onlyfitidealboilers,, There is something I admire about you,not sure what,,maybe its your tanacity,or your sense of humour, or your stubborness maybe,, you cannot ever,never seriously think Ideal boilers are good from a service engineers point of view.They are the most insane,awkward unreliable stupid pieces of junk I have ever gone near in 30 years of working on gas appliances.