About WattFax

WattFax helps homeowners understand heat pump costs with real data — not generic estimates. We combine government data sources, crowdsourced installation quotes, and local labor rates to give you the most accurate picture of what a heat pump will cost in your area.

Our Data

Every number on WattFax comes from a verifiable source. We don't make up ranges or use "industry averages" without attribution.

• Labor rates: Bureau of Labor Statistics (BLS) OEWS data for HVAC Mechanics and Installers (SOC 49-9021), broken down by metro area.
• Electricity rates: U.S. Energy Information Administration (EIA) and NREL/OpenEI Utility Rate Database, by ZIP code.
• Climate zones: IECC 2021 climate zone assignments by county.
• Equipment specs: ENERGY STAR certified product database (50,000+ models) and NEEP cold-climate ASHP database.
• Rebates: Curated from DSIRE, EnergySage, Rewiring America, and state energy office websites.
• Real costs: 1,700+ crowdsourced installation quotes extracted from Reddit heat pump communities.

Why We Built This

Getting a heat pump quote is stressful. You don't know if $15,000 is a good deal or a ripoff. Online cost guides give ranges so wide they're useless ("$5,000 to $25,000"). We built WattFax to answer the simple question: what did other people in my area actually pay?

Contact

Questions, corrections, or feedback? Email hello@wattfax.com.