About Tankless Water Heaters

What is a Tankless Water Heater?

A tankless water heater, sometimes called an on-demand water heater, is a system that provides endless hot water without the need for a bulky storage tank. Instead of storing hot water, it only heats water as you need it. The only water it holds internally is in the heat exchanger.

How Does a Tankless Water Heater Work?

Unlike traditional water heaters with large tanks, tankless water heaters heat water instantly. When you turn on a hot water tap, cold water flows through the unit. Inside, either a gas burner or electric heating element quickly heats the water. The result is a constant, efficient supply of hot water for showers, dishwashing, laundry, and more.

Benefits of a Tankless Water Heater

Upgrading to a tankless water heater comes with several advantages:

  • More energy efficient than traditional tank water heaters

  • Lower operating costs and reduced energy bills

  • Longer lifespan, often lasting over 20 years

  • Replaceable parts for easier maintenance

  • Eliminates standby heat loss from traditional storage tanks

  • Provides unlimited hot water on demand

What Affects Tankless Water Heater Installation?

Proper installation is key to performance and safety. Factors that impact installation include:

  • Fuel type (gas vs. electric)

  • Climate and household water usage

  • Local building codes and permit requirements

  • Safety issues, especially with gas-fired models

Because installation requires professional expertise, it’s best to hire a licensed plumber who specializes in tankless water heater installation and repair.

How to Choose the Right Plumbing Contractor

When selecting a plumbing company to install or repair your tankless water heater:

  • Get a written estimate for costs

  • Ask for customer references

  • Check customer reviews on Yelp and Google

  • Make sure the contractor is licensed and insured

  • Confirm they handle all necessary permits

Expert Installation & Repair for Leading Tankless Brands

We service and install the industry’s leading tankless water heater brands. Whether you’re looking for a new high-efficiency system or need expert repair on your current unit, our team has hands-on experience with the most trusted names in water heating.

Here are some of the top brands we work with every day:

Yearly Maintenace Reminder

We’ll provide a flush/descaling service for your tankless water heater. Join our reminder list and we will send an email every year .

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Tankless Water Heater Repair & Plumbing

Lic# 1048143

office@tanklesswhplumbing.com

(626) 493-3019
(909) 913-2630
(714) 951-8771

10050 Bessie Ave,
El Monte, CA 91731

10040 Placer St. #B,
Rancho Cucamonga, CA 91730

5715 W Olympics Blvd, #105,
Los Angeles, CA 90036

325 Verdugo Way
Upland, CA 91786

14148 Mountain  Ave
Chino, CA 91710

4005 E Heritage  Ln
Ontario, CA 91761