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  • Easy to install and use.
  • Fan Control - Set fan to run automatically with system or constantly on.
  • Mercury Free.
  • Includes mounting hardware and wall plate.
  • Compatible with heat and cool systems.

Heat and Cool Non-Programmable Thermostat

The Honeywell CT31A1003/E Heat and Cool Non-Programmable Thermostat features low voltage controls and a convenient snap-action switch that allows users to adjust freely between heating and cooling systems. Incredibly easy to install and compatible with a host of heating and cooling systems, this non-programmable thermostat doesn't require leveling and comes equipped with an intuitive fan control that allows you to customize your fan's operation. Whether you choose to have it run automatically with the system or set it on constant, you'll have options. Mercury free, this non-programmable thermostat comes equipped with mounting hardware and a wall plate that make the process of installation even more convenient.

  • Single-Stage Heating and Cooling: Yes
  • Multi-Stage Heating and Cooling: No
  • Heating Only: Yes
  • Cooling Only: Yes
  • Compatible with Warm Air Furnace: Yes
  • Compatible with Central Air Conditioning: Yes
  • Compatible with Heat Pump (No Aux./EM): No
  • Compatible with Heat Pump (With Aux./EM): No
  • Compatible with Hot Water: Yes
  • Compatible with Steam or Gravity: Yes
  • Use with Floor/Wall Furnace 24V or 750mV: Yes
  • Use with Volt Gas Fireplace 24V or 750mV: Yes
  • Use with Pellet Stove for mV Thermostats: No
  • Use with Electric Baseboard 120V-240V: No
Product Details
Product Specs
Product Manuals
Honeywell Home Heat and Cool Non-Programmable Thermostat - CT31A Video

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CT31A1003/E customer reviews

Overall Rating

3 Reviews
3 customers recommend this product
Honeywell Home Heat and Cool Non-Programmable Thermostat - CT31A Reviews
John Zollo
January 16, 2020
Verified Purchase

Was exactly as represented. Direct replacement for one the stopped woking

Brian Moore
March 7, 2014
Verified Purchase
good product

I use this product in my home and it is very solid. It is also very easy to replace if needed...

Arthur Mead
October 18, 2011
Good value!

Bought 2 for rental houses, easy to install and work good.

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