Retrofitting with slim ducts

I’m looking at retrofitting my house with slim ducted unitsI currently have a 3.5-ton central ducted with the air handler in the conditioned attic. (3.5 ton cycles most of the… I’m looking at retrofitting my house with slim ducted unitsI currently have a 3.5-ton central ducted with the air handler in the conditioned attic. (3.5 ton cycles most of the…Read MoreGreenBuildingAdvisor