Vent for Olympian type heaters

[geezernbabe]

We have a Olympian heater in our 23' that was put in by th PO. It works fine and we are going to put one in the 31' we are doing for the frame up. But after reading about the need to vent I was trying to figure out what to do with the old holes in the side of the trailer where I took out the old heater and at the same time I was looking at the old ducting that went to the bath that we moved from the rear to the middle of the trailer. So I cut and pop riveted a new duct to fit over the holes and go to the bottom of the side wall where I am going to mount the heater. I will put a small closeable vent under the heater that will supply outside air to the bottom side of the heater. Plus I got rid of some old parts. I will take a shot at some pics it's been a while.

[Fyrzowt]

Looks like that will work!
I opened a window, but this way you'll never forget.

[Dieselgrin]

The PO removed the furnace from my trailer and I am think of doing something similar. any suggestions on flexible venting from the same existing holes? I don't know if the square inches meet the Olympian recommendations.