I have a heil a/c unit. It is a 4 ton unit .Trying to figure out how to run duct the best way. I live in a trailer home 16 x 60 with a add on that is 16 x 21and im adding another 16 x 21 . How many vents should i have in each room ?
bed rooms are 16 x 12 two of them. Bath room is 8 x 6 ...
