Description
Lennox 33M70 Draft Inducer Assembly Overview
The Lennox 33M70 Draft Inducer Assembly is a precision-engineered OEM replacement component designed to maintain proper combustion airflow and flue gas venting in compatible Lennox furnace systems. Operating at 208-230V, this assembly ensures consistent negative pressure within the heat exchanger, supporting safe and efficient furnace operation throughout the heating season.
Key Features
- OEM Lennox replacement draft inducer assembly
- Rated voltage: 208-230V
- Designed to maintain proper combustion airflow and flue gas evacuation
- Supports safe, efficient furnace operation by creating the necessary draft through the heat exchanger
- Direct replacement for compatible Lennox furnace models — minimizes installation time
- Built to OEM specifications for reliable, long-lasting performance
Application
The 33M70 draft inducer assembly is intended for use in Lennox forced-air gas furnaces that require a powered venting solution. The inducer motor draws combustion gases through the heat exchanger and expels them safely through the flue, which is critical for both efficiency and safety. Always verify compatibility with your specific Lennox furnace model before installation.
Why Choose the Lennox 33M70?
- Genuine Lennox OEM part ensures proper fit and function
- Restores furnace draft performance to factory specifications
- Helps prevent nuisance pressure switch lockouts caused by inadequate draft
- Reduces risk of combustion gas spillage into the living space
- Ideal for HVAC technicians performing furnace repairs and maintenance







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