RMH Exhaust Pipe

Hello,

I am having a 2000sqft shop constructed on our farm in Hamilton, MT. I will be installing a RMH to heat the space, but this will occur later this summer. The shop is currently being framed with roof to be installed next week. I want to have the GC install the necessary exhaust pipe at this time, so I can simply tie in when I install later this year. Can someone identify exhaust pipe diameter recommended, as well as any particular specs for the pipe for long term performance.

Thanks,

The size of the exhaust pipe should be relative to the size of the rest of your RMH. In your case have the contractor install 8" duct through the floor and design an 8" system.

Forgot to address longevity. I like stainless for the exhaust. Can be expensive but if the RMH is permanent it might be worth the investment.