Maximize Hot Water
Load the laundry, start the dishes and still have enough hot water to enjoy a relaxing hot bath
As a trusted leader in water heaters, Rheem® has revolutionized its tankless gas portfolio to offer a complete range of tankless solutions. You’ll enjoy the comfort and convenience of continuous hot water while saving energy and money from the brand you trust.
Enjoy the same continuous flow of hot water as well as high performance in a new modern design with Rheem® CRTGH Series Super High Efficiency Condensing Tankless Water Heaters. Energy savings, continuous hot water and the industry’s most comprehensive 15-year warranty10 mean there’s never been a better time to go tankless.
Save annually on energy costs over a standard 50-gallon gas residential tank water heater11
Increase valuable usable space in your home with a single unit that’s up to 20% smaller lighter12, and can be installed in more places with an available outdoor conversion kit
Our exclusive water saving setting conserves water by reducing the amount of water flow at the tap until the set temperature is reached—no more wasted water while waiting for it to heat up13
Leakguard™ Leak Detection and Prevention system with auto shut-off detects leaks and shuts off the flow of water.
The CRTGH Series uses up to 34% less energy14 and improves air quality by reducing greenhouse gas NOx emissions by up to 65% for a cleaner environment15
Wi-Fi models qualify as Sustainability Standouts, which means they meet a stringent set of our company’s internally defined sustainability standards
Exclusive Overheat Film Wrap shuts down the unit if the heat exchanger overheats for added safety in your home7
Enjoy complete control of your water heater—from adjusting water temperature to tracking energy usage—all from a smart phone8 (select models only)
Best-in-class turn down ratio keeps outlet water temperature close to the set point
Exclusive Hot Start Programming™ keeps the water heater in a ready state (burner does not completely shut off) for five minutes between back-to-back usage to minimize cold-water bursts1
Front View
Back View
Install Example
Install Example
Install Example
Install Example
The New CRTGH High Efficiency Tankless
Water Heater
The new Rheem® IKONIC™ S- and SR-Series Condensing Tankless Water Heaters make it easy to decide to go tankless. In addition to providing continuous hot water, energy savings and the industry’s most comprehensive warranty, they offer a recirculation model for the ultimate convenience—and water savings—of no-wait hot water. Plus, exclusive built-in features and rebate eligibility help keep upfront costs down.
Save up to 12,000 gallons of water from being wasted down the drain annually with the built-in recirculation pump2(SR-Series models only)—that’s over $1,000 in water costs over 15 years
Install in more locations with the industry-best 1/2″ side-to-side clearance for tight spaces3
Rheem® IKONIC™ provides maximum install flexibility by allowing room air intake, common venting of two units, flex venting and 1/2″ gas line compatibility4 for a better tank replacement option
The ENERGY STAR®-certified and best-in-class energy efficiency5 of Rheem® IKONIC™ helps you save up to 36% per year in energy costs6
Exclusive Overheat Film Wrap shuts down the unit if the heat exchanger overheats for added safety in your home7
Enjoy complete control of your water heater—from adjusting water temperature and tracking energy usage to setting recirculation modes—all from a smart phone8(SR-Series models only)
Shower, do the dishes and wash the laundry—all while reducing up to 65% of NOx emissions for Ultra Low NOx performance9
Advanced design enables Rheem® IKONIC™ to work up to 10,200 feet above sea level
Exclusive Hot Start Programming™ keeps the water heater in a ready state (burner does not completely shut off) for five minutes between back-to-back usage to minimize cold-water bursts1
Rheem® IKONIC™ Super High Efficiency Condensing Tankless Water Heater with Recirculation
Rheem ThermaForce Super High Efficiency Condensing Tankless Water Heaters provide energy efficiency
and high performance in a compact European design. Plus, they’re made to stand up to extreme hard
water applications6—so you can count on having continuous hot water when you need it.
Aluminum block heat exchanger with integrated copper waterways ensures maximum heat transfer with
minimal heat loss
Enhances cascade system efficiency with multiple units operating at low fire versus one unit
operating at high fire to satisfy demand
Uses up to 32% less energy than a standard 50-gallon tank water heater to minimize your impact on
the environment7
65% reduction in NOx emissions compared to standard gas tank2 for a cleaner environment
Make it easy to diagnose and service with common parts for all ThermaForce units
A total of four moving parts, unmatched in the industry, simplifies servicing—fan, gas valve,
damper and bypass valve
Provides operational status, troubleshooting information and allows setting adjustments
Provides installation flexibility with moveable combustion air intake (left/right), ability to flex
vent in existing B vent and 2″ inlet and exhaust with band connections
Extra-long pipe fittings with notched sides for easy gripping with a wrench
Cast aluminum heat exchanger protects copper waterways and minimizes lime formation
Enjoy peace of mind with a 15-year heat exchanger (replace entire unit not just heat exchanger) and
5-year parts warranty8
Saves up to 33% per year in energy costs over a standard 50-gallon gas residential tank water
heater
Front View
Back View
Inside View
Install Example
Install Example
Family in town, dog needs a bath, laundry day? With continuous hot water, you can do it all and still have all the hot water you need for a nice, relaxing soak in the tub.
With integrated WiFi in some tankless models and upgrade modules available for others, homeowners can adjust temperatures, check usage, receive alerts, program a schedule, update product settings and more. It’s all possible with Rheem EcoNet® Enabled tankless water heaters and the EcoNet® App.8
Adjust water set temperature to balance hot water needs via the EcoNet App
View weekly, monthly and yearly energy consumption reports
Save energy on water heating costs while you’re away by pausing your recirculation schedules and resuming them when you return
Remotely set and schedule the recirculation modes and your desired temperature
Easily check and adjust the water temperature and start or stop the recirculation pump as needed
Schedule the recirculation pump to run, at the times you need it, directly from the app
Ready to enjoy continuous hot water with a Rheem Tankless Water Heater?
Use and Care Manual
