KINGERSONS - Your Allison Explore our deals on for air conditioning subcontractors heat and air furnace repair, maintenance and installations. Manuals and submittals sheets on central cooling and heating systems we sell at split heat & air units (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 system