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Stove Flue Requirements

I am planning tofit a Morso Squirrel or similar in my 57 foot new build narrowboat. As insulated flues look out of proportion to the size of the stove, can I use single skin to the roof and then insulated, thus gaining extra heat as well? If this is possible what clearance do I need to uninsulated surfaces. Many thanks. Michael Clement.

Asked by: Michael Clement  | 3.19pm, Thursday 12 January

WW says:

The simple answer is "yes" but it's not best practice. Some boatbuilders do this- though it's not strictly code-of-practice compliant, so in theory if something went wrong, insurance companies might have questions as to why a stove in a new boat didn't meet best practice- and the stove must meet the manufacturers installation guidelines. The following link is a very good place to start with information as it sums up the CoP: http://www.soliftec.com/Boat%20Stoves%201-page.pdf
The clearance to uninsulated surfaces is at least three times the diameter of the flue-preferably more. If you are considering using an uninsulated flue (and you won't gain much more additional heat- and bear in mind a 57ft narrowboat only needs around 2.2kW constantly of heat to remain warm in freezing conditions!) then definitely avoid having the the stove next to an exit door.

Mark Langley  | 11.23PM, Thursday 12 January

Readers say:

Thank you Mark. I will heed your advice!

Michael Clement  | 1.59PM, Friday 13 January

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