KINGERSONS - Your Westfall Factory direct, wholesale prices on for hvac service technician heat and air furnace repair, maintenance and installations. Manuals and submittals sheets on central air heat pump we sell at split air heating cooling (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 units