exhaust vent run for 95% furnace
I’m likely gonna replace my 80afue furnace with a new 95% furnace that vents out the wall using the PVC (I know different but cant remeber what it is right now) pipe. It will have fresh air intake from outside to and will be a sealed combustion type furnace, variable speed fan, etc.
Question is: How far can the exhaust and intake runs be? Where my furnace currently is if I go one way the run will be like 6 feet but would need atleast 4 elbows to make it around and through my floor joists and rim joist. Joists are the engineered i-bean type and I know your not supposed to punch big holes through them. I have a floor joist sitting about 4 inches from the rim joist (flange of the joist is only about 3 inches from foundation) on that side and don’t even know if I could get everthing through (under the floor joist between floor joist and top of foundation and then 90deg through the rim and out the brick)
If I go the other way it will run parallel to the joists and only need 1 elbow, but the run would be about 15feet.
Does the distance really matter or is there a limit?