About UltimateAir®

UltimateAir® is the most energy efficient whole-house Energy Recovery Ventilation ERV in the world. UltimateAir products allow buildings to be built more air tight and energy efficient.

We’re proud to manufacture products that improve Indoor Air Quality and help people lead healthier lives.  Located in beautiful Southeastern Ohio, In addition to giving our products the "Made in the USA" seal, we are also environmentally conscious and provide green jobs for employees who take pride in producing the industry’s best Energy Recovery Ventilator.

In 1989, Stirling Technology developed the patented rotary core heat exchangerbased on work with the Stirling engine, a technology invented in 1816. Our goal was to develop a whole-house ventilation system that requires little energy to operate. It was here that the RecoupAerator® was born. UltimateAir® is now the exclusive manufacturer for this patented technology in North America and Europe where the industry’s strictest ventilation codes are aggressively enforced.

Don’t take our word for it– UltimateAir® has received numerous industry and environmental awards including winner of the Top 10 Green Products and Dealer Design Silver Award winner.

Click here to learn more about what UltimateAir® can do for you.

Free Quote

 Learn how you can equip your home with a RecoupAerator® and start conserving energy! 


Get Started