Will it work with your system?
Works well with
- Simple, set-and-forget control
- Furnace and central air systems
Check first if you have
- Phone or voice control
- Line-voltage baseboard heat
What it controls
The Heagstat H721 Non-Programmable Thermostat is a non-programmable. Systems, per the maker: Compatibility: Works with 2H/1C heat pump systems (with Aux or Emergency heating).
Power is where installs stall: the listing doesn't say whether it needs a C wire. C-wire options.
The maker states heat pump support ("Heagstat H721 2 Heat/1 Cool Non-Programmable Heat Pump Thermostat, Manual Operation COOL/H"), so it can drive an O/B reversing valve and auxiliary heat. What a heat pump needs from a thermostat.
Stages, per the maker: 2 Heat/1 Cool. A second-stage wire (W2 or Y2) at your old thermostat needs matching support here. Single- and two-stage systems.
Schedule: Non-Programmable. Program sleep and away setbacks once and it runs them every week.
Power, per the listing: Dual Powered.
Not sure of your wiring? The wiring checker reads your system from the terminal letters and checks it against this model's statements.
Also on the listing: dimensions of 0.98 in (D) x 4.72 in (W) x 3.86 in (H), a weight of 7.68 ounces and a lcd.
Compatibility and specs
These come from the maker's listing for this exact model; the source of each is marked. Anything the maker leaves out is marked not stated.
| Model number | H721 | Retailer |
|---|---|---|
| Dimensions (seller) | 0.98"D x 4.72"W x 3.86"H | Retailer |
| Works with | Push Button | Retailer |
| Features (seller) | 5-minute adjustable compressor delay protection, Adjustable temperature swing: 0.2°F–2°F, Display range: 41°F–95°F; Control range: 44°F–90°F, Low Battery Indicator, Manual temperature calibration: -4°F ~ +4°F | Retailer |
| Connectivity | Wired | Retailer |
| Power | Dual Powered | Retailer |
| Voltage | 0.0, 24 | Retailer |
| Display | LCD | Retailer |
| Mounting / installation | Wall Mount | Retailer |
| Product weight | 7.68 ounces | Retailer |
| Material | Plastic | Retailer |
| Works with systems | Compatibility: Works with 2H/1C heat pump systems (with Aux or Emergency heating) | Retailer |
| Heat / cool stages | 2 Heat/1 Cool | Retailer |
| Heat pump support | Heagstat H721 2 Heat/1 Cool Non-Programmable Heat Pump Thermostat, Manual Operation COOL/HEAT/Emergency Heating | Retailer |
| Auxiliary heat | Emergency Heat | Retailer |
| Schedule | Non-Programmable | Retailer |
Strong points and weak points
Strong points
- Non-Programmable
- Power: Dual Powered
- No Wi-Fi or account needed
- Heat pump support stated
Weak points
- No remote control
Wiring and install notes
- Compatibility statements are the maker's own. Confirm with the maker's compatibility checker, turn the power off before wiring, and leave line-voltage and furnace work to a licensed electrician or HVAC technician.
Thermostats to compare it with
FAQ
Does the Heagstat H721 Non-Programmable Thermostat need a C wire?
What systems does the Heagstat H721 Non-Programmable Thermostat work with?
Other programmable and basic thermostats with similar wiring
Our take
A fit for simple, set-and-forget control.
Where to get it
The link goes to this exact model's listing. Check that the box includes the trim plate or C-wire adapter you need, and confirm your wiring with the maker's compatibility checker before you order.
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