Zachary Ortwine Archives

Zachary Ortwine

Company name: Southeast Clean Air Solutions

Position: Owner

Zachary Ortwine is the owner of Southeast Clean Air Solutions and has 7+ years of full-time, field-based duct cleaning experience. He holds the following certifications:

National Air Duct Cleaners Association (NADCA): Certified Ventilation Inspector (CVI) and Air Systems Cleaning Specialist (ASCS)

National Comfort Institute (NCI): Duct System Optimization, Residential HVAC System Performance, Residential Air Balancing Certified

He is also a 3x previous speaker for NADCA Fall Technical Conference, a NADCA Scientific Committee member, and serves as part of the ASCS and CVI Exam Writing task forces.

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Gas Law Concepts for HVAC/R

If you went to school and learned the “gas laws” early on, you probably thought it seemed LAME. Then, later, things like mass flow rates, airflow conversions, and compression ratios seemed HARD. Well… It's because HVAC is hard if you don't understand the concepts behind the gas laws, even if you never learn to do […]

Why Measuring Static First Isn’t Always Productive

There is a big move in residential and light commercial HVAC toward measuring static pressure regularly during commissioning, service, and maintenance. Don't get me wrong… Measuring static pressure is VERY important. The challenge comes in when techs begin taking measurements without understanding where to take them or what they mean. Or worse, they use measurements […]

Pre-Cleaning Copper

Sometimes, we can focus on the more complicated aspects of a system and parts installation—like evacuation and flowing nitrogen—and forget the simple and critical common-sense steps to keep contaminants out of the system. One of these is pre-cleaning the tubing and connection before cutting or unsweating. For example, if you are replacing a coil, use […]

Ethical Duct Cleaning

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Duct Cleaning Training with Zach Ortwine

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Can You Coat Fiberglass?

In this episode of the HVAC School Podcast, Bryan interviews Zach about duct coatings and their applications in HVAC systems, particularly focusing on the Hardcast RE500 product. The discussion delves into the importance of proper duct coating applications and their benefits for both contractors and customers. Zach, who has extensive experience in duct cleaning […]

Duct Cleaning – How Long & How Often?

In this episode of the HVAC School podcast, Bryan interviews Zach from Southeast Clean Air Solutions about the intricacies of professional duct cleaning. Zach specializes in addressing duct cleaning challenges specific to the Southeastern climate, with a particular focus on fiberglass-lined ducts. The conversation delves into the complexities of cleaning different types of duct […]

Can Ducts Be Cleaned Ethically?

In this episode of the HVAC School Podcast, Bryan interviews Zachary Ortwine, a duct cleaning professional who provides insights into ethical duct cleaning practices. The conversation delves deep into the complexities of cleaning different types of ductwork, the importance of proper assessment, and the potential challenges in maintaining indoor air quality. Zach emphasizes the […]