Find the right BTU capacity and heat pump size for your home
How it works: Heat pump sizing uses a Manual J-inspired calculation that accounts for your home's square footage, ceiling height, climate zone, insulation quality, occupancy, sun exposure, and HVAC age. Undersizing leads to cold winters and sky-high bills. Oversizing causes short-cycling and poor humidity control.
Who it's for: Homeowners upgrading to a heat pump and HVAC contractors quoting residential jobs.
Your Home
Climate zone: Moderate (Zone 4)
Recommended Heat Pump Size
Base BTU Load
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after all adjustments
Recommended BTU
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with 15% safety margin
Heat Pump Size
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tons (12,000 BTU = 1 ton)
Equipment Class
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typical system tier
Cost & Efficiency Estimates
Estimated Equipment Cost
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installed cost range — depends on brand, efficiency rating (SEER2/HSPF2), and regional labor rates
* This calculator provides estimates for informational purposes only. Actual heat pump sizing must be confirmed by a licensed HVAC contractor using Manual J/D calculation methods, not this tool. QuikCalc may earn a commission from affiliate links above at no additional cost to you. See our privacy policy.
Heat pump cost estimates assume mid-tier efficiency (SEER2 16–18, HSPF2 8–9). High-efficiency models (SEER2 22+, HSPF2 10+) may cost 40–60% more. Always get 3 contractor bids.
Results are estimates based on simplified Manual J methodology. Building envelope, ductwork condition, window quality, and regional utility rates significantly affect actual requirements. Consult a certified HVAC contractor for a load calculation before purchasing equipment.