Awl --
Recently, in asking about pipe diam/length and pressure drops for natural gas, I was surprised at how significantly delivered gas volume drops with length. For example, for 3/4" pipe, the cfh drops from about 350 to 250 to
200 for run lengths of 10, 20, and 30 feet. I"m wondering if this is even correct.... fromIf this is indeed correct, I could assume the same is true of exhaust back pressure with pipe length. The flange on the muffler is 1.5" OD (proly 1
3/8 id), and I want to put a 25 ft flexible exhaust extension on it, like inand the Q is, what id tubing would be practical to use? The tubing is given by id, so 1.5" should hose clamp to my 1.5" flange. But, I can go larger, if back pressure will be an issue, and just machine a bushing. The motor is a 22 hp Honda GX690, twin cylinder, with a single muffler.
Opinions on the "right diameter" for this run? Should I use a high temp gasket material along with a hose clamp? I'll be monitoring CO.