Heat Pump Sizing Calculator

Climate-zone-aware sizing combined with installed-cost estimates and the actual federal incentive math: Sections 25C and 25D tax credits plus the income-tested HEEHRA rebate up to $8,000. Plus annual operating cost compared to your current furnace.

What this tool does

• IECC climate zones 1–8 with state lookup and design temperatures
• Federal tax credits (25C $2k cap, 25D 30% uncapped for geothermal)
• HEEHRA rebate eligibility by income tier
• Operating cost vs gas, oil, propane, electric, or wood
• Simple payback period and 15-year savings projection

heat pump electrification IRA home improvement HVAC energy

About Help Toolz

Help Toolz is a collection of free browser tools that solve real problems without signup walls, ad-stuffed listicles, or affiliate-link articles. Every tool runs entirely in your browser — your inputs never leave your device.

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