Lennox 42W16 Extension kit 321142-301 If your heater shows a

If your heater shows a blank display

000-ohm slidewire controllers

ideal for controlling burners or alarm circuits

3-wire humidity controller designed for precision management of both humidifying and dehumidifying equipment

The HH style core contains activated charcoal to adsorb wax and organic acids that standard dessicant driers cannot trap

Lennox 42W16 Extension kit 321142-301 If your heater shows aFor field technicians and mechanical contractors, the Lennox 42W16 (LB 115012B) Vent Extension Kit is the industry standard solution for bringing rooftop installations into compliance with local building codes. Specifically engineered for Lennox LG, LD, KG 092 360, and SG 240 series units, this kit addresses critical clearance issues where exhaust outlets are situated too close to fresh air intakes. By elevating the termination point, it prevents flue