Drayton TRV4 Classic Thermostatic Radiator Valve TRV Body ONLY - no Head

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I want to replace the existing valve bodies with Drayton auto-balancing ones but am unsure whether I should use the TRV4 body (15 settings) or the EB body (6 settings). As the room cools, the Drayton thermostatic radiator valves open to allow more hot water through and maintain a constant temperature.

Personally I have never succeeded in balancing radiators using the temperature drop method - because it is just not stable. You can change your choices at any time by visiting Cookie preferences, as described in the Cookie notice. Thermostatic Radiator Valve Head,HOMGEN Professional 2Pcs TRV Thermostat Head Radiator Thermostat Head Only M30 x 1. And of course programmable and actually work in degrees C no silly *123456 so would not fit mechanical heads any more.The valve itself is fine the thermostatic has a seized so it can't be turned, at least not without excessive effort.

What I found most disappointing though, was the absolutely crap service provided by your designated supplier and the fact it took three attempts to get it delivered, in this case, Plumb Centre, Poole. And as the room temperature changes, the valve head expands, adjusting a pin in the valve body so that it opens or closes.

The only downside was that despite being despatched same day by Team-Supplies, it took Royal Mail 10 days to deliver.

I simply took out the worn-out gland seal and replaced it with the new one and it works like a charm.Discuss tips on features, updates, installation, and how to get the most out of your Wiser products. Browse universal radiator valve cap kits to replace an old or damaged cap, and radiator maintenance to enhance the life of your double or single panel radiator system. With smart radiator valves, you can enjoy all the benefits of thermostatic radiator valves, but with even more functionality. The problem was down to the 8 year old valves, some of which were sticking or were ceased in one position.