# Free Water Heater Tools & Calculators | Total Tankless

> Free tools for Southern California homeowners: estimate household water and hot water use, and see what efficient fixtures could save before you upgrade.

URL: https://socaltotaltankless.com/tools/

TOOL\_KIT · FREE · NO SIGN-UP

# 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 calculator

[Household Water Usage Calculator →](/tools/water-usage-calculator/)

SIZING\_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

[/guide/what-size-tankless-water-heater-do-i-need/ →](/guide/what-size-tankless-water-heater-do-i-need/)

![Technician finishing a clean tankless water heater installation in a Southern California garage](/images/misc/factory-certified-technician-finishing-a-clean-wal.webp)

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.

Get a Free Virtual Estimate

[/contact/ →](/contact/)

 

Call (301) 555-8979

[tel:+13015558979 →](tel:+13015558979)

-   Factory-certified technicians
-   No hidden admin fees
-   Mon–Fri, 9 AM–5 PM