Maybe I could pose question here as so far Nil response on UK.d-i-y. to such a request last night.
I have an ancient Thorn M series boiler (M44 or M55) I think. The label with it's ID and operating gas pressure have long gone.
It has been playing up a bit in the last few days and I want to check that it was set to the correct burner pressure. Has anyone got one of these or know where to find out the correct figure.
I don't really want to get a 'man' out to it as being a 70's boiler they are bound to want to renew it for some horrendously complex beast and besides that I'm a tight g*t with deep pockets and short arms!
Any help welcomed
TIA
Bob