Aristotle Air

How It Works

Aristotle Air

Heat Exchange Technology

It’s a fact, fresh air helps you think more clearly, and studies continue to report healthier outcomes for individuals in building and classroom environments where fresh air is accessible. But with that fresh air comes the challenge of heating and cleaning it.

Aristotle Air uses Heat Exchange Technology to take advantage of the already- heated, ‘stale’ indoor air to warm fresh outdoor air. (Yet the two air sources never mix together, flowing next to each other in opposite directions.) The ‘new’ air is then disinfected by ultraviolet light – removing 90% of airborne pathogens – and released into the classroom. The result is an energy-efficient, constant flow of fresh, purified air.



Here’s how it works:

  1. Fresh air enters the Aristotle Air unit from the outdoors
  2. Warm, stale classroom air enters the heat exchanger
  3. The stale air warms the incoming fresh air
  4. UV light sterilizes the air, removing bacteria
  5. The now-warm fresh air passes through heater coils, heating it to a precisetemperature
  6. Warm, clean air is circulated throughout the classroom



In a typical classroom system, a traditional unit must heat the outdoor air by 100% to reach a comfortable room temperature of 70°. With Aristotle Air, much of the heat needed to bring outdoor air to 70° is transferred from the indoor stale air, meaning only 40% heating is required.

Because Aristotle Air maintains a constant, even room temperature, the school’s system pump can run at a slower speed—further reducing the energy used to heat the room. With it being self balancing, we can remove rooftop exhauster, thereby increasing electrical savings even more.

Grand Traverse Area Catholic Schools

Mike Buell, Superintendent

“We converted two different wings of an old school to a new heating system. We replaced one large 4,000,000 BTU boiler with two 500,000 BTU high-efficiency units. This changeover took place during the heating season, after school hours, with no inconvenience whatsoever to our teachers or students. Because the heat recovery system was so efficient in utilizing the indoor temperature to sustain our comfort level, we were able to put off firing up the boilers for a full month. This, along with the energy efficiency of the units, saved us over 43% on our gas bills!”

Case Study