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HomeThermaForce FT
INNOVATION

Whole home heating solutions

The combi boiler and boiler products meet a stringent set of our company's internally defined sustainability standards.
Rheem's two advanced boiler platforms offer unmatched home comfort and efficiency. From cutting-edge technology to cost-effective comfort, both the Rheem® FT™ Series and Rheem® ThermaForce® combi boilers and boilers offer perfect solutions for your home. Explore our boilers today.
Innovative technology
A fire tube heat exchanger (FT Series) and a patented labyrinth heat exchanger (ThermaForce) deliver up to 96% AFUE for exceptional energy efficiency
Earth-friendly operation
Enhances air quality by reducing greenhouse gas NOx emissions by up to 75% compared to standard boilers
Cascading
Connect up to four units (FT Series) or eight units (ThermaForce) for enhanced performance, cost savings and faster installation—no Wi-Fi required
Ultimate serviceability
With just two to four moving parts on FT Series and four to five on ThermaForce units, servicing is faster and easier
FT SERIES
2-in-1 design for space and water heating, plus 4-zone control
The Rheem® FT™ Series Super High-Efficiency Condensing Combi Boiler (coming soon) delivers reliable space heating and continuous hot water in a compact, durable design—ensuring comfort and efficiency for your entire home. This model is best suited for homes with multiple heating zones requiring precise control.

Easy setup & maintenance - Enjoy simplified setup, calibration, diagnostics, maintenance and troubleshooting on the intuitive touchscreen display System monitoring - Access real-time operational data 4-zone control - Manage four-zone pumps with ability to assign heating loads to each zone Boiler pump control - Allows easy scheduling of the boiler pump Color-coded alerts - Shows quick visual status notifications on the touchscreen display Historical data logs - Access past performance insights on the touchscreen display USB port - Easy connection to computer and web-based portal for fast software installs and error log downloads Cascade capability - Control up to four boilers seamlessly on the touchscreen display

Reduces install time and costs

Ensures superior heat transfer, corrosion resistance and durability

Manages both space heating and domestic hot water production in one compact unit

Transfers heat from the boiler to domestic hot water within the combi block

Makes it easy to diagnose and service with common parts

Best-in-class turn down ratio keeps outlet water temperature close to set point

Sealed control compartment protects components from corrosion

Automatically adjusts space heating set point with outdoor conditions

PVC / CPVC / PP approved with vent lengths up to 50' with 2" and 170' with 3"

Up to 95% AFUE

Uses less energy compared to standard units

One appliance instead of two (boiler and water heater)
FT SERIES
Condensing gas boiler delivers performance, efficiency & intuitive control
The Rheem® FT™ Series Super High-Efficiency Condensing Boiler offers reliable home heating and continuous hot water in a compact design. It's perfect for residential applications like primary space heating, radiant floor systems, baseboard heating and snow melt systems. The FT Series boiler can easily be paired with an indirect tank for domestic hot water.

Easy setup & maintenance - Enjoy simplified setup, calibration, diagnostics, maintenance and troubleshooting on the intuitive touchscreen display System monitoring - Access real-time operational data 4-zone control - Manage four-zone pumps with ability to assign heating loads to each zone Boiler pump control - Allows easy scheduling of the boiler pump Color-coded alerts - Shows quick visual status notifications on the touchscreen display Historical data logs - Access past performance insights on the touchscreen display USB port - Easy connection to computer and web-based portal for fast software installs and error log downloads Cascade capability - Control up to four boilers seamlessly on the touchscreen display

Ensures superior heat transfer, corrosion resistance and durability

Makes it easy to diagnose and service with common parts

Best-in-class turn down ratio keeps outlet water temperature close to set point

Sealed control compartment protects components from corrosion

Automatically adjusts space heating set point with outdoor conditions

PVC / CPVC / PP approved with vent lengths up to 50' with 2" and 170' with 3"; Plus, fuel conversion kits are included with the boiler

Boiler provides high-efficiency domestic hot water when paired with indirect tank

Up to 95% AFUE

Uses less energy compared to standard units
thermaforce
2 in 1 Design for Space and Water Heating
Delivering both space heating and domestic hot water in a compact, sleek European design, the Rheem ThermaForce Super High Efficiency Condensing Combi Boiler makes it easy to heat your entire home and enjoy continuous hot water.

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 less energy compared to standard units

Reduces NOx emissions up to 75% compared to standard efficiency boilers 1

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 boiler pump

Provides operational status, troubleshooting information and allows setting adjustments

Extra-long pipe fittings with notched sides for easy gripping with a wrench

Uses less electricity than a standard pump

Adjusts the boiler supply temperature automatically based on outdoor temperature fluctuations

Up to 96% AFUE and ASME-rated 3

With one appliance instead of two (boiler and water heater)

The only condensing combi that can be cascaded for both space heating and domestic hot water
thermaforce
Condensing Boilers Offer Efficient Space Heating
Making it easy to heat your entire home, the Rheem ThermaForce Super High Efficiency Condensing Boiler delivers hot water for hydronic heating applications like radiant floors, baseboards, air handlers and more. High performance and reliable temperature control mean you can relax in consistent comfort.

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 less energy compared to standard units

Reduces NOx emissions up to 75% compared to standard efficiency boilers 1

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 boiler pump

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

Uses less electricity than a standard pump

Adjusts the boiler supply temperature automatically based on outdoor temperature fluctuations

Up to 96% AFUE and ASME-rated3
Did You Know?
The Rheem FT Series boilers and combi boilers are both eligible for federal tax credits, making it even easier for you to save.
A whole home heating solution
Make the most of your home comfort with the FT Series and ThermaForce platforms, designed to provide super-high efficiency condensing space heating and domestic hot water, saving you space and energy.
Personalized service
Our service is tailored for each individual and their requirements
Get financing
Get the equipment you need on any budget with Residential KwikComfort ® Financing
Tax credits & rebates
Learn about available tax credits and rebates to reduce your costs
Enjoy high-efficiency space heating, water heating or both
Bring home the comfort and savings of the Rheem FT Series and ThermaForce platforms.
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