Have a basement that is being finished, 1500sq feet, 2 BR, 1 large rec room and bathroom. walkout basement.
I'm getting conflicting # of ducts and returns from HVAC contractors.
1. Is there a downside if have too many ducts? Some say would only put in 5 as if you put too many your putting holes in your ducts and going to make it really cold in the winter upstairs (also uncomfortable in summer, etc). the other camp is telling me no, put in 8 b/c want to make it warm enough to be livable in the winter.
2. Returns? some say 1 is only that is needed, some say one for each room (3) and some say 2?
3. 2 rooms upstairs (long takeoffs) are a lot colder in winter/hotter in summer and are off the same trunk that a bathroom is (that has a shorter takeoff). One group of people are saying they'd do boosters, another is saying "balancing' (but don't know what that mean), and a third is saying they'd put in a "scoop" to move air shunted to the bathroom to the 2 bedrooms.
They all are saying they are using duct calculators, heat load calcs, etc, so I don't know who to trust?!?