by geoff1057 »
Mon Feb 09, 2009 12:37 pm
am i right in saying, on a double pipe heating system, the main feed and return pipes are 22mm, and teeing off to radiators, feed and return pipes are 15mm. ..........and if i added another rad i tee into the 22mm feed and 22mm return.....with 15mm speedfit , would that be ok ??? Thanks