Originally Posted by Jolly Roger bus 223
your IOM installation operation and maitenance manual will give you the venting configurations and types of piping material that is aloud.
if not followed and a problem arises then the insurance company can and will deny you and if the heater has a performance issue and you didnt vent in accordance with the IOM then any warranty can be denied.
look into concentric vent kits that take care of the intake and exhaust.
i install alot of high capacity boilers and water heaters that allow anything from standard PVC pipe,sch 80 pvc, standard B vent pipe.
let me know if you want help finding the right material.
HI Jolly Roger
Those concentric vents are cool.
However, they still directly violate the liability tenets you posted concern over.
About 2 minutes on Google turned up more reasons not to use them than to do so. Mostly that they seem to suck in the exhaust (whodathunkit), issues with condensation, they seem to be intended for use with a blower, not just relying on draft,
I don't understand how they do not catch fire/droop/stink etc with the heat that is involved.
Somebody figured a 12v plastic blower at floor level would melt... if these survive, why wouldn't that?
I probably will just go with the manufacturer prescribed wall mounted goofy pipe, and make it removable for travel. As much as that idea does not really appeal to me.
I am very open to any other suggestions or why the concentric really is a great idea?
What sort of vent caps are they using on these food trucks? They are always on the move and certainly aren't all using traditional rv parts.