Hello,

How do I match a heating element to a towel radiator? If the rad. is
rated at 200W, do I fit a 200W element? OTOH if the radiator emits
heat as fast as the element supplies it, does this mean the radiator
will never heat up?

I had a 400W element in a 400W radiator but it took 20 minutes or so
to warm up, so you had to plan in advance to switch it on. I think
rapid warming by a bigger element would be useful.

What prevents the element from boiling the water if it is left on
forever? Did I read that they have a thermal cut out and that if
triggered they have to be sent back to the manufacturers to be reset
or have I misunderstood?

Mine are plumbed into the CH so I guess any problems of prolonged
heating any expansion and excess heat would be absorbed by the rest of
the system but I presume you have to be very careful if it is a stand
alone radiator?