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🌡️ Stay cool, stay warm, stay ahead—comfort made simple.
The Mroinge M721 is a non-programmable heat pump thermostat designed for easy installation and reliable manual temperature control. Compatible with 2 heat/1 cool heat pump systems and central gas, oil, or electric furnaces, it features a large blue backlit LCD displaying temperature and humidity. Powered by 24VAC or 2 AAA batteries, it requires no C-wire and includes temperature calibration and compressor delay protection to optimize comfort and extend HVAC system life.
| Additional Features | Large Display |
| Asin | B0CRF34TJR |
| Best Sellers Rank | #76,327 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #92 in Home Programmable Thermostats |
| Brand Name | Mroinge |
| Color | Blue Backlight |
| Control Method | Remote |
| Control Type | Button Control |
| Controller Type | Push Button |
| Customer Reviews | 4.5 4.5 out of 5 stars (193) 4.5 out of 5 stars |
| Display Type | LCD |
| Included Components | Temperature Sensor |
| Item Dimensions D X W X H | 0.99"D x 4.92"W x 3.73"H |
| Item Type Name | Thermostat |
| Item Weight | 5.6 ounces |
| Manufacturer | Mroinge |
| Manufacturer Part Number | M721 |
| Material Type | Plastic |
| Model Name | Heat Pump Thermostat |
| Model Number | M721 |
| Mounting Type | Wall Mount |
| Number Of Items | 1 |
| Power Source | [User-Determined: 24VAC or Battery] |
| Product Style | Heat Pump Thermostat |
| Shape | Rectangular |
| Specific Uses For Product | Heat Pump Thermostat |
| Temperature Control Type | Manual |
| Unit Count | 1 Count |
| Voltage | 24 volts_of_alternating_current |
User
Cool air
It works great and was very easy to hook up
User
Cold air
Finely put it up seems to work really well.
User
Works with heat pump W electric heat
I didn’t want to spend more than I needed to on a thermostat because I’m getting a new system soon which will come with a new thermostat but mine broke so I bought this one not expecting much. Actually looks pretty nice and operates very well settings are easy to get to and it actually works with a heat pump w an electric heat kit. Also has humidity readings which is nice to have would recommend if you don’t want a smart thermostat
User
Works great easy install
Nice, easy install. I like that I can adjust the temperature readout. Used this in an RV and it works great.
User
The price is right.
Easy to wire and has large display.
User
Good quality.
Good product, reasonable price.
User
Instructions are confusing
The instructions that came with this product are extremely confusing. I have a little bit of experience installing thermostats this is not my first rodeo. The instructions are confusing to the point that it had me second-guessing what I was doing. In the end I ended up being so lost that I hired a technician to come and finish this installation. Now that it has been installed it works wonderfully. The operation is very straightforward and it's easy to use. I'm very happy with this product now that I'm past the installation hurdle. If you can make it that far it's definitely worth it.
User
Works great
Great product we love it
Trustpilot
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