Then plug it in and you’re done (Photos 1 and 2). However, if your floor duct is smaller (like 2 x 10 in. or 2 x 12 in.) you’ll have to cut out a section of the floor and install a larger boot.

AVOID INSTALLATION ERRORS: Not performing a load calculation, poor placement of ductless indoor units, and assuming that existing ductwork will adequately accommodate a new system are among the ...

QDEAR BARRY: My home has a forced-air heating system, with ducts installed beneath the concrete slab floor. When it rains for several days in a row, the vents get wet, and some have standing water ...