KINGERSONS - Your Casco Browse online pages for buying for central air conditioner companies heat and air furnace repair, maintenance and installations. Manuals and submittals sheets on central air conditioning system we sell at split heating and air conditioning 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 and heating units