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Free Water Heater Tools
Run the numbers on your home before you talk to anyone. Each tool shows its results right away, and you can send them to us for a free virtual estimate if you want a second opinion.
01_CALCULATORS
Calculators for SoCal Homeowners
Built around Southern California fixture standards and US units.
TL_01
Household Water Usage Calculator
Estimate how many gallons your household uses each month, how much of it is hot water, and what CA-standard fixtures could save you.
Open calculatorSIZING_A_TANKLESS_UNIT?
Size by Gallons per Minute
Tankless heaters are sized by the fixtures you run at the same time and how much the water needs to be heated. Our sizing guide walks through the math step by step.
Read the sizing guide
NEXT_STEP: FREE_VIRTUAL_ESTIMATE
Prefer a Number From a Specialist?
Send a few photos of your water heater, vent and gas line and get a written price range during business hours. No hidden admin fees.
- Factory-certified technicians
- No hidden admin fees
- Mon–Fri, 9 AM–5 PM