KINGERSONS - Your Accokeek Flip through several deals on for local heating contractors heat and air furnace repair, maintenance and installations. Manuals and submittals sheets on central heat & air units we sell at split heating and air 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 heating and air