help needed with a flue

[23pioneer]

im putting a multi fueled stove in an out building and its going up through a slate roof, the question is do i need to but an angle in the flue or can i run it straight up from the top of the stove straight up through the roof. Cheers

[Chainsawman]

You might get water leaks without flashing. Myself I'd keep as much pipe inside (angle it) to give off heat. You need a 'top hat' on it as well; rain water corrodes well in the acidic conditions inside the fire (they all have mild steel fittings).
Seen somewhere a pipe wrapped around the flue to heat water..

[Chainsawman]

went off half cocked there - I'd put it through the wall, even if it's 2ft thick consisting of stones and soil, it'll be easier than making it watertight through the slates.

[Jack the Lad]

im putting a multi fueled stove in an out building and its going up through a slate roof, the question is do i need to but an angle in the flue or can i run it straight up from the top of the stove straight up through the roof. Cheers

you can run it straight up and fit a rubber flashing.


The flue can get very hot, ensure the area were the flue goes through the roof structure is well fire proofed.

JTL