Description
Lennox 14C19 Aluminum Heat Exchanger — 240,000 BTU
The Lennox 14C19 is a factory-authorized OEM aluminum heat exchanger engineered for high-capacity commercial and residential heating applications. Rated at 240,000 BTU, this replacement heat exchanger is designed to restore your Lennox heating system to peak operating efficiency while maintaining the safety and performance standards of the original equipment.
Key Features
- OEM Lennox replacement heat exchanger for precise fit and compatibility
- Aluminum construction for excellent thermal conductivity and corrosion resistance
- High-capacity 240,000 BTU rating suited for demanding heating loads
- Engineered to meet original equipment specifications for reliable, long-term performance
- Direct drop-in replacement minimizes installation time and labor
Why Choose an OEM Heat Exchanger?
Using a genuine Lennox OEM heat exchanger ensures your system operates within its designed safety parameters. Aftermarket substitutes may not meet the precise tolerances required for efficient combustion and heat transfer. The 14C19 is built to Lennox’s exacting standards, giving technicians and building owners confidence in both safety and system longevity.
Applications
- Replacement for failed or cracked heat exchangers in Lennox furnace systems
- High-output commercial and large residential heating units requiring 240,000 BTU capacity
- Preventive maintenance and system restoration projects
Ordering Information
- Brand: Lennox
- Part Number / SKU: 14C19
- Material: Aluminum
- BTU Capacity: 240,000 BTU







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