L.J. Wing Since 1875 L. J. Wing has been leader in providing innovative solutions for difficult HVAC problems. They have four different product lines: Door Protection (DH Door Heaters and WAC Air Curtains), Coils (Integral Face & Bypass Coils, IFB, VIFB and MV coils), Make-Up Air (FAS Fresh Air Supply, WDF Direct-Fired Gas Heaters, Energy Recovery) and Unit Heaters (HU, HCF, HCR Units, GA Gas Assemblies, HMS, HMG High Mounting Series and HLC High Level Circulators).
