I have a Burnham series 2 boiler in my house. I just bought the house and no nothing about gas boilers but I am learning. I recently added a wood boiler to my hydronic system that i spiped thru my propane boiler. My propane boiler is not turned on at this time. I installed the wood burner into the chimney that was used for the propane boiler and it is working OK meets code and all that. My question is for the propane boiler chimney. My thoughts were to just run the pipe out the side of the room and put a downturned cap for venting the boiler. After reading up on this boiler i have discovered that these boilers basically need the same type of chimney requirements as my wood boiler.. Why is this? The boiler has a damper and draft hood. I didnt think these propane boilers go tthat hot and a good pipe is all that is needed. Now I am reading that i need a 15 ft chimeny similar to my wood boiler for this. Any thoughts or recommendations? I would like to get the propane boiler operational for times when im away from home (no wood loader)