Right-Size Your Heat Pump
Is a home well enough sealed and insulated for heat pump success?
Is the heating capacity of a proposed heat pump system appropriate for a home?
HEAT serves as a fast and easy check on Manual J analysis.
Upload historical energy usage data from utility bills and provide basic information about your home.
HEAT uses your inputs and historical outdoor temperature data at the home's location to accurately estimate the home's overall heat loss rate and total design heating load.
Get clear charts that help with assessing a home's weatherization — i.e. is it ready for heat pumps — and properly sizing the heat pump for its heating needs.

Undersized heat pumps won't keep your home comfortable in cold weather. Oversized systems cost more and also cause comfort issues and waste energy.
HEAT uses proven engineering methods to analyze a home's heating requirements, helping homeowners get the right-sized system for optimal comfort and efficiency.
Start Your AnalysisThis tool was designed with energy coaches in mind, particularly volunteers from the HeatSmart Alliance who help homeowners navigate the heat pump conversion process.
Coaches use this tool to analyze a home's heating requirements, and provide guidance to their clients on evaluating heat pump proposals.
Learn more about HeatSmart Alliance coaches →