BLIMP said:
NATE379 said:
No enforced building codes. Would imagine if sparks would could out of that vent it would set the grass outside on fire??
http://www.woodheat.org/outdoorair/outdoorairmyth.htm
That is why (even though it's recommend that you don't do it) I recommend terminating an OAK into a well ventilated attic space if possible. Yes, if you get a reverse draft (very, very unlikely if it's terminated into an attic space and you have a proper chimney) you're going to get a lot of smoke in there, but it's in the attic and not in the home. Terminating in the attic space (well ventilated) negates the effects of negative/positive pressures because any pressure on one side is relieved by venting on the other side.
I know that they all have ups and downs; but this is what worked best for me. If I was to run my OAK outside like "they" say, one side of the house would yield a big positive pressure and challenging routing + possibly blockage by drifting snow; the other side would have been a negative pressure + extremely challenging routing plus bad location to have the OAK vent. My attic is ventilated pretty well, so I decided that routing my OAK into the attic would be the best option for negative/positive pressures, and if a reverse draft were to happen, it would simply vent into the attic and not be a problem.