Well I appreciate the comment on hiring an HVAC engineer (and I did consult one of how they deal with "large" hood fans - hence my intention to install a MUA system) I was hoping to get some feedback on basic calcs. In the meantime I believe I've managed to find the relevant ones and complete a...
Hello. I am attempting to get a building permit for a a home renovation (my own home). The HVAC system is not being touched but I do intend to install a new outside-venting 600 CFM max fan over a gas rangetop. I rec'd a deficiency letter from the permit office because of concern over house...