Honeywell Round Mechanical Thermostat Heat Only-CT87K - The Home Depot


Model # CT87K

Internet # 100476730

Store SKU # 376234

Round Mechanical Thermostat Heat Only

Honeywell Round Mechanical Thermostat Heat Only

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

$26.98 / each


Model # CT87K

Internet # 100476730

Store SKU # 376234

The Honeywell Round Mechanical Thermostat has dial-style mechanical operation in a traditional circular housing. It offers time-tested, precise temperature control in a simple, mercury-free thermostat.

  • Non-programmable
  • Familiar and easy-to-use dial
  • Precise temperature control
  • Suitable for home heating systems


Assembled Depth (in.)  3.5 in  Assembled Height (in.)  9.25 in 
Assembled Width (in.)  7 in  Product Depth (in.)  1.5 
Product Height (ft.)  Product Width (in.) 
Color Family  Whites  Control Type  Dial 
Number of HVAC Zones  Operation Type  Mechanical 
Returnable  90-Day  Shape  Circular 
Thermostat Features  No Additional Features  Thermostat Type  Heat Only 
Voltage (volts)  24 
Warranty / Certifications
Certifications and Listings  No Certifications or Listings  ENERGY STAR Certified  No 
Manufacturer Warranty  1 year limited warranty 


Rated 3.5 out of 5 by 44 reviewers.
Rated 4 out of 5 by Theremostat installation The thermostat was a little more difficult to install then I originally thought. There was an extra tool needed, which I had to go back out and get. December 15, 2014
Rated 2 out of 5 by Needs off switch Doesn't have an off switch so I have to shut it off at the furnace breaker or pull the thermostat out. December 10, 2014
Rated 5 out of 5 by simple & reliable Easy to install, easy to use. No complicated programming needed. December 10, 2014
Rated 5 out of 5 by good replacement easy to install, no mercury, and much easier to operate than the programmable it replaced August 19, 2014
Rated 1 out of 5 by Failed in 13 Months I suggest you not purchase this thermostat. Honeywell quality is suffering. This thermostat failed after only 13 months. The Honeywell transformer for my furnace failed in less than 11 months. Emailed Honeywell and customer service and they told me tough luck; warranty is only goof for 1 year. It's sad their product can only last a bit more than a year without failure. I would NEVER purchase or recommend a Honeywell product. Poor quality and customer service. November 13, 2012
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