How we research, calculate and review

Who we are

HeatPumpWise is an independent tools-and-guides site. We are not a manufacturer or a single contractor, so our guidance isn't tied to selling you a particular brand. When you request quotes, we connect you with vetted local installers; that's how the site stays free.

Our sizing & cost methodology

Our calculators use transparent, standards-based rules of thumb:

• Sizing estimates heating load from floor area, climate zone, insulation and ceiling height using BTU-per-square-foot factors consistent with US DOE and ENERGY STAR guidance, then converts to tons (12,000 BTU/hr = 1 ton).
• Cost uses typical installed price ranges by system type, adjusted by regional cost indices and any state or utility rebates (the federal 25C/25D credits expired Dec 31, 2025).
• Savings compares your home's estimated annual heating energy delivered by your current system versus a heat pump at a given HSPF, using your local fuel and electricity prices.
• Balance point interpolates manufacturer AHRI capacity ratings (47°F and 17°F) against your home's heat-loss rate.

Editorial standards (E-E-A-T)

• Show the math. Every result lists its inputs and a breakdown so you can check it.
• Cite authorities. Guides link to primary sources — US DOE, ENERGY STAR, the IRS and AHRI — not marketing pages.
• Stay current. Pages carry a "last updated" date; we revise when programs (like tax credits) change.
• No fabricated reviews. We don't post fake testimonials or pretend to be a licensed contractor.
• Independence. Brand mentions are informational; we don't rank by who pays us.

Primary sources we rely on

Corrections

Spotted an error or an out-of-date rebate figure? We want to fix it — accuracy is the whole point. (Add your contact/correction channel here before launch.)

This page is part of our commitment to transparency. Estimates only — not a substitute for professional HVAC design.