Will it work with your system?
Works well with
- Phone control and scheduling
- Heat pump systems
Check first if you have
- Line-voltage baseboard heat
- Millivolt gas heaters
What it controls
The Honeywell Home RTH2CWF 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.
On power, the listing doesn't say whether it needs a C wire. What a C wire does.
The maker states heat pump support ("for applications up to 2 heat, 2 cool conventional or 2 heat, 1 cool heat pump"), so it can drive an O/B reversing valve. What a heat pump needs from a thermostat.
Connectivity: Wi-Fi. It push Button, Amazon Alexa, Google Assistant, Apple HomeKit.
Tick your terminals in the wiring checker to see whether its maker's statements cover your system.
Also on the listing: dimensions of 30 in (D) x 8 in (W) x 6 in (H), a weight of 14.4 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 | RTH2CWF | Retailer |
|---|---|---|
| Model name | RTH2CWF | Retailer |
| Dimensions (seller) | 30"D x 8"W x 6"H | Retailer |
| Works with | Push Button, Amazon Alexa, Google Assistant, Apple HomeKit | Retailer |
| Features (seller) | Date Display, Fan Control, Temperature Display | Retailer |
| Connectivity | Wi-Fi | Retailer |
| Power | Corded Electric | Retailer |
| Display | LCD | Retailer |
| Mounting / installation | Wall Mount | Retailer |
| Batteries | 1 AAA batteries required. | Retailer |
| Material | Plastic | Retailer |
| Product weight | 14.4 ounces | Retailer |
| Heat pump support | for applications up to 2 heat, 2 cool conventional or 2 heat, 1 cool heat pump | Retailer |
Strong points and weak points
Strong points
- Heat pump support stated
- Works with Push Button, Amazon Alexa, Goo
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 RTH2CWF Smart Thermostat need a C wire?
Does the Honeywell Home RTH2CWF Smart Thermostat work with a heat pump?
Other smart thermostats with similar wiring
- Google Nest T4000ES Smart Thermostat
- Google Nest T4002ES Smart Thermostat
- Sensi ST25 Smart Thermostat
- Levoit LTM-A401S-WUS Smart Thermostat
All smart thermostats in one grid · Every Honeywell Home control listed
Our take
Shortlist it 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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