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

Product Information

New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging .

This behaviour has changed over the years - they definitely used to open more, making more noise as they did so and chewing through batteries faster. This unit would have got five stars except that the thread that goes into the radiator would benefit from from having a flange to prevent weeping.SCAMMER WARNING: Due to a spate of recent scam attempts (some successful) recently, if you're doing a deal in the classifieds, ONLY USE PAYPAL GOODS AND SERVICES UNLESS YOU KNOW THAT INDIVIDUAL PERSONALLY. Browse our full selection of radiator valves and discover the perfect product for your home heating today.

Radbot 1 is an intelligent thermostatic radiator valve (iTRV) which has been designed as a straight-forward replacement to a standard TRV but with superior energy savings.Most purchases from business sellers are protected by the Consumer Contract Regulations 2013 which give you the right to cancel the purchase within 14 days after the day you receive the item.

The problem was down to the 8 year old valves, some of which were sticking or were ceased in one position.I've seen a video for a competitor brand, where you just use an App, telling it the radiator size and type and it tells you what to set the valve to. The first main difference between thermostatic radiator valves and smart radiator valves is that you can select the exact temperature of your room, rather than a range. These locations include / but are not restricted to UK Highlands and Islands, UK Non Mainland, Isle of Wight and Northern Ireland. And of course programmable and actually work in degrees C no silly *123456 so would not fit mechanical heads any more.

Personally I have never succeeded in balancing radiators using the temperature drop method - because it is just not stable. And as the room temperature changes, the valve head expands, adjusting a pin in the valve body so that it opens or closes. I'd say that all TRVs have a common thread size but because they are calibrated differently, you need to match the manufacturer / model i. I think only Drayton/Schneider can answer that - and they don't currently participate on this forum. Going back to the Drayton valve-bodies, I'm surprised to see olde-worlde instructions to set them for an 11°C drop.

This Round Corner Thermostatic Radiator Valve and Lockshield Chrome Valves offers control over your radiator so you can heat your room in comfort.