KINGERSONS - Your Ayer Factory direct, wholesale prices on for gas furnace replacement company heat and air furnace repair, maintenance and installations. Manuals and submittals sheets on central ac system we sell at split air with heat pump (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 heat units