Tuya ZWT198 Smart WiFi Thermostat for Water Heater: Wireless app control
This smart Wi-Fi thermostat is designed for homeowners who want precise control over their water heater or boiler, especially for managing energy costs during peak hours. It transforms a standard appliance into an efficient system you can adjust from anywhere.
Set your schedule for the week with four daily periods, so hot water is ready when you need it without wasting energy. The touchscreen responds smoothly, and the app sends a confirmation buzz to your phone after each change. Use voice commands with Alexa or Google Assistant to adjust the temperature hands-free while cooking or cleaning.
Install it in minutes with standard wiring, and it remembers your settings during a power outage. Share access with family members to coordinate usage, reducing arguments over thermostat settings. This thermostat offers reliable performance with accurate temperature control, helping you save on utility bills effortlessly.
Features
- Voice control with Alexa and Google Assistant
- Zigbee protocol connectivity
- 7-day programmable scheduling
- Touch key operation
- Group control and family sharing
- Temperature range 41°F to 95°F
- IP30 protection rating
- Load capacity up to 16A
- Power consumption less than 2W
- Memory function during power outage
- Child lock safety feature
- Suitable for electric/gas boilers
- Customizable software and hardware
- 1-year warranty
- Wireless app control
General specs
- Brand: Tuya
- Model: ZWT198
- Seller: Joom
- ID: 6917fa90dae24301fb42b35a
- C-Wire: Required
- Material: Plastic
- Scheduling: Weekly
- Connectivity: Wi-Fi
- Power Source: Hardwired
- Mounting Type: Wall Mount
- Control Methods: App, Voice
- OS Compatibility: Android, iOS
- Compatible Systems: Water Heating
- Smart Home Compatibility: Amazon Alexa, Google Assistant, Tuya, Yandex Alice
- First listed by seller: 12/10/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Tuya ZWT198 White Wireless app control
|
Provirtec TH-01 Black 7 days programmable for energy saving
|
meross MTS200 White Works with HomeKit, Alexa, and Google Home
|
BSEED ST-01 Black
|
Honeywell RENEWRTH9585WF/U Silver Energy Star certified for energy savings
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SASWELL T18BUTW-7-WIFI(TY) Black
|
|
| Brand | Tuya | Provirtec | meross | BSEED | Honeywell | SASWELL |
| Model | ZWT198 | TH-01 | MTS200 | ST-01 | RENEWRTH9585WF/U | T18BUTW-7-WIFI(TY) |
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| Price | $88.59 | $79.99 | $79.99 | $129.99 | $89.99 | $69.99 |
| Seller | Joom | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | January 27, 2026 | January 21, 2026 | January 21, 2026 | December 6, 2025 | January 16, 2026 | January 21, 2026 |
| C-Wire | Required | Required | Required | Required | Required | |
| Material | Plastic | Plastic | Plastic | |||
| Scheduling | Weekly | 7-Day | Weekly | 7-Day | Flexible programming | |
| Connectivity | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi |
| Power Source | Hardwired | Hardwired | Hardwired | Hardwired | Hardwired | Wired |
| Mounting Type | Wall Mount | Wall Mount | Wall Mount | Wall Mount | Wall Mount | Wall-Mounted |
| Control Methods | App, Voice | App, Touchscreen | App, Voice | App, Touchscreen, Voice | Touchscreen | App, Voice, Touchscreen |
| OS Compatibility | Android, iOS | Android, iOS | Android, iOS | Android, iOS | ||
| Compatible Systems | Water Heating | Air Conditioner, Gas Boiler | Electric Baseboard, Convector, Fan-Forced Heater, In-Ceiling Radiant | Air Conditioner, Electric Boiler, Electric Floor Heating, Fan Coil Unit, Gas Boiler, Hydronic Floor Heating, Water Heating | Forced air (gas, oil or electric), Hot water and steam, Heat pumps with electric backup | |
| Smart Home Compatibility | Amazon Alexa, Google Assistant, Tuya, Yandex Alice | Amazon Alexa, Apple HomeKit, Google Assistant, SmartThings | Amazon Alexa, Google Assistant | |||
| Voltage | 24 | 120, 240 | <num_from>, <num_to> | |||
| IP Rating | IP20 | |||||
| Max Power | 1920, 3840 | |||||
| Dimensions | 3.94, 3.86, 0.7 | 2.95, 1.69, 4.64 | 4.5, 3.5, 0.88 | |||
| Max Current | 16 | |||||
| Display Type | LCD | LCD | LCD | Touchscreen | LED, Color LCD | |
