Quote:
Originally Posted by Jolly Roger bus 223
the shorter the length and the least amount of turns for fuel fired flue pipe is key.
code for a fuel fired appliance flue pipe only says 2 feet above average snow load for your area.
and most manufacturers instructions allow longer runs and extra elbows if you increase the size of the flue pipe.
as far as the flashing or roof boot DEKTITE make a rubber silicone roof boot that are made for hot pipe penetrations.
i call them hot boots but they are the red ones on there website.
i havent looked at your specific equipment but i build and work on fuel oil natural gas and propane fired boilers for a living.
i have ran schedule 80 pvc off of fuel oil fired boilers and CPVC but the temperature limit switch is the key.
dont waste your time
double wall b-vent stainless steel with the termination cap.
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Thank you! Your post raise more questions, which is always a good thing.
1. Can you give me a quick technical explanation of why shorter is better with fuel?
2. Have you seen the DEKTITE on buses? Is that still what you'd recommend?
3. PVC and CPVC? I'm assuming you are talking about the water connections. Which would you recommend as the best?
4. Dickinson says double wall will increase draft, but recommends single-wall to release more heat into the cabin. What is reason you suggest suggest anything other than double wall b-vent to be a waste? In my research I was unable to find 4" SS oval -> double wall b-vent adapter, or even a barometric dampener (which Dickinson recommends). Do you have any suggestions on solutions? This will be my first chimney (?flue?, idk...)
Thank you,