Water Heater Sizing and Cost Guide

Tank gallons, tankless GPM, UEF, and payback in one place.

Water heater calculators with the math shown, in plain English.

About
Contact
Create an account
Disclosure
Guides
Methodology
Privacy
Reset your password
Sign in
Terms
Verify your email
Workspace

Screening estimates only. Verify nameplate data, groundwater temperatures, local rates and installer quotes; gas, venting and electrical installations must meet the adopted code and be done by a licensed contractor.