This Tuya Zigbee Smart Thermostat is designed for gas boiler & radiant floor heating system control. It has a elegant,sleeker design with a large square LED screen ensuring an excellent user experience of temperature control.
The HT-22B is an intelligent, APP-controlled Zigbee programmable thermostat designed for gas boiler and radiant floor heating systems. It offers seamless integration with Amazon Alexa and Google Assistant for convenient voice control via a Zigbee Gateway. Beyond its smart capabilities, this thermostat features an elegant, sleek design with a large square LED screen, ensuring both a modern aesthetic and an excellent user experience for precise temperature control.
As a professional thermostat manufacturer, we provide tailored solutions for installers and global distributors. Contact our sales team today to request a quote, inquire about technical support, or discuss OEM/ODM opportunities for your smart home projects.
Remote voice control temperature.
Bring you a more comfortable and convenient life.
Ultra-high-precision temperature control brings you the ultimate enjoyment

Mobile APP remote one-key control
Customize different schedules according to your habits

Workable for gas boiler with volt-free output or electrovalve with 230Vac output.

Details determine success or failure

Worried about accidentally touching it?
Child Lock Help you

Intelligence is not just talk, we are committed to every detail and hope to bring you the most comfortable home environment.


ISO Certified Production: Every HT-22B unit is manufactured in an ISO 9001:2015 and ISO 14001:2015 certified facility.
Compliance Standards: Fully certified with CE (RED/EMC/LVD), RoHS, and FCC marks for global market access.
OEM Experience: Backed by E-TOP Controls, a professional manufacturer with over 20 years of experience (since 2003) in ODM/OEM services
| Display | LED display |
| Protocol | Zigbee |
| Power Supply | 230Vac,50/60Hz |
| Set Temp. Range | 5~35 ℃ |
| Ambient Temp. | 0~50 ℃ |
| Relative Humidity | 85% |
| Accurancy | ±0.5 ℃ |
| Backlight | White/Black |
| Sensor | NTC 10K |
| Programmability | 7 days 4 periods ( Customizable) |
| Optional Function | Clock, External Sensor etc. |
| Protection Class | IP30 |
| Max Load | 3A |
| Material | ABS+PC (Rohs certificated) |
| Certificate | CE (RED/EMC/LVD), UKCA, FCC, ETL Listed, RoHS, REACH, ISO9001:2015, ISO14001:2015 |
| Housing | ABS to UL94-5 fire retardant plastic |
| OEM & ODM | 1. Customized logo and package |
| 2. Customzied software ( change to customer’s user interface and control logic) | |
| 3. Customized hardware ( change the PCB and schematic based on the request) |


A: Yes. E-Top (ETOP) is a leading professional ODM & OEM thermostat manufacturer in Xiamen, China, with over 20 years of expertise (since 2003) in HVAC control solutions.
A: Absolutely. As a factory, we provide custom logo printing services. For orders reaching a MOQ of 500pcs, this OEM service is provided free of charge to help build your local brand.
A: Yes, we support customized packing boxes with your unique design. The MOQ for custom packaging is 1000pcs, ensuring a professional retail look for your market.
A: We ensure fast delivery: 3 working days for samples and approximately 25 days for mass production orders.
A: We stand behind our quality with a 1-year warranty. Our products, including the HT-22B, are CE and ROHS approved for reliable performance.
A: The HT-22B is a Zigbee 3.0 smart thermostat (requires a gateway). It offers seamless Smart Life/Tuya App control for both Android and iOS, allowing for remote temperature management.
A: Yes. The HT-22B is fully compatible with Amazon Alexa and Google Assistant, enabling hands-free voice control for gas boiler and underfloor heating systems.