Evohome with 'dual fuel' bathroom radiator?

[Libarch]

I have Evohome installed throughout my home. I intend to add a shower room radiator / heated towel rail to the system at some point, and I know that some of these can be used in 'dual fuel' mode, ie heated via normal CH controls but also incorporating an electric element to allow heating during summer months when the central heating is generally not running. Does anyone have any experience of installing these and using them with Evohome? Or using the CH mode with Evohome, and controlling the electric mode with something else? I can see various snags, eg presumably it's not a good idea for both modes to operating simultaneously, so how to ensure that doesn't happen.
Thanks

[filbert]

We have ours connected to the heating system but not controlled by Evohome. It does have a TRV but it’s set wide open, I’ve never felt the need to turn it down. In the heating season, it gets hot when other radiators are on. The electric element is controlled by a time switch and a thermostat. I sometimes turn off the electric element in winter but often don’t bother. My reasoning is that the thermostat will turn off the power when the towel rail is warmed by the water. I’ve not done any tests, though.

There’s also a normal radiator, controlled by Evohome, in the bathroom. It all seems to work.

[Libarch]

This is helpful, thanks

[filbert]

PS: I bought an element with thermostat and built in timer with a remote control. Next time I'd go for a simple thermostat and use a separate time switch (could, I suppose, be a BDR91, controlled by Evohome, if it’s not too high a current and you have enough zones). The remote is far too fiddly with a range of modes - and, after a power cut, it defaults to "off" and it has to be cycled back to timer mode manually.

[bruce_miranda]

Depending on the wattage of heating element you can use a BDR91 in Electric Zone mode and control the heating element inside the towel radiator.