Will it work with your system?
Works well with
- Phone control and scheduling
- Heat pump systems
Check first if you have
- Walls without a C wire, unless you add one
- Line-voltage baseboard heat
- Millivolt gas heaters
What it controls
The Vine TJ550 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.
Check your wall for a C terminal: its maker says it needs a C wire ("Besides, a common wire (C-wire) is required for all vine thermostats"). The C wire guide covers adapters.
The maker states heat pump support ("Heat Pump (4H/2C)"), so it can drive an O/B reversing valve. What a heat pump needs from a thermostat.
Stages, per the maker: 2h/2c. A second-stage wire (W2 or Y2) at your old thermostat needs matching support here. Single- and two-stage systems.
Connectivity: Wi-Fi. It amazon Alexa, Android, Google Assistant, iOS.
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 3.54 in (W) x 3.54 in (H), a weight of 8.8 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 | TJ550 | Retailer |
|---|---|---|
| Dimensions (seller) | 0.98"D x 3.54"W x 3.54"H | Retailer |
| Works with | Amazon Alexa, Android, Google Assistant, iOS | Retailer |
| Features (seller) | Auto-Away Mode, Date Display, Geofence Technology, Lockable, Programmable | Retailer |
| Connectivity | Wi-Fi | Retailer |
| Power | Corded Electric | Retailer |
| Voltage | 24 V | Retailer |
| Display | LCD | Retailer |
| Mounting / installation | Wall Mount | Retailer |
| Product weight | 8.8 ounces | Retailer |
| Material | Glass, Plastic | Retailer |
| C-wire | Besides, a common wire (C-wire) is required for all vine thermostats | Retailer |
| Heat / cool stages | 2h/2c | Retailer |
| Heat pump support | Heat Pump (4H/2C) | Retailer |
Strong points and weak points
Strong points
- Heat pump support stated
- Stages: 2h/2c
- Works with Amazon Alexa, Android, Google
Weak points
- Needs a C wire (maker)
- 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 Vine TJ550 Smart Thermostat need a C wire?
Does the Vine TJ550 Smart Thermostat work with a heat pump?
Other smart thermostats with similar wiring
- Honeywell Home RTH2CWF Smart Thermostat
- Vine TJ610E Smart Thermostat
- Google Nest T4000ES Smart Thermostat
- Google Nest T4002ES Smart Thermostat
All smart thermostats in one grid · Every Vine control listed
Our take
Suited to 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.
Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure