using wired valves for wall-mounted radiators

Hardware
1

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?

2

The same here.

I’m looking for wired solution to control TRVs each room individually.

The main point is to use separate temperature sensor for each room, and adjust valve related to this value.
Also I’d like to control comfort temperature remotely (via hass dashboard as least)

I found great solution here https://www.instructables.com/id/Smart-Radiator-Valve-With-Home-Assistant/ , but this is more low-level DIY solution :grinning:

Maybe, also will be great solution, to use some wired multi-room thermostat with external public API?

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