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Heagstat H721 Non-Programmable Heat Pump Thermostat, 2 Heat/1 Cool, with 4.5 sq. Inch Display

  • Based on 519 reviews
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Availability: Only 10 left in stock, order soon!
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Arrives Friday, May 22
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Features

  • Before buying, please confirm whether the product is compatible with your system, and check the size of the product to see if it can cover the traces left on the wall of the old thermostat.
  • Heagstat H721 2 heat/1 cool non-programmable heat pump thermostats, to control the temperature in a room.
  • For use with Heat Pump Systems or conventional (central gas, oil, electric furnaces) single stage systems, up to 2 heat 1 cool.
  • Not compatible with 110-240V electric heat systems (like electric baseboard heat, line voltage, convectors, radiant-ceiling heat).-- does not work with conventional multistage systems, mini split systems and 12v rv thermostats.
  • Accurate temperature control of +/-1-Degree F for consistent comfort, Room temperature display range: 41F to 95F, Temperature control range: 44F to 90F.
  • Support a heat or cool swing set up (0.2F to 2F), which will either prolong or shorten the temperature open time. make comfortable temperatures to reduce energy usage, savings on annual heating and cooling costs.
  • Room temperature calibration adjustment, and 5 minute compressor delay protection (Selectable on or off), with air filter change reminder and low battery indicator available.
  • Display with white backlight, easy-to see and read. large, clear backlit digital display, very suitable for middle-aged and elderly people.
  • Dual-powered (battery and/or hardwire 24Vac power), easy access battery compartment.
  • If you have any problem, please feel free to contact us, we will repley you in 24 hours. the products come with 30 days free return, 2-year Worry-Free Warranty.

Brand: Heagstat


Model Name: H721 Heat pump Thermostat


Product Dimensions: 0.98"D x 4.72"W x 3.86"H


Controller Type: Push Button


Special Feature: Separate Heating and Cooling Swing, Low Battery Indicator, Temperature Display, 5 Minute Compressor Delay Protection See more


Controller Type: Push Button


Additional Features: Separate Heating and Cooling Swing, Low Battery Indicator, Temperature Display, 5 Minute Compressor Delay Protection


Specific Uses For Product: Compatible with Heat Pump System


Temperature Control Type: 2 Heating and 1 Cooling


Connectivity Technology: Wired


Power Source: Dual Powered


Voltage: 24 Volts (AC)


Display Type: Digital


Screen Size: 2.12 Inches


Control Type: Button Control


Control Method: Touch


Mounting Type: Wall Mount


Backlight: Yes


Item Dimensions D x W x H: 0.98"D x 4.72"W x 3.86"H


Item Weight: 0.48 Pounds


Material Type: Plastic


Brand Name: Heagstat


Model Name: H721 Heat pump Thermostat


Included Components: H721 thermostat, Two screws and anchors, Installation manual, Cable label


Model Number: H721


UPC: 712215337375


Manufacturer: Heagstat


Manufacturer Part Number: H721


Unit Count: 1.0 Count


Color: White


Shape: Rectangular


Product Style: Cottage


Specification Met: energy


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Easy to install.
Easy to install. On older heat pumps the e and aux are w2 and we.
Reviewed in the United States on April 30, 2026 by jay dee

  • Adjustable temperature deadband that works correctly
This is a very versatile thermostat that will work in a variety of applications. I bought mine to use with an electric heatpump and wanted to be able to adjust the temperature span so that the heatpump would start and run for a longer cycle period. This is much easier and more efficient for the compressor on a heatpump. Many modern thermostates only allow only a CPH (cycles per hour) adjustment that will not limit the on-off times of your heating unit, since the thermostat will prioritize the temperature setting over CPH. This thermostat allows adjustment of the on and off temperature up to 2 degrees on the high and low temp (span) on either the AC or Heating side. It is accurate and so far has worked flawlessly, a bargain compared to the Honeywell thermostat it replaced. ... show more
Reviewed in the United States on December 29, 2024 by Desert Flash

  • Great product, it worked as stated.
Great product, it worked as stated.
Reviewed in the United States on May 29, 2025 by Rodolfo Cabrera

  • Adjustable wall thermostat
I would have loved it had I picked the right size for my home.It was nice and big
Reviewed in the United States on April 12, 2025 by Placeholder

  • good
It works. Just need professional help. Cause my compressor did not perform perfect as it does with the same kind of the AC units. So, in short look for compatibility.
Reviewed in the United States on January 15, 2026 by Patolito

  • Heagstat H721 Non-Programmable Heat Pump thermostat swap out was straight forward (read review)
The Heagstat H721 Non-Programmable Heat Pump Thermostat was a fairly easy swap out from a VIIVE TP-N-721. The plug on back plate was different. I killed the evaporator control voltage breaker. Then took a picture of the before thermostat wiring for color codes and connection point reference which was similar. Get help from an electrician if you don't know what you are doing electrically. This thermostat controls the compressor control relay, the reversing valve and the heat strips. I laid out the two thermostats documentation side by side for reference. Amazon delivered the thermostat the next day, so we did not have to go without too long. ... show more
Reviewed in the United States on August 23, 2025 by WizBob

  • non programable
Non-Programmable Heat Pump Thermostat, 2 Heat/1 Cool, which I wanted with switch for H1, H2, and cool.
Reviewed in the United States on July 30, 2025 by Aaron

  • This thermostat has no tech support.
I installed this thermostat and it worked great for one day before the screen went blank. Batteries are good and I connected a com wire to the C terminal providing 24 volts from R terminal to C terminal. Removed the thermostat and put in two new batteries and it still doesn't work. Pulled out the box and instructions but there is no information or phone number for support. I owned a commercial HVAC/refrigeration company for 30 years so I'm very familiar with the installation. I have no choice but to return it to Amazon. ... show more
Reviewed in the United States on July 29, 2021 by Jack Thompson

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