Will it work with your system?
Works well with
- App control of baseboard heat
- Room-by-room electric heat
Check first if you have
- Furnaces, boilers and heat pumps (24 V)
- Loads above its rating
What it controls
The King Electric K902-DB-W Smart Line-Voltage Thermostat is a smart line-voltage for electric heat that runs at line voltage (240 V per the maker).
The listing doesn't state a maximum load. Don't install it until you've confirmed the rating covers your heaters' total watts. How to work out the load.
It's double pole. Double-pole models break both live legs of a 240-volt circuit and usually give a true off position.
Connectivity: Wi-Fi, so the schedule and setpoint can be changed from a phone.
Line voltage can kill: switch the breaker off and confirm it's dead before touching the wires, and use a licensed electrician if you're unsure. Line vs low voltage.
Also on the listing: dimensions of 0.88 in (D) x 2.75 in (W) x 5 in (H), a weight of 16 ounces and a lcd.
Warranty, per the listing: 1 year limited warranty.
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 | K902-DB-W | Retailer |
|---|---|---|
| Model name | Hoot | Retailer |
| Dimensions (seller) | 0.88"D x 2.75"W x 5"H | Retailer |
| Works with | Touchscreen | Retailer |
| Features (seller) | Lockable, Programmable, Temperature Display, Vacation Mode | Retailer |
| Connectivity | Wi-Fi | Retailer |
| Power | Corded Electric | Retailer |
| Voltage | 240 V | Retailer |
| Display | LCD | Retailer |
| Mounting / installation | Wall Mount | Retailer |
| Material | Plastic | Retailer |
| Warranty | 1 year limited warranty. | Retailer |
| Product weight | 16 ounces | Retailer |
| Schedule | Programmable | Retailer |
| Poles | Double Pole | Retailer |
Strong points and weak points
Strong points
- Double Pole
- Wi-Fi control
- 240 V
Weak points
- Household-voltage wiring
- Max load not stated
- One thermostat per heater circuit
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
How many heaters can the King Electric K902-DB-W Smart Line-Voltage Thermostat control?
Can the King Electric K902-DB-W Smart Line-Voltage Thermostat run a furnace or heat pump?
Other line-voltage thermostats with similar wiring
Our take
Suited to app control of baseboard heat.
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.
Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure