A friend and myself are doing a full gut-rehab on an 1890 greystone in the city of Chicago. This is a 5500 square-foot home. We are putting two forced air heating systems into the house. We do not want any extremely large returns in the house. We would prefer a bunch (perhaps equal to the # of supplies) of returns vs. a few very large returns. Our HVAC contractor basically told us that a few centrally located large returns = a better system than the system that we are propossing. This is basically new construction, everything is currently ripped out.
Any thoughts on this would be much appreciated. E.g does it basically come done to cost (a bunch of returns = more $ than a few centrally loacted returns)? Also, which system would be better (for the most part) a bunch of smaller returns all over the house OR a few (large) centrally located returns?