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Data / ENERGY STAR / Ducted heat pumps / Willis

Willis ENERGY STAR certified ducted heat pumps: 14 models

Willis has 14 ENERGY STAR certified products in ducted heat pumps on the EPA's list as read on November 4, 2026, which puts it number 123 of 200 brands by model count. Its newest certification is FLEX60KUHR32, dated September 16, 2026.

SpecStream is the live web data engine for teams and agents. It reads the EPA's ENERGY STAR certified product lists, keyed on the ENERGY STAR Unique ID, and this page is that reading. Ask for the products you track by category, brand or rating, and each new certification arrives in your sheet, CRM, Slack or agent as the EPA publishes it.

Certified products
14
Newest certification
September 16, 2026
Brands in this category
200

Willis certified ducted heat pumps

Newest first. Each row links to the product's record in the EPA's open data portal.

ModelSEER2 (Btu/Wh)EER2 (Btu/Wh)HSPF2 (Btu/Wh)Indoor Unit Model NumberENERGY STAR IDCertifiedSource
FLEX60KUHR3218.211.210.5FLEXAH60KR323942663September 16, 2026data.energystar.gov
FLEX60KUHR321911.710FLEXAH48KR323942662September 16, 2026data.energystar.gov
FLEX48KUHR321911.710FLEXAH48KR323942661September 16, 2026data.energystar.gov
FLEX36KUHR321811.210FLEXAH36KR323942660September 16, 2026data.energystar.gov
FLEX36KUHR32181210FLEXAH24KR323942659September 16, 2026data.energystar.gov
FLEX24KUHR32181210FLEXAH24KR323942658September 16, 2026data.energystar.gov
FLEX48/60KUH16109FLEXAH48/60K3544274July 7, 2026data.energystar.gov
FLEX24/36KUH16109FLEXAH24/36K3436476June 29, 2026data.energystar.gov
PRT60KUH1710.68.33436475June 29, 2026data.energystar.gov
FLEX36KUHR3216118.5CC24R324515682June 9, 2026data.energystar.gov
FLEX36KUHR3216118.5CC36R324515681June 9, 2026data.energystar.gov
FLEX60KUHR3216119CC48R324515680June 4, 2026data.energystar.gov
FLEX60KUHR32169.89CC60R324515679June 4, 2026data.energystar.gov
HW-COND36K19.511.710.5HW-AHU36K4006852April 22, 2026data.energystar.gov

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Updated November 4, 2026. Read from ENERGY STAR certified product data, US Environmental Protection Agency (data.energystar.gov). Public domain data from the US EPA and the US Department of Energy. Products are listed as the EPA publishes them on the date this page was read, and the EPA can revise or withdraw a certification. A product is counted once, under the most specific list that holds it. For heat pumps each ENERGY STAR ID is one outdoor and indoor unit combination, so a model number can repeat. Brand names are as published. This page uses EPA data and is not endorsed or certified by the EPA or ENERGY STAR. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.