We are an authorized distributor for Honeywell and other leading thermostat manufacturers.

Line voltage thermostats are typically used for electric radiant, convection or resistance heaters such as baseboard, cove and wall heaters.
Low voltage thermostats are used with central heating systems including furnaces, boilers, air conditioning, heat pumps and split systems. The wires aren’t as thick as you’ll find on line-voltage stats.

If you’re replacing a thermostat you can check which one you need by looking at your wiring. Line-voltage thermostats have two or four thick wires coming out of the back that are attached with wire nuts to wires in the wall. The wires are much larger than the wires on low-voltage thermostats.

Click on a sub-category below or scroll past them to see all the products in this category. You may also use the filters on the left to sort the products in this category.

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RE156 Triac Electric Rel. 600V 6A
Stelpro Triac Elect. Rel. 600 Volts - 6A

STELPRO626296105924
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RE253C Triac Relay
Stelpro Triac Relay W/O Trans 25A/208 - 347 Volts - (Remote)

STELPRO626296105948
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RE253T Triac Relay
Stelpro Triac Relay C/ Watts - Trans 25A/208 - 347 Volts - (Remote)

STELPRO626296105955
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RE306C Triac Relay
Stelpro Triac Relay W/O Trans 30A/600 Volts - (Remote)

STELPRO626296105979
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REM5000R1001 Portable Comfort Control
Honeywell Control - Works with compatible RedLINK enabled thermostats & accessories. Use anywhere in the home to experience a new level of comfort & convenience. RedLINK Enabled. Works in both zoned & non-zoned applications. Controls up to 16 thermostats

HONEYWELL10018
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RFKIT5 Hotpod Wireless Transmitter
TPI (Markel/Raywall/Fostoria) Wireless transmitter kit for Hotpod. Kit includes RFT-1 Thermostat interface, & RFR-5 relay package. Kit allows standard lowVage Thermostats to be used wirelessly to control Hotpod or other HVAC systems., Catalog #: 05235702

MARKEL523578
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RFR5 Receiver for RF thermostat
TPI Corp. (Markel/Raywall/Fostoria) RF Wireless Interface Series - Receiver for RF Thermostat - Catalog #: 05235502

MARKEL523554
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RFT1 Thermostat for RF Package
TPI Corp. (Markel/Raywall/Fostoria) RF Wireless Interface Series - Thermostat for RF Package - Catalog #: 05235602

MARKEL523561
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RK-1 120 Volt Thermostat Relay Kit
Easy Heat - Switches 2 Separate Multiple 120 Volt Floor Warming Systems (Each With a Total 24 Amp Maximum Load

EASY01300
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RK-2 240 Volt Thermostat Relay Kit
Easy Heat Relay Switches 2 Separate Multiple 240 Volt Floor Warming Systems (Each With a Total 24 Amp Maximum Load

EASY01299
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RK120EAA Low Voltage Thermostat
TPI Corp. (Markel/Raywall/Fostoria) RK Series - Low Voltage - 24VAC or MV - Catalog #: 05260102

MARKEL526012
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RT850 120-347V Solid state relay
Honeywell Solid state relay without transformer - Compatible with Vac or Vdc signals, Compatible with all 24 V thermostats with 2-wire connections (R,W) or 3-wire connections (R,W,C)

AUBE10084
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RT850T-240/U Relay for 24V Thermostats
Honeywell Aube Solid State Relay with 24V - 240V transformer - 5520W @ 240V - 23A @ 208/240V - Control a line voltage resistive load from a low voltage thermostat - Compatible with 24V thermostats with 2-wire connections (R,W) & 3-wire connections (R,W,C)

AUBE10048
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S2022H10AB SP Wall Thermostat Ivory
TPI Corp. (Markel/Raywall/Fostoria) Thermostat - Single Pole Line Volt - Wall Thermostat with leads - 22 amp ivory - Catalog #: 05024302

MARKEL502436
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Signature 120/240 Volt WiFi Thermostat
Nuheat 7-day programmable floor heating tstat - 120/208/240V 50/60hz 15A Resistive Load - 1800W 120V/3600W 240V - GFCI Class 5 ma Trip Level - 41-104F Temp Range, Wi-Fi 802.11 b/g/n - 3.5" 320x480 pixel touchscreen - Includes AC0008 Probe - Part #: AC0055

NUHEAT10285
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SL-3 120V 1440W Thermostat/Receptacles
EasyHeat SL3 Series Thermostat - Adjustable Range (36-77 Deg. F.) - Contains Duplex Receptacle (does NOT have GFCI protection) (120 Volt - 1440 Watt/12 Amp Capacity) - 4 Foot Three Wire Cord and Plug -10 ft (3 m) sensor detects the pipe temperature

EASY013627193871
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STE241WB+ Thermostat
Stelpro low voltage single programming electronic thermostat (STE241) (24 V) efficiently control relays (electronic or not). Electric units with or without fans and electric furnaces - 24 Volts - 1 Stage (White)

STELPRO626296275740
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STE403NPW24 Stelpro STE402NP Series
Stelpro Single Programmable Elect. Thermostat - 5750 Watts/347 Volts - (White) (Pack Of 24)

STELPRO626296189405
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STZW402WB+ Ki Z-Wave Smart Thermostat
Stelpro STZW402+ Series Wall Thermostat for the Smart Home - Smartphone control ready - Works with electric baseboards & convectors - Not for fan-forced heaters - 120 Volt 2000 Watt/240 Volt 4000 Watt - 2 or 4 wire connection - Backlighted - White

STELPRO626296388587
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SWT1F Thermostat SP 120-277V 22A
Stelpro SWT Series Line Voltage Mechanical Wall Thermostat - 2-wire connection. 50 to 90F - 22 Amps - Electric baseboards or wall fan heaters - Single Pole - Fahrenheit - 120V, 208V, 240V & 277 Voltage - UL Approved

STELPRO626296219607
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T410A1013 Electric Heat Thermostat
Honeywell White Wall-Mounted Line Voltage Control - 22A at 120/208/240 Vac. - 19A at 277 Vac. - Snap-action switch 40 F to 80 F - Two-wire 6 in. color-coded leads - NO POSITIVE OFF - SPST

HONEYWELL10052
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T4398A1021 White SPST Thermostat
TPI Corp./Markel Honeywell Precision Electric Heat Line Voltage T-stat SPST - 22 amp 120-240V - Premier White High Performance Electric Heat Thermostat - No inductive resistive 22A at 120/208/240 Vac. 19A at 277 Vac. - Catalog #: 05033002

MARKEL503303
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T4398A1021/U White SPST Thermostat
Honeywell 120 Vac; 208 Vac; 240 Vac; 277 Vac - Non-inductive resistive 22A at 120/208/240 Vac. 19A at 277 Vac. For Electric baseboards, convectors and fan forced heaters (resistive rated loads)

HONEYWELL10093
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T451B3004/U 120 to 227 Vac Thermostat
Honeywell Light Duty Line Voltage Thermostat, Range 50-86F - Less Thermometer (without thermometer) - control line voltage valves, motors, contractors, electric heat, elements, duct furnaces, and fan coil units in heating/cooling systems

HONEYWELL10080
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T498A1778/U Brush Gold SPST Thermostat
Honeywell Brush Gold Electric Heat Thermostat provides line voltage control of electric heating systems - Noninductive resistive 22A at 120/208/240 Vac - 19A at 277 Vac - Two Six inch stranded copper leadwires * built in thermometer*

HNYWLTST10034
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T498B1512 Brush Gold DPST Thermostat
Honeywell Brush Gold Electric Heat Thermostat provides line voltage control of electric heating systems - Noninductive resistive 22A at 120/208/240 Vac - 19A at 277 Vac - Two Six inch stranded copper leadwires * built in thermometer*

HNYWLTST10009
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T6051B1006/U 120 or 240 Vac SPDT T-Stat
Honeywell Heavy Duty Line Voltage Thermostat, Explosion Proof (46 to 84F) Heat-Cool 120/240V,Range 46-84F SPDT. Heat Closes On Temp Fall, Cool On Rise -

HONEYWELL10082
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T651A3018 Honeywell Thermostat
Honeywell 44-86F, W/ Thermometer Locking Cover and Range Stops. Horizontal/Vertical - Light and Medium Duty Line Voltage Thermostats control line voltage valves, motors, contractors, electric heat, elements, duct furnaces, and fan coil units

HNYWLTST10004
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T822K1018 Low Voltage White Thermostat
Dimplex Electromode Low Voltage Triac for 24 Volt Control Systems. Non-inductive 30VAC Max, 1.5 Amp, 50-86F, Adjustable Anticipator Setting - Temperature Range 50-86F - Farenheit Scale - White Color - 30VAC, max. 1.5A

DIMPLEX781052071325
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T822K1018/U Stelpro T822K1018U Series
Stelpro low voltage thermostat. (T822K1018U). 24 Volts. 2-wire connection. compatible with all RE and R841 model relays - White L.V. T822 W/O Mercury (°F)

STELPRO626296186534

Line & Low Voltage Thermostats, Relays & Transformers, Industrial/Commercial Space Thermostats, Plug In Inline Thermostats, Thermostat Wire