Propane vent question
I've got a 5 window short bus and have very few options as to where I could put a propane tank. My plan is to build a propane locker for a 20lb tank mounted inside with a hole in the bottom to vent to the outside. I've found a few examples online of people doing this, but they all used PVC straight down for the vent. In my case, I'd have to go down at an angle and bend around other things before I could get to the outside.
So my questions are:
1) Is there a significant difference in venting underneath the bus vs. venting to the side of the bus (but below the tank)?
2) Do I have to use PVC, or could I use flexible tubing of sufficient diameter (I'd read minimum ID was 3/4")?