How do I catch the flue?
QI am installing a Hardy Hamlet 5 multi-fuel stove and want to use a twin-wall flue system. The only system I have seen for boats is the Morso system but this does not fit the collar on the Hamlet 5. Can you help? ANDY OXLEY, via email
ATONY REPLIES… You don’t need a marine flue: any twin-wall should work. The Hamlet 5 only has a 102mm (4in) flue outlet, but the maker lists adapters to allow standard flues to be fitted. The Arada brochure lists 4in to 5in, 4in to 6in and 5in to 6in. Google ‘Stainless twin-wall flue’ and a number of likely hits will come up; Screwfix and Toolstation sell twin-wall flue parts. It is unlikely that you can get a pre-made length of twin-wall flue to fit your boat, so you might need to do some cutting to fit the spigots for the stove and chimney collars.
Twin-wall flue is not mandatory for boat use so, in the worst case, you could surround a length of single-wall flue with punched stainless sheet, fitted so it stands off the flue.