Traditional heating and air systems take days or weeks to install depending on the weather, the contractor, and other factors. A mini-split system takes far less time to install. In some cases, depending on the number of units your space requires, installation can be accomplished in a day. Not to mention, the units only require a three-inch hole for conduit instead of reworking walls, floors, or ceilings for ductwork. https://www.minisplitwarehouse.com/category/diy-mini-split-heat-pump-ac