What power are they? Actually probably a bit late now as boiler is going in on thursday so all has to be done before then.
Picket up a 400W from toolstation but not sure if it is a bit overkill. One site said to use the smallest possible for summer only use. Might go get a lower power one and ask the heating guy what he thinks.
It’s for my flat I am doing up to rent so hoping it will be used instead of leaving towels over the radiators.
1 bed flat so no banisters, no quick route to hang them outside, when I used to hang my towels outside it would end up raining and yup the bathroom is well ventilated with a permanently on fan which speeds up when the light goes on.
I wasn’t sure if you should close the valves or not. Convection currents should keep most of the warm water in the rad and some losses from conduction but if you close them then there is no room for thermal expansion of the water.