KINGERSONS - Your Waltham Browse through cyber deals on for heating and air conditioning contractors ac and heat pump repair, installations and repairs. Manuals and submittals sheets on central heating and air conditioning units we sell at split air conditioner 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 condition units