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Thermostats / Sensors

Thermostats / Sensors

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    Rheem-Ruud AP17455-3 EcoNet Enabled Stat Faceplate

    Rheem-Ruud

    MSRP: $9.88
    Now: $7.64
    Rheem-Ruud AP17455-3 EcoNet Enabled Stat Faceplate 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: $9.88
    Now: $7.64
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    PRO 1 IAQ T751I UNIVERSAL NON-PROG THERMOSTAT

    PRO 1 IAQ

    MSRP: $165.07
    Now: $127.55
    PRO 1 IAQ T751I UNIVERSAL NON-PROG 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: $165.07
    Now: $127.55
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    PRO 1 IAQ T731 Stat nonprog 2H/1C hp or 1H/1C

    PRO 1 IAQ

    MSRP: $77.02
    Now: $59.52
    PRO 1 IAQ T731 Stat nonprog 2H/1C hp or 1H/1C 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: $77.02
    Now: $59.52
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    PRO 1 IAQ T855SH 5H/3C CommStat Prog/NonProg

    PRO 1 IAQ

    MSRP: $170.20
    Now: $131.52
    PRO 1 IAQ T855SH 5H/3C CommStat Prog/NonProg 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: $170.20
    Now: $131.52
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    PRO 1 IAQ T855 Prog/NonProg 3H/2C Tstat

    PRO 1 IAQ

    MSRP: $141.83
    Now: $109.60
    PRO 1 IAQ T855 Prog/NonProg 3H/2C 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: $141.83
    Now: $109.60
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    Patterson-Kelley 10-0490-3516 JUMO TSTAT EM SERIES 95-210F

    Patterson-Kelley

    MSRP: $630.88
    Now: $487.50
    Patterson-Kelley 10-0490-3516 JUMO TSTAT EM SERIES 95-210F 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: $630.88
    Now: $487.50
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    PRO 1 IAQ T805 TstatProg/NonProg 1H/1C

    PRO 1 IAQ

    MSRP: $123.80
    Now: $95.66
    PRO 1 IAQ T805 TstatProg/NonProg 1H/1C 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: $123.80
    Now: $95.66
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    PRO 1 IAQ T771 NonProgStat 1H or 1C

    PRO 1 IAQ

    MSRP: $58.79
    Now: $45.43
    PRO 1 IAQ T771 NonProgStat 1H or 1C 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: $58.79
    Now: $45.43
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    PRO 1 IAQ T755S 7D/5-1-1progStat CompW/Sensors

    PRO 1 IAQ

    MSRP: $150.51
    Now: $116.31
    PRO 1 IAQ T755S 7D/5-1-1progStat CompW/Sensors 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: $150.51
    Now: $116.31
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    PRO 1 IAQ T755 3H/2CprogStat 7D/5-1-1

    PRO 1 IAQ

    MSRP: $120.09
    Now: $92.79
    PRO 1 IAQ T755 3H/2CprogStat 7D/5-1-1 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: $120.09
    Now: $92.79
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    PRO 1 IAQ T731WO PTACstatW/OccSensor

    PRO 1 IAQ

    MSRP: $226.10
    Now: $174.71
    PRO 1 IAQ T731WO PTACstatW/OccSensor 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: $226.10
    Now: $174.71
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    MSRP: $226.10
    Now: $174.71
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    Patterson-Kelley 23-0000-0230 Thermostat,hi limit,100-240F

    Patterson-Kelley

    MSRP: $482.43
    Now: $372.78
    Patterson-Kelley 23-0000-0230 Thermostat,hi limit,100-240F 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: $482.43
    Now: $372.78
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    PRO 1 IAQ T725 ProgStat 2H/1CHtpmp,1H/1C Conv

    PRO 1 IAQ

    MSRP: $91.94
    Now: $71.04
    PRO 1 IAQ T725 ProgStat 2H/1CHtpmp,1H/1C Conv 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: $91.94
    Now: $71.04
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    Now: $71.04
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    PRO 1 IAQ T721I WIFI 7D,5+1+1orNonProgTstat

    PRO 1 IAQ

    MSRP: $140.48
    Now: $108.55
    PRO 1 IAQ T721I WIFI 7D,5+1+1orNonProgTstat 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: $140.48
    Now: $108.55
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    PRO 1 IAQ T701 1H/1C NonProgStat 4" Display

    PRO 1 IAQ

    MSRP: $60.08
    Now: $46.42
    PRO 1 IAQ T701 1H/1C NonProgStat 4" Display 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: $60.08
    Now: $46.42
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    Now: $46.42
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    PRO 1 IAQ T150 Universal TStat Guard

    PRO 1 IAQ

    MSRP: $34.30
    Now: $26.51
    PRO 1 IAQ T150 Universal TStat Guard 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: $34.30
    Now: $26.51
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    PRO 1 IAQ T621-2 NonProgStat 2H/1C HP or 1H/1C

    PRO 1 IAQ

    MSRP: $66.00
    Now: $50.00
    PRO 1 IAQ T621-2 NonProgStat 2H/1C HP or 1H/1C 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: $66.00
    Now: $50.00
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    MSRP: $66.00
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    PRO 1 IAQ T605-2 ProgTstat 1H/1C,7Day or 5-1-1

    PRO 1 IAQ

    MSRP: $62.17
    Now: $48.04
    PRO 1 IAQ T605-2 ProgTstat 1H/1C,7Day or 5-1-1 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: $62.17
    Now: $48.04
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    PRO 1 IAQ T601-2 Tstat 1/H-1/C Non-Prog

    PRO 1 IAQ

    MSRP: $51.61
    Now: $39.88
    PRO 1 IAQ T601-2 Tstat 1/H-1/C Non-Prog 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: $51.61
    Now: $39.88
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    PRO 1 IAQ T755WHO Wireless Universal Thermostat

    PRO 1 IAQ

    MSRP: $237.47
    Now: $183.50
    PRO 1 IAQ T755WHO Wireless Universal 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: $237.47
    Now: $183.50
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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.