Model # CT87K

Internet #100476730

Store SKU #376234

Honeywell Round Mechanical Thermostat Heat Only
0085267263672

Honeywell

Round Mechanical Thermostat Heat Only

  • "The Round" thermostat is the world's most popular thermostat
  • Mercury free thermostat
  • Precise temperature control for heat only systems
$2698 /each
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Frequently Bought Together

Product Overview

  • "The Round" thermostat is the world's most popular thermostat
  • Mercury free thermostat
  • Precise temperature control for heat only systems
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.

Product Overview

  • "The Round" thermostat is the world's most popular thermostat
  • Mercury free thermostat
  • Precise temperature control for heat only systems
Model #: CT87K
Sku #: 376234
Internet #: 100476730

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.

Info & Guides

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Price
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Name Digital Non-Programmable Thermostat Round Mechanical Thermostat Heat Only CT50K Low Temperature Thermostat Round Heat/Cool Thermostat
Brand Honeywell Honeywell Honeywell Honeywell
Ratings (198) (129) (9) (82)
Operation Type Digital Mechanical Mechanical Mechanical
Features Battery Operated,Low Battery Indicator No Additional Features No Additional Features No Additional Features
Thermostat Type Heating and Cooling Heat Only Heat Only Heating and Cooling
View Product View Product View Product View Product

Specifications

Dimensions

Display height (in.)
3.68
Display width (in.)
3.68
Product Depth (in.)
1.5
Product Height (in.)
3
Product Width (in.)
3

Details

Color Family
Whites
Features
No Additional Features
Included
Thermostat
Operation Type
Mechanical
Returnable
90-Day
Shape
Circular
Thermostat Product Type
Non-Programmable Thermostat
Thermostat Type
Heat Only
Voltage (volts)
24
Wattage (watts)
24
Works With
24-Volt Heating & Aiir Conditioning System

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Manufacturer Warranty
1 year limited warranty

Specifications

Dimensions

Display height (in.)
3.68
Display width (in.)
3.68
Product Depth (in.)
1.5
Product Height (in.)
3
Product Width (in.)
3

Details

Color Family
Whites
Features
No Additional Features
Included
Thermostat
Operation Type
Mechanical
Returnable
90-Day
Shape
Circular
Thermostat Product Type
Non-Programmable Thermostat
Thermostat Type
Heat Only
Voltage (volts)
24
Wattage (watts)
24
Works With
24-Volt Heating & Aiir Conditioning System

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Manufacturer Warranty
1 year limited warranty

Questions & Answers

Does this have a removable or rechargable cbattery?

Asked by: HdweVice
No, it does not have a battery. It's a basic mechanical unit that draws power from the furnace.
Answered by: Fussnfeathers
Date published: 2017-03-05

can I replace this with a programible thermostat

Asked by: monk
Yes
Answered by: Anonymous
Date published: 2017-03-04

will this work with a 2 wire system?

Asked by: Mongie
Yes
Answered by: RW13
Date published: 2016-12-18

Will this work for a boiler system?

Asked by: Macy
Hi Macy, We would be happy to help you check compatibility. Please give us a call at 1-800-468-1502 - 8AM to 7PM CST from Monday to Friday. 8AM to 6PM CST on Saturday. And 9AM to 6PM CST on Sunday. Thank you.
Answered by: Honeywell Support
Date published: 2016-10-23
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Customer Reviews

Round Mechanical Thermostat Heat Only is rated 3.7 out of 5 by 129.
Rated 1 out of 5 by from Bought this product today to replace a 30 year-old thermostat that died. Installed according to ... Bought this product today to replace a 30 year-old thermostat that died. Installed according to instructions, and thermostat does not work! Heat turns on when wires are touched together, but not when installed in thermostat. I even tried hooking up the wires backward with no result, and in the third, "Y", station heat turned on, but wouldn't turn off. Tried wires back in correct position and it still didn't turn heat on. Apparently I can't return this item to Home Depot. Called customer service at 7 p.m. when unit didn't work. Customer service was closed. Will see what customer service tells me tomorrow when they are open for business again. I hope we won't have to do without heat (except "hot wiring" the heater) for weeks. Will update after speaking with Honeywell. Calling got me NOWHERE! I sat on the line for 45 minutes with a recording telling me every two minutes that I was the 15th in line. I gave up when a friend got my OLD thermostat working again. Taking product back to the store TODAY.
Date published: 2017-09-20
Rated 5 out of 5 by from Is good thermostat and it is heat only best off... Is good thermostat and it is heat only best off all it has holes in the back to make limit of Hi or Lo setting by inserting small plastic pin (pin not included). it can control boilers with zone valve that have 2 or 3 wire and furnace without AC.
Date published: 2017-10-18
Rated 4 out of 5 by from These are not mechanical. The look like the old reliable... These are not mechanical. The look like the old reliable round thermostats, but: They're bigger (diameter and bulkier) and electronic inside. They even have a wide plastic backing plate, that makes them enormous. But they do work.
Date published: 2017-09-27
Rated 5 out of 5 by from Easy to install, works great. Seems to keep accurate temperature. Nice simple design that doesn't... Easy to install, works great. Seems to keep accurate temperature. Nice simple design that doesn't need any batteries to work (unlike some digital ones).. great for a rental unit. Affordable price.
Date published: 2017-05-16
Rated 4 out of 5 by from Simple, clean design for analog lovers. Works great...good for environment...replaces old school... Simple, clean design for analog lovers. Works great...good for environment...replaces old school thermost with yucky mercury (bad).
Date published: 2017-06-27
Rated 4 out of 5 by from Worked when installed and matched the decor of the remodeling.... Worked when installed and matched the decor of the remodeling.
Date published: 2017-09-19
Rated 1 out of 5 by from 1 Star Review Rating provided by a verified purchaser
Date published: 2017-04-22
Rated 4 out of 5 by from 4 Star Review Rating provided by a verified purchaser
Date published: 2017-08-09
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