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Model # CT53K

Internet # 203186947

Standard Millivolt Non-Programmable Thermostat

This item has been discontinued.
The Home Depot no longer carries this specific product.

$29.99 / each


Model # CT53K

Internet # 203186947

This Honeywell Standard Heat Only Thermostat features a simple design that is easy to understand. The thermostat allows you to simply adjust the temperature by moving the lever side-to-side. Used with 750 millivolt heating systems.

  • Easy to install and use
  • Includes integrated thermometer
  • Precise temperature control
  • 2-wires. Works with the following 750 mv systems: Gas fireplace and steam or gravity


Product Depth (in.) 
Product Height (ft.) 
Product Height (in.) 
Product Width (in.) 
Color Family 
Control Type 
Number of HVAC Zones 
Operation Type 
Thermostat Features 
No Additional Features 
Thermostat Type 
Heat Only 
Voltage (volts) 
Warranty / Certifications
Certifications and Listings 
No Certifications or Listings 
ENERGY STAR Certified 
Manufacturer Warranty 
One year limited 


Rated 4.7 out of 5 by 10 reviewers.
Rated 5.0 out of 5.0 by Honeywell Thermostat Easy to install. works like a charm! Thats all you get. March 11, 2015
Rated 5.0 out of 5.0 by millivolt ready & simple to use I bought these as replacement thermostats for our apartment building. We have a building that is about 60 years old with wall heaters that require a millivolt thermostat. So far we have replaced 3 of them for our tenants and they seem to be working out well. The other brands we have purchased didn't last very long. These being Honeywell I hope they will do better. So far so good. These also have a positive off & on switch which is a plus. December 17, 2013
Rated 5.0 out of 5.0 by This product works without any problems and instructions were excellent The thermostat that required replacing was mechanical and the contacts were pitted after several years of use. This unit was simple to install and works PERFECTLY ALL THE TIME. This unit uses the latest technology. November 5, 2013
Rated 5.0 out of 5.0 by Works like a charm Purchased for my elderly mother, who was having trouble seeing and adjusting a low end thermostat. She is very pleased with the large numbers and accuracy of the settings. December 17, 2014
Rated 5.0 out of 5.0 by excelent product. work like i expect;perfect;easy to use .the instalation easy to follow the instruction book. April 17, 2012
Rated 4.0 out of 5.0 by Easy to install and works good This is easy to install and inexpensive to buy when being used in a High foot and forklift traffic area. January 30, 2014
Rated 5.0 out of 5.0 by Works great. So easy to install, only takes a little while. Working great. December 29, 2013
Rated 3.0 out of 5.0 by Arrived with a broken part Waiting for replacement, and hopefully this one will work. October 2, 2014
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