Anyone clever enough to explain!
Just going through layout of out of the floors, before I go back to designer and sounding stupid, I thought I could ask a stupid question on here without feeling embarrassed. Why are there multiple loops in some of the rooms? There are thermostats on each area so for instance, if I want the longe to be 20 degrees and the landing 18 degrees how the hell does that work, if half the loop is in another room? Full of stupid questions me
FWIW, we have all our UFH as a single zone, as we don't like keeping doors closed all the time. Flow temperature on our system is typically about 26°C to 28°C. UFH heat output averages about 6 W/m² of heated floor area, with a maximum in extremely cold weather of about 22 W/m², but that's for a well-insulated house that only needs a small amount of heating.
Changing the flow temperature increases the heat output per m², by raising the floor surface temperature. For a room temperat