Just wondering if i should extend 22mm Flow & Return. I have a combi boiler where the 22mm goes upstairs then feeds through the bathroom on to the landing then before it goes to any rads its reduced to 15mm then tees off feeding one rad downstairs then tees again feeding 3 downstairs & 2 upstairs then a little further on it tees off 1 rad downstairs and again furthur on feeds the last bedroom rad upstairs.
All these Tees are within a 2-3m stretch before they branch off to the rads. Question is should i extend the 22mm and tee off straight from this (using 15mm to rads or just leave everything being teed from the original 15mm that was reduced from 22mm.
All these Tees are within a 2-3m stretch before they branch off to the rads. Question is should i extend the 22mm and tee off straight from this (using 15mm to rads or just leave everything being teed from the original 15mm that was reduced from 22mm.