Observed arrival · 2026-08-31

Heat Pump Math, Without the Sales Pitch

heatpumpmath.com Observed source

Editorial interest 84/100 Selection signal · not a rating of the site

A state-specific calculator compares the running cost of heat pumps with gas, propane, oil, and electric resistance heat.

Landing page captured for the 2026-08-31 issue.

Field notes

The calculator turns fuel prices and equipment assumptions into the cost of delivering a unit of heat, then offers a monthly estimate after users add floor area and insulation quality. Its defaults average three EIA months, while editable fields accommodate household electricity and fuel prices. The page gives unusual prominence to electric-resistance backup: users can compare 0% and 25% backup shares to see how much commissioning assumptions change the result.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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