Each and every Drayton TRV4 features unique non-stick plastic internals as standard to prevent sticking, and ensure that when the colder weather hits, TRVs will.
Wiser is simple and easy to install if your current controller is mounted on a standard wallplate and you have existing Thermostatic Radiator Valves (TRVs).
These thermostatic valves (TRV) can stick in the open or closed TRVs benifit from being fully opened then closed several times,then set to.
The Drayton TVR4 is a one I've used a fair few times. The important thing to understand about TRVs is that they work by shutting off the hot.
Has anyone used Drayton Wiser smart heating? I'm looking to replace all the trvs with smart ones to give some zoning control. . Open into the evening so I could call after work, quick to pick up the phone and helpful. I'm abroad at the moment but will be ordering the same kit as you and a few extra trv.
Jan 29, The radiator in our spare room is set to '*' but still gets hot. Days out · UK holidays · Going abroad · Camping · Family travel advice · Skiing . They are Drayton valves, if that makes any difference. How old are your TRVs, and how old? older and/or cheaper thermostatic heads sometimes stop working.