Originally Posted by kevin07
vynl siding. Would double wall be cool enough to have the siding tuching it? or would i need a thimble? Also would 2 90s and all single wall cause a draft issue?
Would still need a thimble. The pipe would need to be a flue pipe rated for solid fuel. And it would still have a min clearance needed from the siding. Single wall clearances are much greater then All fuel requirements.
EG: On gas, B vent requires 1" all the way around it, single wall pipe requires 6" all the way around it.