Tuya MH1823 Smart Home Thermostat for Water Heating, Gas Boiler, and Electrical Heating: WiFi connectivity with 2.4G support
For the homeowner who wants precise control over their heating system, this smart thermostat is your reliable partner. Whether you're managing a gas boiler for cozy winter mornings or an electric heating setup to keep energy bills in check, it adapts to your daily life. Think of it as your personal climate assistant, offering peace of mind with features like frost protection that automatically kicks in at 5°C to prevent pipe damage, and window open detection that pauses heating when a draft is sensed. You'll appreciate how the capacitive touch buttons respond smoothly to your adjustments, making it easy to set temperatures from 5°C to 35°C without fuss.
This device goes beyond basic temperature control by integrating seamlessly into your smart home ecosystem. Use the TuyaSmart app to program a 7-day schedule with four customizable periods, so your home is always comfortable when you arrive. With Alexa compatibility and Google Assistant support, you can adjust settings with a simple voice command, while geofencing ensures heating turns on as you approach. The two-way communication via the app alerts you to temperature thresholds or HVAC issues, giving you real-time insights into your energy usage. It's designed for practical benefits, like the anti-freeze function that safeguards your system during cold snaps, all housed in a durable ABS+PC build with IP20 protection for everyday reliability.
Features
- Compatible with Amazon Alexa and Google Assistant voice control
- 7-day programmable with 4 customizable periods
- Geofencing and remote control via smartphone app
- Frost protection and anti-freeze function
- Digital display with temperature range 41°F to 210°F
- WiFi connectivity with 2.4G support
General specs
- Brand: Tuya
- Model: MH1823
- Seller: Joom
- ID: 692faab1c7ede8011d649828
- C-Wire: Required
- Voltage: 120, 240
- Material: Plastic
- IP Rating: IP20
- Max Power: 3600
- Dimensions: 4.72, 3.94, 1.18
- Scheduling: Weekly
- Max Current: 3
- Connectivity: Wi-Fi
- Display Type: Digital
- Power Source: Hardwired
- Mounting Type: Wall Mount
- Control Methods: App
- OS Compatibility: Android, iOS
- Compatible Systems: Water Heating, Gas Boiler, Electric Boiler
- Smart Home Compatibility: Tuya
- 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
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SASWELL T18BUTW-7-WIFI(TY) Black
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meross MTS200 White Works with HomeKit, Alexa, and Google Home
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Honeywell Home RTH2SMC/N White WiFi + app connectivity for remote control
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| Brand | Tuya | SASWELL | meross | BSEED | EdgeAnt | Honeywell Home |
| Model | MH1823 | T18BUTW-7-WIFI(TY) | MTS200 | ST-01 | EHVC523-Mirror | RTH2SMC/N |
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| Price | $42.85 | $69.99 | $79.99 | $129.99 | $99.99 | $74.75 |
| Seller | Joom | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | January 27, 2026 | January 21, 2026 | January 21, 2026 | December 6, 2025 | January 21, 2026 | January 21, 2026 |
| C-Wire | Required | Required | Required | Required | Required | |
| Voltage | 120, 240 | <num_from>, <num_to> | 120, 240 | 24 | 24 | |
| Material | Plastic | Plastic | Plastic | Plastic | ||
| IP Rating | IP20 | IP20 | IP20 | |||
| Dimensions | 4.72, 3.94, 1.18 | 2.95, 1.69, 4.64 | 3.43, 1.17, 5.13 | |||
| Scheduling | Weekly | Weekly | 7-Day | 7-Day | 7-Day | |
| Connectivity | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi |
| Display Type | Digital | LED, Color LCD | LCD | LCD | Mirror | LCD |
| Power Source | Hardwired | Wired | Hardwired | Hardwired | Hardwired | Hardwired |
| Mounting Type | Wall Mount | Wall-Mounted | Wall Mount | Wall Mount | Wall Mount | Wall Mount |
| Control Methods | App | App, Voice, Touchscreen | App, Voice | App, Touchscreen, Voice | App, Voice | App, Buttons |
| OS Compatibility | Android, iOS | Android, iOS | Android, iOS | Android, iOS | Android, iOS | |
| Compatible Systems | Water Heating, Gas Boiler, Electric 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 | Air Conditioner, Gas Boiler, Water Heating | Air Conditioner, Gas Boiler, Electric Boiler, Water Heating | |
| Smart Home Compatibility | Tuya | Amazon Alexa, Apple HomeKit, Google Assistant, SmartThings | Amazon Alexa, Google Assistant | Amazon Alexa, Google Assistant, Tuya | Amazon Alexa, Google Assistant, Apple HomeKit | |
