I have an ideal 120 response boiler which i think is quite old (we've been living at the house for 3 years and it was there when we moved in) we have been advised that it needs a new fan and that will cost about £300 and due to age should consider replacing it with a worcester which seems to be very popular these days. We have been told that the pressure guage should only go up when central heating is in use not with use of hot water (which works) pressure guage currenlty at 2 after 3 of us being away with no CH or hot water being used it rose to just over 2, our plumber has said he cannot replace the boiler for a couple of weeks as he is busy but that it should be fine, my queestion is at what point on an ideal 120 does the bar pressure becomne dangerous and should the pressure keep rising (even by a tiny amount) if no hot water or central heating are being used and is it rue hot water usage will not affect the bar pressure, is it safe to wait a couple of weeks for new boiler or should i act more quickly?
cheers H
cheers H