Yours had a SV ? Then it is a Weldon
Should be no exhaust line and no regulator , chimney should short and fat .
Cheers
Dennis
Thanks for clearing that up Dennis!
It is nice having the regulator so I will probably keep it... The top of the boiler is full of dents, so this one is far from perfect.
This one has travelled the world, I bought it from a friend in the UK