Cold Northeast & Upper Midwest
Design-day heating loads drive tonnage and backup heat choices; installer experience with cold-climate ratings is critical.
Heat Pumps · US homeowners
Heat pump sizing estimator for US homes
Get a screening-level tonnage range, installed cost band, and panel impact estimate before you collect HVAC quotes for ducted or ductless heat pump systems.
heat pump sizing calculatorHVAC tonnage estimatormini split sizing USAheat pump install cost calculator
Live MVP Calculator
Heat Pump Sizing Estimator
Estimate tonnage range and installed cost band from home size, climate, insulation, system type, and backup heat strategy. Use this before collecting installer quotes.
This is a screening tool, not a Manual J replacement. Always confirm sizing with a qualified HVAC designer.
How to use
Get a useful estimate in a few minutes
This tool is a screening calculator for US homeowners—not a substitute for licensed electrical, HVAC, or solar design work.
- Enter conditioned square footage and climate zone tendencies.
- Note insulation quality and system type (ducted vs mini-split).
- Indicate backup heat strategy in cold climates.
- Use results to compare contractor Manual J proposals—not as a final load calc.
Regional considerations across the United States
Climate, utility rates, housing stock, and outage patterns vary by region. Use these notes alongside your local quotes, permits, and installer guidance.
Mid-Atlantic & Midwest mixed climates
Moderate winters favor hybrid or dual-fuel strategies; rebate programs vary by state utility.
Pacific Northwest & mild West Coast
Heating-dominated but mild design temps; mini-splits are popular for partial-home retrofits.
Hot-humid South & Gulf
Cooling load and dehumidification drive sizing; existing duct condition affects retrofit vs mini-split paths.
Frequently asked questions
How many tons of heat pump do I need?
Rough screening often lands near 1 ton per 400–600 sq ft depending on climate and insulation, but Manual J load calculations are required for final sizing.
Do heat pumps work in cold US climates?
Modern cold-climate heat pumps perform well when sized correctly with a clear backup heat strategy for design-day temperatures.
Will a heat pump require a panel upgrade?
Large ducted systems and auxiliary heat strips can add significant electrical load—especially alongside EV charging on 100A services.
Next Step
Email yourself this estimate checklist
Save the assumptions you used so you can compare contractor quotes, product shortlists, and next-step guides.