AP1T052038 (Vitocal 100-WA)
Viessmann · 100-WA-AP1T052038
Viessmann 100-WA-AP1T052038 (Vitocal 100-WA) 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 4611376, certified 2026-05-11). EPA publishes these rated values for the listing: Product type Open Loop Water-to-Air; COP rating 5.1; EER rating 29.4; 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 | 5.1 |
| EER rating | 29.4 |
| Product type | Open Loop Water-to-Air |
| Refrigerant type | Other |
| Meets most efficient criteria | Yes |
Certifications & Standards
ENERGY STAR 4611376 Certified geothermal heat pump, 2026-05-11
Sustainability
No sustainability metrics on file for this product.