A Honeywell Home T3R programmable thermostat on a table in a living room.

The T3 programmable thermostat

Compatible with multiple boilers and heating systems, the T3 makes installation easy for HVAC professionals. Its simple programming is also a compelling asset for homeowners.

The T3 programmable thermostat

Developed to provide intuitive heating time and temperature control, featuring a wealth of functionalities designed to make it the preferred choice for a diverse range of installations.

heat pump icon

Designed for compatibility.

T3 programmable thermostats are designed to work with on/off and OpenTherm® compatible heating and cooling appliances, such as boilers, heat pumps and district heating systems. Featuring both wired and wireless versions, they're designed to suit a variety of homes, and for a multitude of system applications.

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Cost effective simple installation

The T3 series aims to make your everyday life easier. Fast commissioning saves a lot of time and energy, especially in mass installations. The wireless version comes with an easy-to-install, easy-to-commission boiler control module. For the wired version, simply install the wall-mounting frame, connect the wires, and it's ready to go.

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Programmable, adjustable, customisable

Resideo understands that life is unpredictable. So opt for a pre-set 7-day program and easily change the temperature setting when plans change. You can easily select the pre-programmed 7 day and 5/2 day scheduling with up to 4 time schedules.

Parent reading a book with a child.

Compatible with heat pumps

Added parameters now means the T3 programmable thermostat works with heat pumps - giving your customers an easy to use, reliable option for their low carbon system.

Product comparison Table

Compare

REFERENCE NUMBER

Y3H710RF0053

T3H110A0066

T3H310A0045

COLOUR OPTIONS

White

White

White

HEAT/COOL

Heat only Heat only Heat only

HONEYWELL HOME PRODUCT COMPATIBILITY

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HCC100

APPLIANCE COMPATIBILITY*

Compatible with 24-230V on/off appliances such as gas boilers, combi-boilers, zone valves, wet underfloor heating and heat pumps.

Compatible with 24-230V on/off appliances such as gas boilers, combi-boilers, zone valves, wet underfloor heating and heat pumps.

OpenTherm® boilers

WARRANTY**

5 years

5 years

5 years

*Compatibility with common appliances that support OpenTherm® or on/off control. Compatibility with heat pumps based on commonly used heat pump performance profiles in 2023.
** See terms at https://www.resideo.com/gb/en/resources/5-year-warranty-for-trade-professionals/
Installer taking a training course on Resideo Academy.

Fit the T3 correctly with Resideo Academy

Explore how to correctly mount, install and use the T3 programmable thermostat by enrolling on a Resideo Academy training course. Set yourself apart from the competition and give your customers the service they deserve.

Resideo Academy

Get the right training for the right job, delivered the right way

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