i dont install boilers under 300 kw
so it makes no odds to me
i aint quoting
35 kw combi
walk in the park
96 yev had a good run out of it
vaillant used to be good before they discovered plastic
nuts thats where i left my henry
dont worry about ignorance bonny lad we all had to learn :wink:
whats the zone valve feedingthe 2 port on the left of your pic ?
if its working ok leave it alone oh and ignore the pretentious pratt that thinks he knows everythinghe wont explain it cos he dont understand it give him time to ask some advice then im sure he will be back with some load of cobblers :roll: