If you have already replaced your filter and your system makes excessive noise.
Lennox furnace air flow direction.
The most common terms used to describe the air flow configuration are.
Lennox gas and oil furnaces are engineered to deliver perfect warmth efficiency and energy savings.
The term air flow configuration describes the physical orientation of a furnace relative to the direction in which heated air leaves the furnace and enters the ductwork.
If you have any questions about where your filter goes or how to install a new one your local lennox dealer can help.
Lennox provides the best in home heating and systems with top of the line hvac systems furnaces air conditioners and many other home heating air products.
A furnace filter has one side that allows it to breath fresh air through while the other side traps dust and particles from the air.
Get help from your lennox dealer.
These arrows point to the direction of the airflow which should be toward your furnace or air handler.