Will it work with your system?
Works well with
- Phone control and scheduling
- Systems the maker's checker confirms
Check first if you have
- Line-voltage baseboard heat
- Millivolt gas heaters
What it controls
The Honeywell Home THX321WFS2001W Smart Thermostat is a smart Wi-Fi thermostat. Its listing doesn't spell out which heating and cooling systems it supports, so run the maker's compatibility checker before you buy.
Power is where installs stall: the listing doesn't say whether it needs a C wire. C-wire options.
The listing doesn't state heat pump support; if you have an O/B wire, confirm with the maker before ordering. Heat pump wiring.
Connectivity: Wi-Fi. It amazon Alexa.
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 5.8 in (D) x 3.1 in (W) x 6.2 in (H), a weight of 9.6 ounces and a digital.
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 | THX321WFS2001W | Retailer |
|---|---|---|
| Model name | Honeywell THX321WFS2001W T10 Pro Smart Thermostat with RedLINK | Retailer |
| Dimensions (seller) | 5.8"D x 3.1"W x 6.2"H | Retailer |
| Works with | Amazon Alexa | Retailer |
| Features (seller) | can add up to 20 remote sensors | Retailer |
| Connectivity | Wi-Fi | Retailer |
| Power | Ac/dc | Retailer |
| Voltage | 24 V | Retailer |
| Display | Digital | Retailer |
| Mounting / installation | Wall Mount | Retailer |
| Batteries | 2 AA batteries required. | Retailer |
| Material | Plastic | Retailer |
| Product weight | 9.6 ounces | Retailer |
Strong points and weak points
Strong points
- Works with Amazon Alexa
Weak points
- C-wire need not stated
- Needs Wi-Fi for smart features
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 Honeywell Home THX321WFS2001W Smart Thermostat need a C wire?
Does the Honeywell Home THX321WFS2001W Smart Thermostat work with a heat pump?
Other smart thermostats with similar wiring
- Riseem STN701W-Blue Smart Thermostat
- meross MTS300 Smart Thermostat
- Google Nest BH1254-US Smart Thermostat
- Vine TJ550 Smart Thermostat
All smart thermostats in one grid · Every Honeywell Home control listed
Our take
A fit for phone control and scheduling.
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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