Lennox 99W41 Aluminum Furnace Heat Exchanger 150K

The Lennox 99W41 is a complete heat exchanger replacement kit designed for LG, KG, TG, and ZG series packaged rooftop HVAC units. This OEM replacement component features aluminized construction with a seven-tube design that efficiently transfers heat from combustion gases to circulated air, supporting heating capacities up to 150,000 BTU/hr.

Key Features:

• Aluminized seven-tube heat exchanger assembly with excellent thermal conductivity and corrosion resistance
• 150,000 BTU capacity ideal for commercial and large residential heating systems
• Complete replacement kit includes heat exchanger assembly, CAB gasket, six mastic seals, 22 screws, five wire ties, and 17-inch foam PVC tape
• Direct drop-in replacement ensuring proper fit and maintaining original system efficiency ratings
• Replaces obsolete part numbers 15W86, 99W4101, 610414-01, and LB-112079A

This genuine Lennox replacement part (Model/Part Number 610414-01) restores your unit's original performance while maintaining published efficiency ratings, certifications, and sound level requirements. Professional installation by a qualified HVAC technician with properly calibrated combustion test equipment is required for safe operation.