KINGERSONS - Your Princeton Factory direct, wholesale prices on for need hvac technicians heat and air furnace repair, maintenance and installations. Manuals and submittals sheets on central ac and heat units we sell at split air and heat 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 air & heat units