I have just become the proud owner of a Stuart 504 gas fired boiler in a small steam plant. I have only ever used meths/solid fuel boilers before.
As the 504 is some years old (Stuarts stopped making them quite some time ago I gather), I wonder if anyone can help me with a copy of any instructions/manual please? Stuarts themselves confirmed to me today that they no longer have any.
It comes with gauge glass, pressure gauge and water pump clack/check valve, but no blowdown. Would I be advised to add a blowdown to bottom of gauge glass perhaps?
Hi A. some time ago I got a Stuart 504 complete with all bits and meths double burner ...first full strip ..check..renew washers set blow off safety valve for 65lb/sq/'' fit blowdown valve on sight glass (clears dirt and washes glass) if fitting a broken glass some are supplied at different diams mine is 0.1790'' they can be quite tricky to fit......if the old Asbestos heat shield is still fitted fit Ceramic in its place ...definitely get boiler tested... Happy steaming... John (Lancelot)