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About this item
• Supply: AC100- 240V
• Load Current: 3A
• Sensor: Only Internal Air Sensor
• Connection: Wired
• Programmable: Weekly Programmable
• Mounting Type: Flush Mounting
• Color: White
• Dimensions: 86x86x18 mm
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Technical Data
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TGR86 Underfloor Thermostat is applied in Electrical or Water or Gas Boiler Underfloor Heating System. TGR86-WPB series thermostats are used to control 3A Gas Boiler Heating Elements.
Underlfloor heating is to use electricity or water to achieve room underfloor central heating, is a kind heating way of transferring energy into heat energy to directly release heat to meet the central heating demand. Thermostat is the switch to realize intelligent temperature control. It can freely adjust the indoor temperature, and can be set on or off according to user requirements for a variety of time and a variety of preset mode of automatic operation to adjust the room temperature, so that it reaches a comfortable temperature.






Backlight Adjustable
TGR86 series thermostats feature adjustable backlight, bright for clear daytime viewing and dimmed for non-intrusive nighttime use. It ensures easy temperature reading anytime while adapting to your daily rhythm.

Temperature Hysteresis
This refers to the temperature value of the thermostat turning on and stopping heating. For example, the current setting temperature is 25 ℃, and the starting temperature difference is set to 0.5 ℃. Then, when the room temperature is below 24.5 ℃, the heating is turned on, and the heating is stopped when it reaches 25.5 ℃.

Weekly Programmable
The weekly programming function can set the temperature at different times.
1. Q: Can I install this thermostat by myself? Do I need to hire an electrician?
A: Regarding the installation of the thermostat, we first recommend that you operate in strict accordance with the steps in the product manual under the guidance of professionals to ensure standardized installation and stable subsequent operation of the device. If you choose to install it yourself, you must carefully read the manual in advance, fully master the installation process, wiring requirements and safety precautions before starting the operation, so as to avoid affecting the device's function or causing potential safety hazards due to improper operation.
2. Q: Is this thermostat compatible with gas boilers of other brands?
A: This thermostat is currently compatible with gas boilers of most brands. However, there are numerous brands and models of gas boilers available on the market, and the wiring specifications may vary between different products. To ensure accurate compatibility, we recommend that you first refer to the wiring diagram included with the product for verification. If you encounter any questions during the verification process or need to further confirm compatibility details, you may also contact your purchasing supplier or communicate directly with us through official customer service channels—we will provide you with professional compatibility guidance.
3. Q: What to do if the thermostat keeps turning the boiler on and off frequently?
A: This could be due to incorrect temperature settings (too narrow a range) or a faulty temperature sensor. Adjust the temperature differential setting if available, or check if the sensor is dirty or damaged. If the problem persists, contact technical support.
4. Q: How long is the product warranty period?
A: Our products come with a 2-year free warranty. If there is a quality issue (such as failure to turn on or unresponsive buttons) after you receive the goods, you can contact the after-sales customer service and provide the order number and photos of the problem. We will arrange for a replacement or repair.
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