Steven Hergott


Seven Hergott was born and raised in New York City and a descendent of German immigrants. He attended the prestigious Bronx High School of Science and then earned a bachelor’s degree in civil engineering from CCNY and, later, a master’s of science degree in environmental engineering from Cornell University. He now lives in Dover, New Hampshire, and he loves to hike in the White Mountains of New Hampshire and canoe in northern Maine. He has two wonderful adult children, who are following in his footsteps, and a wife, who teaches wellness and fitness and motivates him to stay energetic and in good shape.

Steve has worked in the heating, ventilation, and air-conditioning (HVAC) industry since 1980 as a sales professional, consultant, trainer, sales manager, and business owner. He knows how to size up and engineer heating and air-conditioning systems of all types, including radiant floor heating and geothermal systems.

He always has had a keen interest in indoor air quality, and in 2005 he met Doug Hoffman from NORMI (National Organization of Remediators and Mold Inspectors) and proceeded to become trained and certified as an indoor environmental assessor. He has earned many NORMI certifications, including the certified advanced IAQ Assessor (CAIA). Steve is also a member of the Indoor Air Quality Association (IAQA) and the Maine Indoor Air Quality Council.

Steve is best known for his attention to details and offering a variety of solutions that he says is due to his “problem” of being both an engineer and of German heritage—“I just have to get all the details right before I leave a home,” he’ll always say. He truly cares about all his clients and is passionate about recommending HVAC solutions for indoor air-quality problems.

Steve started his first HVAC contracting business with no employees and just with the idea that he could pull it off on his own. He doubled the size of that business when he noticed a sign for a new condo project on the way home from church one Sunday and made a phone call to the developer. He exhibited similar courage by learning about indoor air-quality concerns and started his assessment business, which has now grown into Inspired Indoor Air LLC.

Now all that experience and expertise is summarized in Healthy Harmless Home for you to use in making your own home more comfortable and healthy.


The homes we live in can be a source of great comfort and joy, but they can also be challenging in terms of our overall health and well-being. A hundred years ago, our homes tended to be healthier places to live in because, for the most part, they were drafty and built with lumber and materials that did not outgas as much as they do today. Our homes today, however, tend to be very energy efficient, tightly constructed, and well insulated, with very low infiltration rates of outdoor air, and they are often unhealthy to live in—unless they have certain HVAC accessories and indoor air-quality improvement products.

This book will list and describe early-warning danger signs of an unhealthy home. Each chapter will focus on a particular indoor pollutant or house characteristic that might lead to home-induced illnesses. A recurring theme will be how to diagnose the problems and what solutions are available. A good diagnosis is critical and may be best done by a certified indoor air-quality assessor or indoor environmental professional. Many of the recommended solutions will be HVAC related (heating, ventilation, and air-conditioning) and best installed by a qualified HVAC contractor.


• How to have your home tested for possible indoor air pollutants.
• What are the healthy and harmful levels of common indoor pollutants.
• Why high relative humidity levels are so bad indoors and how to control it.
• How the new indoor air quality monitors can control ventilation systems.
• Why indoor air pressures are so important and how to change them.
• Why mold spores are measured so frequently and how they can be an indicator of other indoor air concerns.
• What HVAC indoor air-quality products are best to install in your home.
• Why many homes are so dusty indoors and particle counters are all about.
• Why radon and carbon monoxide are so troublesome and potentially deadly.


• Why are homes less healthy now, and what can be done about it.
• What are some early-warning signs for a possible unhealthy home.
• Is mold as bad as the Internet says it can be, and can it be dangerous to your health.
• Why are water events inside your home so important to properly take care of.
• Why should you rely on your nose as a diagnostic tool for possible indoor air problems.
• What can be living in the dust in your home.
• Why are radon and carbon monoxide potentially silent killers.
• What are some new technologies for cleaning up indoor air problems.
• What are some wonderful HVAC solutions for indoor air pollution.
• What comprises the helpful checklist for a Hergott-designed healthy, harmless home.
• What are the author-recommended products and services.