Model # M100

Internet #204804202

Store SO SKU #601779

White Rodgers M100 Heat/Cool Mechanical Non-Programmable Thermostat

White Rodgers

M100 Heat/Cool Mechanical Non-Programmable Thermostat

  • Easy installation with step-by-step instructions
  • Accurate temperature control
  • Compatible with single-stage heating and cooling systems
$1847 /each
store icon Loading Buying Options...
package icon Loading Buying Options...
Sorry, but we ran into issues loading these options. Please try refreshing.

Frequently Bought Together

Product Overview

The Emerson M100 thermostat is an easy to use and easy to install thermostat. This mercury free mechanical thermostat provides accurate temperature control, and is ideal for use in homes, RV's and mobile homes. This thermostat is for use on single stage furnaces and air conditioners (for 24-Volt and millivolt systems).

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.

Compare Similar

$14.63 /each
$18.47 /each
$19.99 /each
$44.99 /each
Name Mechanical Heat/Cool Thermostat 1C26-101 M100 Heat/Cool Mechanical Non-Programmable Thermostat B50 Baseboard Non-Programmable Thermostat - Dual Pole Round Heat/Cool Thermostat
Brand Emerson White Rodgers White Rodgers Honeywell
Ratings (0) (2) (4) (80)
Operation Type Mechanical Mechanical Mechanical Mechanical
Features No Additional Features No Additional Features No Additional Features No Additional Features
Thermostat Type Heating and Cooling Heating and Cooling Heat Only Heating and Cooling
View Product View Product View Product View Product



Display height (in.)
0 in
Display width (in.)
0 in
Product Depth (in.)
Product Height (in.)
Product Width (in.)


Color Family
No Additional Features
Display Base,Mounting Hardware,Thermostat
Operation Type
Thermostat Product Type
Non-Programmable Thermostat
Thermostat Type
Heating and Cooling
Voltage (volts)
Wattage (watts)
30 W
Works With
Single-Stage Heating & Cooling

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Manufacturer Warranty
3 years

More Products With These Features


Customer Questions & Answers

How do you hook up a m100 thermostat

Asked by: john
Here are the instructions for the M100.
Answered by: Tangelo
Date published: 2016-12-23

Thermostat M100 for cooling was not completed upon hookup in 5th wheel. Have to turn off breaker to stop fan.

White Rodgers thermostat. The man who put it in didn't leave box with instructions/manual. (Cooler will not shut off when set temp is reached). Have to turn off breaker. I know it is a matter of rewiring. I'm disabled & have to try to do this myself.
Asked by: DeeDee
Hi DeeDee, and thank you for your recent inquiry with The Home Depot. I believe it would be best to reach out to the manufacturer for assistance. The manufacturer is Emerson Electric and their customer service department can be reached at 888-725-9797. Please contact us with any additional questions at 800-430-3376. Thank you for shopping Home Depot
Answered by: HomeDepot
Date published: 2016-08-19

Can I replace a Coleman 1C26-10 with this thermostat

It is a Gulf Stream RV with a Suburban furnace and a Coleman air conditioner.
Asked by: Joe

I have a travel trailer i need to change the thermostat out in. I was wondering if this one. Ugh the work in it

Asked by: chris
  • y_2017, m_8, d_18, h_1CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_4
  • loc_, sid_204804202, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=BEST_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=POSITIVE_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 97ms

Customer Reviews

M100 Heat/Cool Mechanical Non-Programmable Thermostat is rated 2.5 out of 5 by 2.
Rated 4 out of 5 by from Good Basic Thermostat! I have had a programmable thermostat. I grew really tired of trying set the hours and temperature. It was just a hassle and too complicated. It was also virtually impossible to replace the batteries without taking the whole unit apart. That's why I decided to go with this simple mechanical thermostat. The White-Rogers' M100 thermostat is easy to operate. If you want it cooler, you can just turn the lever down, if warmer turn it up. You can also just use the fan. The unit is small and unobstrusive. A great value for the price. If you want a bit more sophisticated model go with the M150. Overall, a good unit.
Date published: 2016-04-01
Rated 1 out of 5 by from What a Hassle! I feel bad about leaving such a negative review but I am just being honest here. I got this very basic thermostat because our older one was not working and I like simple devices whenever possible. My husband who is very handy with home improvements could not get this thing connected. He said the instructions were terrible. After two days of trying, we had to hire someone to install it. The good thing is that is works just fine, A/C or heat.
Date published: 2016-06-05
  • y_2017, m_8, d_18, h_9
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_2
  • loc_, sid_204804202, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 99ms