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Thermostats / Sensors

Thermostats / Sensors

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    Honeywell YTHM5421R1010 Interface Mod, RedLINK /IAQw/Sensor

    Resideo

    MSRP: $160.07
    Now: $123.69
    Honeywell YTHM5421R1010 Interface Mod, RedLINK /IAQw/Sensorl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $160.07
    Now: $123.69
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    Honeywell YTH8321R1002 Vision Pro Thermostat with Rig

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    MSRP: $484.84
    Now: $374.65
    Honeywell YTH8321R1002 Vision Pro Thermostat with Rigl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $484.84
    Now: $374.65
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    Honeywell YTH6320R1023 Wireless Zoning Adapter Kit

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    MSRP: $388.06
    Now: $299.87
    Honeywell YTH6320R1023 Wireless Zoning Adapter Kitl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $388.06
    Now: $299.87
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    Honeywell YTH5320R1025 Wireless Zoning Adapt Kit Non-Programmable

    Resideo

    MSRP: $357.77
    Now: $276.46
    Honeywell YTH5320R1025 Wireless Zoning Adapt Kit Non-Programmablel  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum...
    MSRP: $357.77
    Now: $276.46
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    Honeywell Y7355H1009 3H/3C W/Humidty Sensor W/Sensors

    Honeywell

    MSRP: $659.98
    Now: $509.99
    Honeywell Y7355H1009 3H/3C W/Humidty Sensor W/Sensorsl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $659.98
    Now: $509.99
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    Honeywell WRECVR Receiver For Tr Sensors

    Honeywell

    MSRP: $344.52
    Now: $266.22
    Honeywell WRECVR Receiver For Tr Sensorsl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $344.52
    Now: $266.22
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    Honeywell TP974A2000 1Or2Pipe D/A Temp Sensor 50/100F

    Honeywell

    MSRP: $590.02
    Now: $455.93
    Honeywell TP974A2000 1Or2Pipe D/A Temp Sensor 50/100Fl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $590.02
    Now: $455.93
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    Honeywell TP973B2171 Ra 1 Or 2 Pipe,60-90,Univ Cvr

    Honeywell

    MSRP: $465.27
    Now: $359.52
    Honeywell TP973B2171 Ra 1 Or 2 Pipe,60-90,Univ Cvrl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $465.27
    Now: $359.52
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    Honeywell TP973B2132 R/A 1Or2Pipe 60/90F W/Cover

    Honeywell

    MSRP: $311.62
    Now: $236.08
    Honeywell TP973B2132 R/A 1Or2Pipe 60/90F W/Coverl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements...
    MSRP: $311.62
    Now: $236.08
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    Honeywell TP973B2066 R/A 1Or2 Pipe 60-90F Singel Temp

    Honeywell

    MSRP: $321.88
    Now: $248.73
    Honeywell TP973B2066 R/A 1Or2 Pipe 60-90F Singel Templ  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $321.88
    Now: $248.73
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    Honeywell TP973A2223 Da,60-90F,Beige Cvr,1Or2Pipe

    Honeywell

    MSRP: $181.48
    Now: $140.24
    Honeywell TP973A2223 Da,60-90F,Beige Cvr,1Or2Pipel  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $181.48
    Now: $140.24
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    Honeywell TP973A2209 D/A 1Or2 Pipe 60-90F Tradline Kit

    Honeywell

    MSRP: $426.08
    Now: $329.24
    Honeywell TP973A2209 D/A 1Or2 Pipe 60-90F Tradline Kitl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $426.08
    Now: $329.24
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    Honeywell TP973A2084 15/30C 1Or2Pipe 1Temp No Cover

    Honeywell

    MSRP: $354.67
    Now: $274.06
    Honeywell TP973A2084 15/30C 1Or2Pipe 1Temp No Coverl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $354.67
    Now: $274.06
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    Honeywell TP972A2242 2-Pipe,Da 60-90F Tradeline Kit

    Honeywell

    MSRP: $396.79
    Now: $300.60
    Honeywell TP972A2242 2-Pipe,Da 60-90F Tradeline Kitl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $396.79
    Now: $300.60
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    Honeywell TP972A2226 Rev Act At 19Psi Dict At 14Psi

    Honeywell

    MSRP: $468.17
    Now: $354.68
    Honeywell TP972A2226 Rev Act At 19Psi Dict At 14Psil  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $468.17
    Now: $354.68
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    Honeywell TP972A2192 Ht/Cl Stat W/Cover Da-Ht Ra-Cl

    Honeywell

    MSRP: $602.22
    Now: $465.35
    Honeywell TP972A2192 Ht/Cl Stat W/Cover Da-Ht Ra-Cll  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $602.22
    Now: $465.35
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    Honeywell TP972A2143 Rev. Act At 19Psi Dir At 14Ps

    Honeywell

    MSRP: $523.22
    Now: $404.30
    Honeywell TP972A2143 Rev. Act At 19Psi Dir At 14Psl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $523.22
    Now: $404.30
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    Honeywell TP972A2036 2 Set Points 78Fmin Max72

    Honeywell

    MSRP: $463.57
    Now: $358.21
    Honeywell TP972A2036 2 Set Points 78Fmin Max72l  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $463.57
    Now: $358.21
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    Honeywell TP972A2010 Htg/Clng Stat. 2-Pipe,Celcius

    Honeywell

    MSRP: $687.65
    Now: $531.37
    Honeywell TP972A2010 Htg/Clng Stat. 2-Pipe,Celciusl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $687.65
    Now: $531.37
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    Honeywell TP971C2058 Tp971C2009 W/ Satin Chrome Cvr

    Honeywell

    MSRP: $498.60
    Now: $377.73
    Honeywell TP971C2058 Tp971C2009 W/ Satin Chrome Cvrl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $498.60
    Now: $377.73
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    MSRP: $498.60
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Thermostats and Sensors for HVAC Systems 

HVAC thermostats and furnace sensors are essential for regulating system performance, energy efficiency, and safety. These components monitor conditions such as temperature, pressure, and flame status, ensuring furnaces, air conditioners, and heat pumps operate correctly. Furnace Part Source offers a wide range of OEM furnace sensors and thermostats for both residential and commercial applications. 

Types of HVAC Thermostats 

  • Non-Programmable Thermostats – Manual models that maintain a set temperature until adjusted.
  • Programmable Thermostats – Digital controls with scheduling features to reduce energy usage during off
  • Smart Thermostats – Wi-Fi connected, app-enabled devices with advanced features like occupancy detection and zoning compatibility. 

Compatibility and Replacement 

Selecting the correct OEM thermostat or sensor ensures accurate readings and reliable operation. Always verify part numbers, voltage requirements, and system configuration (single-stage, multi-stage, or heat pump) before replacing components. 

Maintenance and Upgrades 

Faulty sensors can cause misreadings, wasted energy, or system shutdowns. Replacing worn parts or upgrading to energy-efficient thermostats restores system reliability, reduces utility costs, and extends equipment life. 

Wide Selection from Furnace Part Source 

With access to over 500,000 parts from 300+ manufacturers, Furnace Part Source provides the right solution for any repair or upgrade. From thermistors to programmable thermostats, our catalog includes components designed for both residential and commercial HVAC systems. 

Frequently Asked Questions 

What types of thermostats are available for HVAC systems? 

Options include non-programmable, programmable, and smart thermostats, each offering different levels of control and energy efficiency. 

How do I know if my furnace sensor needs replacement?

Signs include frequent system shutdowns, inaccurate temperature readings, or ignition failures.  

Why should I use OEM furnace sensors? 

OEM parts ensure proper fit, compatibility, and performance, reducing the risk of system malfunctions.

What is the difference between a thermocouple and a flame sensor? 

Thermocouples generate voltage to detect a pilot flame, while modern flame sensors use electronic signals to confirm burner ignition. 

Can upgrading to a smart thermostat improve efficiency?

Yes. Smart thermostats allow remote control, scheduling, and advanced optimization, often reducing energy costs.