In a 2500sq ft house, what size should all the rad feed be? The existing set up is 28mm to the top of the house (3 story) and off that with 22 mm, then 15mm to each rad, sometimes piggybacking from rad to rad with 15mm.
I'm doing an extension which involves new boiler and location and entire ground floor joists ate being replaced with concrete. So all GF pipework will need redoing - I have done a lot of plumbing in the past so intend to redo all the pipework, but is there an advantage to using 22mm or should I go straight to 15?
Thx
I'm doing an extension which involves new boiler and location and entire ground floor joists ate being replaced with concrete. So all GF pipework will need redoing - I have done a lot of plumbing in the past so intend to redo all the pipework, but is there an advantage to using 22mm or should I go straight to 15?
Thx
