KINGERSONS - Your Plumwood Browse through cyber deals on for largest hvac companies heat and air furnace repair, maintenance and installations. Manuals and submittals sheets on central air conditioning systems we sell at split air & heat 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 heat and air units