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Thermostats / Sensors

Thermostats / Sensors

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    Peco Controls TA155-018 24-277v SPDT WarmCool Tstat

    Peco Controls

    MSRP: $96.86
    Now: $74.84
    Peco Controls TA155-018 24-277v SPDT WarmCool 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: $96.86
    Now: $74.84
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    Peco Controls TF115P-002 40-110F SPDT COIL TSTAT NEMA4X

    Peco Controls

    MSRP: $93.21
    Now: $72.02
    Peco Controls TF115P-002 40-110F SPDT COIL TSTAT NEMA4X 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: $93.21
    Now: $72.02
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    Peco Controls T4522-001 2H/2C Programmable T-Stat

    Peco Controls

    MSRP: $147.63
    Now: $114.07
    Peco Controls T4522-001 2H/2C Programmable 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: $147.63
    Now: $114.07
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    Peco Controls T8168B-2 BACNET T-STAT

    Peco Controls

    MSRP: $326.57
    Now: $252.35
    Peco Controls T8168B-2 BACNET 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: $326.57
    Now: $252.35
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    Peco Controls SP155-009 Dual SetPt Comm Thermostat

    Peco Controls

    MSRP: $61.66
    Now: $47.65
    Peco Controls SP155-009 Dual SetPt Comm 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: $61.66
    Now: $47.65
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    Peco Controls TW180 Multi Fan Thermostat

    Peco Controls

    MSRP: $267.81
    Now: $206.95
    Peco Controls TW180 Multi Fan 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: $267.81
    Now: $206.95
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    Peco Controls TB155-046 Electric Thermostat Auto C/O 3 Speed

    Peco Controls

    MSRP: $139.69
    Now: $107.94
    Peco Controls TB155-046 Electric Thermostat Auto C/O 3speed Fan On Off 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...
    MSRP: $139.69
    Now: $107.94
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    Peco Controls TB158-100 DigitalThermostatSetBack3SpdFn

    Peco Controls

    MSRP: $206.99
    Now: $156.81
    Peco Controls TB158-100 DigitalThermostatSetBack3SpdFn 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: $206.99
    Now: $156.81
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    Neptronic TFC24F3XYZ3 FAN COIL THERMOSTAT 3 SPEED

    Neptronic

    MSRP: $315.96
    Now: $244.15
    Neptronic TFC24F3XYZ3 FAN COIL THERMOSTAT 3 SPEED 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: $315.96
    Now: $244.15
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    Nordyne 1022925R Outdoor Thermostat (limit)

    Nordyne

    MSRP: $20.21
    Now: $15.62
    Nordyne 1022925R Outdoor Thermostat (limit) 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: $20.21
    Now: $15.62
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    Nordyne 624345R OUTDOOR THERMOSTAT

    Nordyne

    MSRP: $35.05
    Now: $27.08
    Nordyne 624345R OUTDOOR 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: $35.05
    Now: $27.08
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    NTI Boiler 6000083604 Outdoor Air Sensor

    NTI Boiler

    MSRP: $117.50
    Now: $90.79
    NTI Boiler 6000083604 Outdoor Air 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: $117.50
    Now: $90.79
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    Manitowoc Ice 000016461 BIN THERMOSTAT

    Manitowoc Ice

    MSRP: $88.32
    Now: $68.25
    Manitowoc Ice 000016461 BIN 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: $88.32
    Now: $68.25
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    MSRP: $88.32
    Now: $68.25
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    MARS 33420 OPEN35 CLOSE55 REFRIG TSTAT

    MARS

    MSRP: $89.36
    Now: $69.05
    MARS 33420 OPEN35 CLOSE55 REFRIG 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: $89.36
    Now: $69.05
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    MARS 33475 Thermostats Op40 Cl20

    MARS

    MSRP: $125.30
    Now: $96.82
    MARS 33475 Thermostats Op40 Cl20 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: $125.30
    Now: $96.82
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    MSRP: $125.30
    Now: $96.82
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    MARS 33430 Open50 Close35 RefrigTstat

    MARS

    MSRP: $108.82
    Now: $84.09
    MARS 33430 Open50 Close35 RefrigTstat 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: $108.82
    Now: $84.09
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    Daikin-McQuay 250803400 RTU BACNET THERMOSTAT

    Daikin-McQuay

    MSRP: $966.98
    Now: $747.21
    Daikin-McQuay 250803400 RTU BACNET 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: $966.98
    Now: $747.21
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    Daikin-McQuay DTST-ONE-ADA-A ONE+ SMART THERMOSTAT

    Daikin-McQuay

    MSRP: $1,025.57
    Now: $776.95
    Daikin-McQuay DTST-ONE-ADA-A ONE+ SMART 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: $1,025.57
    Now: $776.95
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    Daikin-McQuay 073394101 Manual C/O Thermostat

    Daikin-McQuay

    MSRP: $170.21
    Now: $131.53
    Daikin-McQuay 073394101 Manual C/O 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: $170.21
    Now: $131.53
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    Daikin-McQuay 107345204 50/90f 24-277V Thermostat

    Daikin-McQuay

    MSRP: $306.74
    Now: $237.02
    Daikin-McQuay 107345204 50/90f 24-277V 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: $306.74
    Now: $237.02
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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.