This is Eddie in Tampa. I would like to know if anyone knows why all these mobile and manufactured homes run nothing larger then 14" FLEX . 3 - 4 TON UNITS AND THEY ARE RUNNING OFF 12 OR 14 FLEX. Then I try to order 16 and 18 mobile home flex from Baker and they can't even get it- like it doesn't even exist. What gives, is there some other realm of ductsizing I never heard of.
Like what actually happens when you run these package units at a .2 or higher static. Ever looked under a trailer? sure it's short, but come on. It's bad enough they get away with selling them with a 50 foot run of 6x12 floor duct and 4x8 grills. How they do I do not understand either.
Anyway, anyone got any answers?