If it's a Myson Appollo try Baxi-Potterton. Potterton became Potterton-Myson before amalgamating into Baxi-Potterton.
There used to be a very old boiler called a Thorn Appollo but i doubt your's is one of those. I haven't seen one in 15 years.
T.h.s
May 2007
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