Lennox 12W96 - Lennox LB-65635H, Downflow Combustible Flooring Base Kit

 

Lennox 12W96 – Lennox LB-65635H Downflow Combustible Flooring Base Kit is a factory-approved accessory designed to ensure safe and code-compliant installation of downflow gas furnaces on combustible flooring surfaces. This base kit creates a protective barrier between the furnace and the floor, helping meet local building codes and manufacturer installation requirements.

Engineered specifically for compatibility with select Lennox downflow furnace models, the LB-65635H combustible flooring base kit provides a secure mounting foundation while maintaining proper airflow and structural stability. It is commonly required for residential installations where furnaces are installed directly over wood or other combustible materials.

The kit is constructed from durable, high-quality materials designed to withstand long-term exposure to heat and operating conditions typical of gas furnaces. Using a genuine Lennox combustible floor base helps preserve system integrity, supports safe operation, and avoids installation issues associated with non-OEM alternatives.

This downflow combustible flooring base is ideal for HVAC contractors, installers, and service technicians performing new installations or replacements where code compliance and manufacturer specifications are critical. Using an OEM Lennox base kit helps ensure proper fitment, faster installation, and long-term reliability.

 

Key features include compatibility with Lennox downflow furnaces, code-compliant protection for combustible floors, OEM construction for precise fit and performance, and suitability for residential heating applications. This component is an essential installation accessory for maintaining safety standards and protecting flooring materials in downflow furnace setups.