Mr. Heater F210359 Thermostat for Heater,Tan,Small
$24.24


Price: $24.24
(as of Sep 23, 2025 11:25:47 UTC – Details)
An Incredibly Durable Thermostat for Low Voltage and Millivolt Heaters.
Compatible with Big Maxx MHU 45/75/50/80 Natural Gas/Propane Heater
Compatible with MH 25/40 High Intensity Radiant Garage Natural Gas/Propane Heater
No External Power Needed
Simple 2-wire System
Mounts in Minutes
Customers say
Customers find the thermostat simple to install and easy to wire. The temperature control receives mixed feedback – while some say it maintains a constant temperature in the shop, others note it only goes up to 72-75 degrees. Moreover, the accuracy, functionality, and value for money are also mixed aspects, with some finding it good for the price while others consider it overpriced. Additionally, the ease of use and flexibility receive mixed reviews, with some finding it easy to use while others say it’s hard to adjust.


Raymond –
Working great
Working great
KENT –
Good
Found the same one as my old one. Quality is very good and easy to put .
Monty –
Easy Use and Quick Installation
We needed a quick replacement, and this did not disappoint. The wiring was easy to install, the directions were saved for clear and it was very easy to use.
Joseph kaiser –
Works
Works, little cheesy though
Robert –
Doesn’t work well at all
Not very good at all. Temperature doesn’t read right, the thing has too much swing from on and off. House gets cold, then too hot before it shuts the furnace off so it doesn’t keep anywhere near a steady temperature. Just more junk from you know where.
Robert Berquist –
works great good price
Works right easy install
Dmty –
Temp setting lever is flexible.
Good for the price. The only thing negative is the temperature setting lever. Itâs flexible. So you have to go past the temperature you want to set, and then itâll spring back to your temperature setting. Makes it inaccurate and hard to set precisely. Make it a a steel stamped lever or something. Functions fine. Iâve had it for several years.
AK –
Accurate & Functional
I’ve always used Honeywell and their “round” thermostat for heat only has a battery in it and if that battery – which both 2- I ordered prior to receiving the Mr. Heater, were both dead and did not work. My DO NOT FREEZE items all froze!I highly recommend this product and no longer will purchase HONEYWELL off AMAZON.
John –
Worked precisely as intended and fitperfectlyâ¦.so satisfying!
Troy –
Works great!! Used on my snowmobile trailer. Needed something with an off feature and this did the trick!!
Trent –
Have been having issues with many of the digital units when you are using these in garages that are kept at low temperatures. This is just classic old-school style that continues to work.That being said, it really should be cheaper for what it is
Hutchd25 –
I was looking for a reliable, thermostat that didnât need a battery, and would keep my garage 3 C above freezing. This thermostat is perfect!
yvon couvrette –
Very basic, actual temp do not read to the range of setting( low), not fully tested , but appears to be fairly acurate( many reviews state very inacurate)price is in the high range for a very basic thermostat