Lennox Cold End Header Box Kit for Series Furnaces

The Lennox Cold End Header Box Kit (also called a cold end collector box or collector box kit) is a genuine Lennox replacement part for the condensing gas furnace's secondary heat exchanger. The cold end header box collects flue gases and condensate at the cold end of the heat exchanger. It routes them to the drain and vent system.

Key Features:

• Genuine Lennox OEM replacement for the cold end header (collector) box assembly in select Lennox condensing furnace series
• Collects condensate and directs it to the drain trap, so the furnace drains properly
• Supplied as a kit with the associated hardware used to reconnect the condensate drain, as documented for each part number
• Made to the original equipment specifications, so it matches the part it replaces
• Lightweight assembly that is straightforward for a qualified HVAC technician to install

Use this kit to restore proper condensate drainage and venting on a furnace with a cracked, leaking, or corroded collector box. It is offered in several part-number variants, each matched to a specific Lennox furnace series. Choose the variant that matches your furnace series.