Description
Lennox 33M10 Heat Exchanger Assembly
The Lennox 33M10 Heat Exchanger Assembly is a genuine OEM replacement component designed to restore safe and efficient heating performance to compatible Lennox furnace systems. The heat exchanger is the critical barrier between combustion gases and the conditioned air circulating through your home or building — making this a vital part for maintaining both system efficiency and indoor air quality.
Key Features
- OEM Lennox replacement heat exchanger assembly (SKU: 33M10)
- Engineered to meet original equipment specifications for precise fit and function
- Serves as the critical thermal transfer component separating combustion gases from supply air
- Helps maintain system efficiency and prevents harmful combustion byproducts from entering the airstream
- Designed for direct replacement in compatible Lennox furnace models
- Durable construction built to withstand repeated thermal cycling
Why Replace Your Heat Exchanger?
A cracked or failed heat exchanger can allow carbon monoxide and other combustion gases to mix with conditioned air, posing a serious safety hazard. Replacing a damaged heat exchanger with a genuine Lennox OEM assembly restores system integrity, protects occupant safety, and ensures the furnace operates at peak efficiency.
Application
- Designed for use in compatible Lennox forced-air furnace systems
- Ideal for HVAC technicians performing furnace maintenance, inspection, or repair
- Recommended when heat exchanger cracks, corrosion, or failure are detected
Ordering Information
- Brand: Lennox
- Part Number / SKU: 33M10
- Part Type: Heat Exchanger Assembly
Verify compatibility with your specific Lennox furnace model before ordering. Contact Jackson Systems for assistance identifying the correct part for your application.









