I've just found a switch for the underfloor heating in the kitchen of the house that we rent. We've never had it before so I'm a bit clueless as to how to use it. Do I set it to come on and off like the heating or should it be on all day as I guess the most energy is used to heat the floor up in the first instance? It seemed to take several hours to heat up after I first switched it on.
In the same kitchen (long and thin) there are also two other radiators - is it more economical to use these with the central heating or the underfloor heating?
Thank you for your help.