WH FT SS HP install11 Longley Supply is a full-line wholesale distributor of heating and air conditioning equipment and supplies representing over 70 name brand manufacturers and inventorying over 800 HVAC product SKUs. Among our major brands are Luxaire, Mitsubishi,  Honeywell,  Gastite, Therma-Stor, Sante-Fe, Nu-Calgon, and EWC. We have long been a key supplier and resource for heating and air conditioning contractors, mechanical contractors, engineers, architects and other trade professionals. From furnace filters, tape, registers, flex duct, thermostats, controls, and motorized dampers – to mini-split systems, and residential and commercial heating and air conditioning equipment – Longley Supply is a one-stop resource for the HVAC products and technical expertise required by the trade professional.