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About Us

When you choose to work with SLTNS Engineered Systems® over others, you can look forward to unparalleled and extraordinary service on all of your projects.

Expect More.

SLTNS Engineered Systems® is a professional manufacturers’ representative specializing in high-performance building technologies such as stairwell & elevator pressurization controllers, combustion & make-up air systems, clothes dryer exhaust systems, fully modulating multistory exhaust systems, special gas vents, chimneys, engine exhaust, mechanical draft systems, draft controls, and commercial kitchen exhaust.

SLTNS Engineered Systems® prides itself in exceeding your expectations. We value maintaining long-term relationships over pursuing short-term gains. To preserve our relationships, we always apply three principles to each project:


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Our engineers are active members of multiple codes and standards committees including ASHRAE’s TC6.10, NPFA 54, NFPA 211, and UL378. In addition, we have a thorough understanding of the IFGC, IMC, and NFPA 92.


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We believe in long-term customer relationships. In order to build loyalty and trust with our customers, we always provide you and your client with the proper solution even it does not fit within our product portfolio.


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Our engineers have over three decades of design experience so we don’t have to rely on computer programs or manufacturers to guide your design. Additionally, our estimators have full knowledge of our product line to ensure questions get answered correctly.

Meet Our Team

Our team consists of individuals with extensive experience, expertise, and energy for providing superior customer service and technical assistance.


 When you choose to work with us, you can expect unmatched and exceptional service on all of your projects.


Brian Ryglewicz



Antonella Lia

Director, Operations & Finance


John Kim

Senior Applications Engineer

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Craig Ballard

Marketing Manager


Linda Ryglewicz

Customer Service Manager


Nicole Melissant

Inside Sales


Jamie Lamb

Senior Estimator


Nick Meece



Kelli Hewitt



Krystal Apanah

Office Manager


Christine Brown

Customer Service Representative


Michael Ryglewicz

Senior Field Technician


Bob Lamb

Field Technician

Glass Buildings
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