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Thermostats / Sensors

Thermostats / Sensors

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    Crandall Stats & Sensors 2212-618-CSS DA PneumaticTstatConversionKit

    Crandall Stats & Sensors

    MSRP: $249.81
    Now: $193.04
    Crandall Stats & Sensors 2212-618-CSS DA PneumaticTstatConversionKit FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted...
    MSRP: $249.81
    Now: $193.04
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    Crandall Stats & Sensors AT-11-401-CSS TK THERMOSTAT COVER

    Crandall Stats & Sensors

    MSRP: $68.64
    Now: $53.04
    Crandall Stats & Sensors AT-11-401-CSS TK THERMOSTAT COVER FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $68.64
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    Crandall Stats & Sensors 20-881-CSS TSTAT CALIBRATION WRENCH

    Crandall Stats & Sensors

    MSRP: $26.43
    Now: $20.43
    Crandall Stats & Sensors 20-881-CSS TSTAT CALIBRATION WRENCH FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $26.43
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    Crandall Stats & Sensors TK-1001-0-CSS 55/85F 2-PIPE DA PNEU.T-STAT

    Crandall Stats & Sensors

    MSRP: $271.41
    Now: $209.72
    Crandall Stats & Sensors TK-1001-0-CSS 55/85F 2-PIPE DA PNEU.T-STAT FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted...
    MSRP: $271.41
    Now: $209.72
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    Venstar VST2000 EXPLORER MINI WIFI 2H/2C STAT

    Venstar

    MSRP: $155.88
    Now: $120.45
    Venstar VST2000 EXPLORER MINI WIFI 2H/2C STAT FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $155.88
    Now: $120.45
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    ClimateMaster ATP32U06 3ht/2cl PROG THERMOSTAT w/HUM

    Climatemaster

    MSRP: $664.55
    Now: $513.52
    ClimateMaster ATP32U06 3ht/2cl PROG THERMOSTAT w/HUM FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $664.55
    Now: $513.52
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    Carrier HH18HA096 DEFROST THERMOSTAT

    Carrier

    MSRP: $32.44
    Now: $24.58
    Carrier HH18HA096 DEFROST THERMOSTAT FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $32.44
    Now: $24.58
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    Carrier TB-24-C BACnet Tstat

    Carrier

    MSRP: $627.86
    Now: $485.16
    Carrier TB-24-C BACnet Tstat FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $627.86
    Now: $485.16
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    ClimateMaster 11B0100N16 WIRE HARNESS T-STAT

    Climatemaster

    MSRP: $32.36
    Now: $25.00
    ClimateMaster 11B0100N16 WIRE HARNESS T-STAT FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $32.36
    Now: $25.00
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    Carrier HH18HB016 FREEZE THERMOSTAT

    Carrier

    MSRP: $30.23
    Now: $23.36
    Carrier HH18HB016 FREEZE THERMOSTAT FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $30.23
    Now: $23.36
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    Venstar VST1700 VENSTAR 2H/1C, 1-DAY PROG STAT

    Venstar

    MSRP: $123.30
    Now: $95.28
    Venstar VST1700 VENSTAR 2H/1C, 1-DAY PROG STAT FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $123.30
    Now: $95.28
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    Venstar VST0051FS Venstar Tstat Prog 2H/2C

    Venstar

    MSRP: $116.32
    Now: $89.89
    Venstar VST0051FS Venstar Tstat Prog 2H/2C FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $116.32
    Now: $89.89
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    Carrier EBSTATE6ICR01 T-STAT

    Carrier

    MSRP: $691.61
    Now: $534.43
    Carrier EBSTATE6ICR01 T-STAT FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $691.61
    Now: $534.43
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    Carrier 33CONNECTSTAT43 CARRIER CONNECT WIFI T-STAT

    Carrier

    MSRP: $1,221.86
    Now: $944.16
    Carrier 33CONNECTSTAT43 CARRIER CONNECT WIFI T-STAT FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $1,221.86
    Now: $944.16
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    ClimateMaster ATP21W02 2 Heat 1 Cool Progammable Stat

    Climatemaster

    MSRP: $201.51
    Now: $155.72
    ClimateMaster ATP21W02 2 Heat 1 Cool Progammable Stat FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $201.51
    Now: $155.72
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    Copeland 998-0071-02 Discharge Line Thermostat

    Copeland

    MSRP: $158.68
    Now: $122.62
    Copeland 998-0071-02 Discharge Line Thermostat FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $158.68
    Now: $122.62
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    Copeland 998-0548-00 KIT-DISCHARGE T'STAT

    Copeland

    MSRP: $166.70
    Now: $128.81
    Copeland 998-0548-00 KIT-DISCHARGE T'STAT FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $166.70
    Now: $128.81
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    Copeland 998-7022-05 7/8" DISCHARGE LINE TSTAT KIT

    Copeland

    MSRP: $214.65
    Now: $165.86
    Copeland 998-7022-05 7/8" DISCHARGE LINE TSTAT KIT FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $214.65
    Now: $165.86
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    Bradford White 415-51046-00 Upper or Lower Thermostat

    Bradford White

    MSRP: $89.15
    Now: $68.89
    Bradford White 415-51046-00 Upper or Lower Thermostat FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above
    MSRP: $89.15
    Now: $68.89
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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.