ENER-J Smart WiFi Radiator Thermostat - Digital TRV Valve for Multi-Room Heating Control, Works with Alexa & Google Assistant
Pros
- Individual radiator control is far cheaper than a whole-house smart thermostat
- Open window detection helps avoid wasted heating
- Works with Alexa and Google Assistant for voice schedules
Cons
- Needs one TRV per radiator to fully zone a house, which adds up in cost
How it compares in Thermostats & Heating Controls
We list 33 thermostats & heating controls products, priced from £35.99 to £229.99. At £49.99 this one is the 6th cheapest of them — 27 cost more. The average across the subcategory is £115.05 and the midpoint is £119.69, so it lands £65.06 below the average.
Its 4.1-star score sits 0.14 below the thermostats & heating controls average of 4.24, with 25 of the 33 rated higher. Its 542 Amazon reviews make it the 19th most-reviewed here, against a subcategory average of 1,474.
Price position in Thermostats & Heating Controls
Splitting the subcategory into three price bands puts this product in the Budget band (£15.41–£79.80), which holds 12 of 36 products and averages £49.39 at 4.15 stars.
| Band | Range | Products | Average price | Average rating |
|---|---|---|---|---|
| BudgetThis one | £15.41–£79.80 | 12 | £49.39 | 4.15 |
| Mid-range | £84.99–£138.29 | 12 | £112.53 | 4.28 |
| Premium | £138.29–£229.99 | 12 | £181.98 | 4.32 |
About this product
The ENER-J Smart WiFi Radiator Thermostat – Model TRV604 – offers a convenient way to manage your home’s heating from anywhere. This smart valve allows you to take control of individual radiators within your property, ideal for those seeking greater efficiency and comfort in their multi-room heating setup. Compatible with gas radiators, it's designed for homeowners looking to optimise their energy usage without the need for complicated installations.
This device integrates seamlessly into a modern smart home thanks to its compatibility with Amazon Alexa and Google Assistant. Using voice commands, you can adjust temperatures hands-free – simply say, “Alexa, set the living room to 21 degrees”. The ENER-J Smart Valve also features advanced Open Window Detection, automatically switching off heating when a sudden temperature drop is detected, preventing wasted energy.
Installation is designed to be straightforward, requiring no specialist plumbing skills. It replaces your existing manual thermostatic head with its universal M30 x 1.5mm thread ensuring compatibility with most standard UK radiator valves. Key features include a graphical temperature display, app control for precise adjustments and an Auto Mode setting alongside Frost Protection and a Child Lock function for added safety.
The ENER-J Smart Valve operates on battery power and utilises Wi-Fi connectivity. It’s a budget-friendly option perfect for those wanting to begin exploring smart home heating solutions. However, remember that you will need one TRV per radiator to fully zone your house, which may increase the overall cost depending on the size of your property.
Related attributes
FAQ
What types of radiators is this thermostat compatible with?
The ENER-J Smart Valve features a universal M30 x 1.5mm thread, making it suitable for most standard UK gas radiator valves. It's designed for use with individual radiators rather than whole-house systems to maximize efficiency.
How does the open window detection feature actually work?
The valve utilizes a temperature sensor to detect sudden drops in ambient temperature, automatically switching off the heating when it senses a potential heat loss due to an open window. This prevents wasted energy without requiring manual intervention.
What kind of power source does this thermostat use?
This smart radiator thermostat is battery-powered, typically utilizing AAA batteries (not included). It provides reliable operation and eliminates the need for mains electricity connections.
Is it easy to install myself, or would I need a professional?
The ENER-J Smart Valve is designed for easy DIY installation; you simply replace your existing manual thermostatic head. No plumbing experience or special tools are required, though some basic screwdriver skills are recommended.
What features does the voice control functionality offer?
This thermostat seamlessly integrates with Amazon Alexa and Google Assistant, enabling hands-free temperature adjustments via voice commands like 'Alexa, set the living room to 21 degrees'. It’s compatible with Auto Mode for automated scheduling.
Does this thermostat have any safety features I should be aware of?
Yes, it includes a Child Lock feature to prevent accidental temperature changes and Frost Protection to safeguard against freezing pipes during winter. The Anti-Scale Function helps maintain optimal performance by preventing mineral buildup.
How does the price of this thermostat compare to similar smart thermostats on the market?
At around £34.99, the ENER-J Smart Valve offers a budget-friendly entry point into smart home heating control. While some premium models boast more advanced features, it provides core functionality for effective room temperature management.
What kind of display does this thermostat have?
The ENER-J Smart Valve features a graphical temperature display, providing clear and immediate visual feedback on the current room temperature. The backlight enhances visibility in dimly lit rooms.
Does the thermostat require any maintenance or cleaning?
Regular dusting with a soft cloth is recommended to keep the device clean and operating efficiently. Avoid using harsh chemicals or abrasive cleaners that could damage the surface.
What is the wattage of the heating element controlled by this thermostat?
This smart radiator thermostat controls up to 40 watts, suitable for most standard UK radiators. However, it's important to ensure your radiator’s maximum power rating doesn’t exceed this value.
£49.99
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