KINGERSONS - Your Nabesna Browse through special sale on for hvac service tech heat and air furnace repair, maintenance and installations. Manuals and submittals sheets on central heating and cooling we sell at split air and heating units (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 unit