I have a lot of radiators and I’m not keen to have battery operated TRVs on all of them.
I looked at the 2-wire actuators, most of them are promoted for underfloor heating manifolds but I’m told they fit regular radiators too.
It appears they can be controlled easily using a smart socket or inline relay.
However, they can only be fully open or fully closed (on / off) whereas the wireless battery operated TRVs can also partially open the valve to help maintain the temperature after a target is reached.
The specs also say that the wired actuators take 3-5 minutes to fully open or close.
Has anybody tried using wired valves like this on wall mounted radiators or under floor heating?
Does the software need to compensate for the opening/closing delay?
Are there any full TRVs that can be connected to a power supply all the time, even if it is with a USB charger?