Morning guys
1st time I have been involved in ufh if I am honest.
Nearly complete 1st fix of a part re-wire plus double extension job- and now customer/builder has decided they want electric UFH throughout whole of ground floor!
Originally it was just in upstairs small bathroom- which is supplied by 13a switch fuse spur off of upstairs ring.
But now for downstairs!!:
The builder is using 150w/m2 topps tiles mat.....
So kitchen is 16.26m2- so after taking off 10% (for slight gaps around perimeter etc) =9.5amps
-not too hard having this on own 10/16a circuit and one wall programmer for this zone
Then Breakfast area is 11.19m2
And Dining room is 15.85m2
-but they want both of these mats/zones to be controlled by 1 wall programmer (max load 16a)
so for both zones -10% (for slight gaps around perimeter etc) around 15.77amps
-again not to hard to get own circuit over to here (rather than put on ring)
just stick on 16a/20a mcb and have a 20a dp switch rather than 13a spur?
cheers guys!
1st time I have been involved in ufh if I am honest.
Nearly complete 1st fix of a part re-wire plus double extension job- and now customer/builder has decided they want electric UFH throughout whole of ground floor!
Originally it was just in upstairs small bathroom- which is supplied by 13a switch fuse spur off of upstairs ring.
But now for downstairs!!:
The builder is using 150w/m2 topps tiles mat.....
So kitchen is 16.26m2- so after taking off 10% (for slight gaps around perimeter etc) =9.5amps
-not too hard having this on own 10/16a circuit and one wall programmer for this zone
Then Breakfast area is 11.19m2
And Dining room is 15.85m2
-but they want both of these mats/zones to be controlled by 1 wall programmer (max load 16a)
so for both zones -10% (for slight gaps around perimeter etc) around 15.77amps
-again not to hard to get own circuit over to here (rather than put on ring)
just stick on 16a/20a mcb and have a 20a dp switch rather than 13a spur?
cheers guys!