Select a Country

Find a Professional in your Area

Find a Professional

When you need a smart, dependable contractor or plumber, count on our team of independent professionals for your heating, cooling and water heating needs.

Tankless Water Heaters

Tankless Water Heaters

Tankless Water Heaters

Tankless Water Heaters


Maximize your savings, convenience and hot water with new Rheem® Tankless Water Heaters (NG High Efficiency models only)

blue icon

Maximize Hot Water

Load the laundry, start the dishes and still have enough hot water to enjoy a relaxing hot bath

blue icon

Enjoy Instant Hot Water

Choose a Tankless Water Heater With Built In Recirculation Pump or add a recirculation pump kit for instant hot water at the faucet

blue icon

Minimize Cold Water Bursts

Operates at a sound level just above a whisper—in other words, you won’t even notice it’s on

blue icon

Save Energy

Tankless water heaters only produce hot water when you need it, so they save energy and money all the time

tankless water heater

Compare Standard Tank-Type &
Rheem Tankless Solutions

The Rheem Tankless line makes it easy to replace a traditional tank while delivering greater energy efficiency,
exceptional cost savings, water savings and long-term dependability.

Rheem High Efficiency Tankless With Built In Recirculation Pump Standard 50-Gallon Gas Tank-type
Continuous Hot Water Not Continuous
Instant Hot Water
Size 28-3/4″H x 17-1/4″W x 14-3/4″D 60″H x 21″W x 21″D
Installation Location Indoor Outdoor
Digital Display
Warranty 12 Years 6 Years
Water Savings Up to 12,000 gallons

Rheem High Efficiency Tankless Options

Tankless Water Heater Features

Why choose a Rheem Tankless solution? Rheem Tankless Water Heaters offer the savings, comfort and protection you need.

  • Save Money

    Rheem High Efficiency Tankless Gas Water Heaters saves you money over 12 years1, and some qualify for rebates

  • Save Space

    Compact sizes and outdoor models increase valuable usable space in your home

  • Save on Installation

    1/2″ gas line compatibility (all models), low-cost PVC venting (High Efficiency models) and built-in condensate neutralizer3 (select High Efficiency models only) save installation time and money4

  • Save Water

    Save up to 12,000 gallons2 of water per year with a Rheem Tankless Water Heater with Built In Recirculation Pump

  • Stay Safe

    Exclusive Overheat Film Wrap shuts down the unit if the heat exchanger overheats for added safety in your home5

  • Protect Your Home

    Available EcoNet® WiFi Kits send mobile maintenance reminders and detect and alert you to water leaks after shutting off water and gas to the unit (indoor models only5).




Advanced Protection
Simple Savings

EcoNet® now available—you can add EcoNet capability to a Rheem Tankless Gas Water Heater produced 2010 or later, or purchase a Tankless Gas Water Heater with EcoNet Built-in to enjoy:

  • Leak detection with auto shut-off7 – to protect your home and belongings
  • Integration with Wink® and Nest®
  • Mobile temperature control, alerts and reminders5 – for total control over your home comfort
  • Notifications you can forward to your plumber – for faster, easier repairs

Go Tankless

Ready to enjoy continuous hot water with a Rheem Tankless Water Heater?