H helpsy Plumbers Arms member Plumber Gas Engineer Messages 1,754 Mar 11, 2010 #1 Just after a bit of a run down on converting a vented system to a sealed system.
B Billy Bob Bob Mar 11, 2010 #2 cut out vent,cold feed [and pump]if system boiler install expansion vessel,loop pressure gauge safety valve over riding factor if boiler existing it is ESSENTIAL it has a high limit stat
cut out vent,cold feed [and pump]if system boiler install expansion vessel,loop pressure gauge safety valve over riding factor if boiler existing it is ESSENTIAL it has a high limit stat