KINGERSONS - Your Osburn Read details and browse to buy for air conditioning subcontractors required heat and air furnace repair, maintenance and installations. Manuals and submittals sheets on central heat and air systems we sell at split ac unit (ductless type) delivered straight to your doorstep. Typical delivery time from distribution warehouse is 1-5 business days depending upon products ordered, quantity and location of the shipping address. window air heat pump