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Thermostats / Sensors

Thermostats / Sensors

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    Johnson Controls TE-6311M-1 Duct Sensor, 8" Length, Nickel Element, 1 K Ohm

    Johnson Controls

    MSRP: $36.86
    Now: $28.48
    Johnson Controls TE-6311M-1 Duct Sensor 8" Length Nickel Element 1 K Ohm FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order...
    MSRP: $36.86
    Now: $28.48
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    Lennox 24Z13 (Replaces 51M33) Thermostat BB 1230 Non-Prog 2H/1C

    Lennox

    MSRP: $72.70
    Now: $56.18
    Lennox 24Z13 (Replaces 51M33) Thermostat Braeburn 1230 Non Programmable 2 Heat / 1 Cool   This is the Direct Replacement for 51M33 (may require re-wiring) FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock...
    MSRP: $72.70
    Now: $56.18
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    Burnham New Yorker 109645-01 Limit Sensor

    Burnham Boiler

    MSRP: $70.49
    Now: $54.47
    Burnham New Yorker 109645-01 Limit Sensor 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: $70.49
    Now: $54.47
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    Reznor 195292 Flame Sensor

    Reznor

    MSRP: $79.27
    Now: $61.25
    Reznor 195292 Flame Sensor 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: $79.27
    Now: $61.25
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    Danfoss 060G5828 Sensor MBS 3000-8331-A3AC04-0

    Danfoss

    MSRP: $894.38
    Now: $691.11
    Danfoss 060G5828 Sensor MBS 3000-8331-A3AC04-0 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: $894.38
    Now: $691.11
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    Schneider Electric (Micronet) MN-S3-500 Micronet Sensor Set Pt & Override NO COVER

    Schneider Electric (Micronet)

    MSRP: $498.96
    Now: $385.56
    Schneider Electric (Micronet) MN-S3-500 Micronet Sensor Set Pt & Override NO COVER FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order...
    MSRP: $498.96
    Now: $385.56
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    Carrier OP12DA040EE Sensor

    Carrier

    MSRP: $641.29
    Now: $485.83
    Carrier OP12DA040EE Sensor 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: $641.29
    Now: $485.83
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    Resideo T87N1000 (Replaces T8775C1005) Mercury Free Round Thermostat 18-30Vac

    Resideo

    MSRP: $104.66
    Now: $80.87
    Resideo T87N1000 (Replaces T8775C1005) Mercury Free Round Thermostat 18-30Vac 18-30Vac Battery Assisted Power Stealing 40-90 Degree Temperature Setting Range 1 Stage Heat 1 Stage Cool Conventional Systems or Heat Pumps with No Auxiliary...
    MSRP: $104.66
    Now: $80.87
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    Robertshaw RS8110 (replaces RS2110 and 300-204) Non-Program Stat 1H/1C

    Robertshaw

    MSRP: $49.37
    Now: $38.15
    Robertshaw RS8110 (replaces RS2110) Non-Program Thermostat 1H/1C This is the Direct Replacement for RS2110 This is the Direct Replacement for 300-204 FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts...
    MSRP: $49.37
    Now: $38.15
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    York S1-031-01277-000 DISCHARGE SENSOR

    York

    MSRP: $37.31
    Now: $28.26
    York S1-031-01277-000 DISCHARGE SENSOR 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: $37.31
    Now: $28.26
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    York S1-031-01278-000 Discharge Sensor

    York

    MSRP: $95.55
    Now: $73.84
    York S1-031-01278-000 Discharge Sensor 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: $95.55
    Now: $73.84
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    Johnson Controls TE-6344P-1 Temperature Sensor, Wall Mounting, Thermistor Element (2.2 K Ohm)

    Johnson Controls

    MSRP: $68.21
    Now: $52.71
    Johnson Controls TE-6344P-1 Temperature Sensor Wall Mounting Thermistor Element (2.2 K Ohm)  FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM...
    MSRP: $68.21
    Now: $52.71
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    Lochinvar & A.O. Smith 100109908 (Replaces 9004520215) FLAME SENSOR

    Lochinvar & A.O. Smith

    MSRP: $94.89
    Now: $73.33
    Lochinvar & A.O. Smith 100109908 (Replaces 9004520215) FLAME SENSOR This is the updated version for 9004520215   FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day...
    MSRP: $94.89
    Now: $73.33
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    Rheem-Ruud 47-104184-01 Water Sensor

    Rheem-Ruud

    MSRP: $10.21
    Now: $7.89
    Rheem-Ruud 47-104184-01 Water Sensor   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $10.21
    Now: $7.89
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    Honeywell TH5220D1029 (Replaces TH5220D1003) FocusPro 5000 Digital Non Programmable Thermostat

    Resideo

    MSRP: $225.79
    Now: $174.47
    Honeywell TH5220D1029 (Replaces TH5220D1003) FocusPro 5000 Digital Non Programmable Thermostat (Larger Display) FocusPro 5000 Digital Non Programmable Thermostat, 20-30Vac or 750mV, Up to 2 Heat/2 Cool Conventional Systems and up to 2 Heat/1 Cool Heat...
    MSRP: $225.79
    Now: $174.47
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    Trane TCONT724AS42DA THERMOSTAT XL724

    Trane

    MSRP: $358.51
    Now: $277.03
    Trane TCONT724AS42DA THERMOSTAT XL724    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: $358.51
    Now: $277.03
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    Laars Heating Systems R2014800 Temperature Control Sensor

    Laars Heating Systems

    MSRP: $178.93
    Now: $138.26
    Laars Heating Systems R2014800 Temperature Control Sensor  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Every Time No Minimum Order Requirements
    MSRP: $178.93
    Now: $138.26
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    Carrier HH79NZ091 Outside Air Temp Sensor

    Carrier

    MSRP: $75.45
    Now: $58.31
    Carrier HH79NZ091 Outside Air Temp Sensor   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements      
    MSRP: $75.45
    Now: $58.31
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    York S1-2702-311P Flame Sensor; 90 Degree Bend

    York

    MSRP: $43.68
    Now: $33.75
    York S1-2702-311P Flame Sensor; 90 Degree Bend   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order Requirements    
    MSRP: $43.68
    Now: $33.75
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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.