I am installing an oil fired central heating and hot water system.
I plan to use 22mm copper pipe as the main primary feed and return,
with 15mm pipe as the radiator supply and return.
Should I run the 22mm pipe as close as possible to all radiators?
Am I best avoiding long runs in 15mm pipe?
Can anyone direct me to good in depth guides on central heating
installation and plumbing?
Anything I have found so far is either very basic or generalised.So
any info on the installation for a semi detached house with 11
radiators and 1 hot water tank would be greatly appreciated.