Addition and/or Alterations - EZ PERMIT DUCTWORK & WARM-AIR APPLIANCES- For the installation if New Ductwork, Registers/Grilles/Diffusers, and Warm-Air Appliances as per attached standards. Deviations from these standards require submission of construction and site plans.(Note: rooftop installations will require plans unless it has already been included on any approved alteration plans. Adding a 70,000 BTU, Air and heat unit 2 1/2 ton. One appliance connected to the duct work, NO NEW DUCTWORK IS PART OF THIS PERMIT, APPLIANCE REPLACEMENT LIKE IN KIND ONLY.