Shelly Blu TRV & Blu Gateway Gen3, Bluetooth-Operated Smart Thermostatic Valve, Smart Thermostatic Radiator Valve, Temperature…
Shelly
Best for
Best overall
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 1 trusted source
Current price
$64.99
Updated May 18, 2026 · 1 min read
Sources behind this verdict
10 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the Shelly Blu TRV is the most credible actual smart radiator valve in this candidate pool, but the consensus is qualified rather than enthusiastic. A detailed write-up posted to community.home-assistant.io reported that the valves make small audible adjustments even when the heating isn't running, to the point that the author eventually took manual control of all the units — a problem echoed by general smart-TRV noise complaints elsewhere on r/homeassistant. On the positive side, posts in the Shelly IoT community group describe installation as straightforward, the rotary knob as high-quality, and pairing through the Blu Gateway Gen3 as reliable once configured.
What reviewers liked
- Specialist Home Assistant communities confirm reliable integration via the Blu Gateway Gen3 and Bluetooth proxying
- Installers in the Shelly community group describe setup as easy and the rotary knob as feeling premium
- Battery-powered (2x AA) operation with claimed ±0.1°C accuracy per the product listing
- Works locally through Home Assistant rather than depending on a vendor cloud
Where it falls short
- A community.home-assistant.io reviewer flagged audible motor micro-adjustments significant enough that they disabled automatic control
- r/shellycloud posters criticized build quality as feeling cheap relative to the price
- Requires the separate Blu Gateway Gen3 to bridge Bluetooth to Wi-Fi/Home Assistant, adding cost and a point of failure
- Amazon rating of 4.0 with only ~100 reviews is a thin sample compared to mainstream smart thermostats
- No high-trust independent lab testing surfaced in the signals to corroborate manufacturer accuracy claims
Across the reviewers we read, the Shelly Blu TRV is the most credible actual smart radiator valve in this candidate pool, but the consensus is qualified rather than enthusiastic. A detailed write-up posted to community.home-assistant.io reported that the valves make small audible adjustments even when the heating isn't running, to the point that the author eventually took manual control of all the units — a problem echoed by general smart-TRV noise complaints elsewhere on r/homeassistant. On the positive side, posts in the Shelly IoT community group describe installation as straightforward, the rotary knob as high-quality, and pairing through the Blu Gateway Gen3 as reliable once configured.
Specialist Home Assistant threads are the strongest signal here: contributors confirm the Bluetooth-proxy architecture works as advertised once the Gen3 gateway is in place, and r/ShellyUSA posters report quick response times and reliable behavior on the broader Shelly platform. The pushback is concentrated on r/shellycloud, where one detailed install report called the build quality cheap and the experience below expectations. Independent lab testing is absent from the signals, so this verdict rests on community consensus rather than measured performance.
For buyers who already run Home Assistant or the Shelly ecosystem, the integration story is the main reason to choose it over generic Tuya-based valves. Buyers without an existing Shelly footprint should budget for the Blu Gateway, factor in the noise complaints if bedrooms are involved, and treat the 4.0-star Amazon rating as a fair reflection of the mixed reception.
- Shelly Blu TRV - Smart Thermostatic Radiator Valve. Enjoy comfort and efficiency with precise climate control, sleek design, and quick response times. Bluetooth-operated and Wi-Fi-enabled (*gateway required), it offers long battery life and seamless smart home integration.
- The new standard for comfort living - Shelly BLU TRV has precise temperature control, maintaining your desired comfort level with an accuracy of ±0.1°C, ensuring a consistent and comfortable environment. For those moments when you need a quick warm-up, the Boost Mode can swiftly bring your room to the perfect temperature in no time.
- Customized heating made easy - Smart scheduling allows you to align your heating with your daily routines, optimizing both comfort and energy efficiency. For enhanced temperature accuracy, the Shelly BLU TRV can support external sensors like Shelly BLU H&T and Shelly BLU Door/Window, which makes it a versatile addition to any home heating system.
- A perfect blend of comfort and efficiency - Ensure your home is cozy when you arrive, while reducing unnecessary energy usage when you're away. With our app, you can easily create smart heating schedules that adapt to your lifestyle - keeping your home comfortable when needed and helping you save on energy costs when it's not.
- Shelly is one of the fastest-growing Smart Home brands, offering automation solutions for homes, buildings, and businesses. Device include a 3-year warranty and professional support. With the Shelly Smart Control App, you can configure and manage devices remotely, get real-time notifications, and create personalized scenes by combining Shelly devices to trigger automated actions across your smart home.
I just installed the new Shelly Blu TRV and it's far below my expectations. Build quality is done kind of cheap.
They just work automatically as a Bluetooth proxy with no further configuration? As soon as there connected to home assistant?
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