Aerosport sells an air handler that routes outside air into the cockpit through an overhead console. I purchased and fiberglassed in an overhead console into the fuselage. I installed air vents in the console. Then I purchased the air handler from Aerosport. This air handler via a small servo will shunt outside air into the overhead console. It was necessary to install duct holes through the aft fuselage bulkhead so that flexible hose from the air handler would shunt into the cabin. Wiring runs up to the panel to open and close the air handler. I cut openings in the side of the empennage immediately aft of the baggage compartment bulkhead and installed air ducts on either side of the fuselage. They are fiberglased in place.