Balanced Ventilation Basics for Homes

Nick Agopian, Vice President of Sales and Marketing at RenewAire, and Paul Raymer, Chief Investogator from Heyoka Indoor Solutions LLC, joined Host Tyler Kern for the second of three series episodes on improving indoor air quality.

Agopian explained why balanced ventilation with outdoor air is so important. When one cubic foot of air moves out of a building, one cubic foot moves back in. This new air can can take on internally generated contaminants from the building, but as the air moves back out, Mother Nature can help purify the contaminants. “Ventilation, in concert with Mother Nature, helps us to remediate some of the problems we have indoors,” Agopian said. Filtering can also be beneficial for reducing contaminants, but it can filter both good and bad pathogens. However, Agopian does believe filtration has its time and place. “Ventilation with filtration can be a good thing in order to achieve the highest level of good indoor air quality or great indoor air quality resolving the issue that we talked about earlier which is sick building syndrome,” he stated.

Agopian and Raymer explained how crucial balanced ventilation is for indoor air quality (IAQ). The solution to pollution is dilution achieved via increased and balanced ventilation. With enough controlled fresh and filtered outdoor air coming in to replace equal parts of stale indoor air via balanced design, the indoor air quality will be enhanced. “All the leaks and cracks in the house are neutralized, and that is one of the most important parts of balance ventilation, Raymer explained.” He added that you really need to know what you’re doing and make sure equipment works how it is designed to work, which is part of the reason Paul wrote the second version of the Residential Ventilation Guidebook as a reference.

How is balance ventilation achieved? “Each room has its own particular needs and requirements based on what you’re using it for and how you’re using it,” said Agopian. He added, “Demand-based control is paramount, without a doubt.” A balanced ventilation system exhausts contaminants from the whole house. Generally, exhaust-only ventilation units, like bath fans and or oven hoods, only expel contaminants from a localized single source. Additionally, balanced ventilation provides filtered supply air whereas exhaust-only units bring in uncontrolled outdoor air that has seeped through cracks and openings. Uncontrolled air is not filtered air. Controlled supply air is preferable as contaminants are filtered out. “Balance is not just the wholistic look of one system, but balance is each individual room accordingly,” Agopian stated.

Moving forward, it may be beneficial to examine ventilation from a load-based lens for each room. For example, the ACA Manual J looks at heat load from each room by classifying rooms into Category A (supply) rooms and Category B (exhaust) rooms, which could conceptually carry over to ventilation.

Clearly, increased ventilation is an essential asset to any house. But what about the monster under the bed, the cost? Stay tuned and join for Episode Three of the series to find out more. 

Subscribe to the IAQ IQ: Indoor Air Quality and You podcast on Apple Podcasts and Spotify for the latest insights and news about the air quality in your home and office.

Follow us on social media for the latest updates in B2B!

Latest

Grocery Store Prepared Meals
Consumers Want More Grocery Store Prepared Meals. How Should Grocers Adapt?
December 6, 2022

The consumer dollar has spoken: the best thing since sliced bread is sliced turkey. A new FMI report, the FMI Power of Foodservice at Retail, seems to show that deli-prepared food purchases are up 9.3% compared to 2019 numbers and up 2.4% year-over-year in unit sales. It’s clear that consumer appetite for grocery store prepared […]

Read More
Robotics in Early Learning Can Be Essential in How Students React to STEM Literacy
December 6, 2022

Early learning robotics can be essential in how students react to STEM literacy and with large gaps In STEM achievement persisting across the U.S., access to technological resources can make a significant impact. K-12 education was disrupted by the COVID-19 pandemic, but the disruption could be mitigated by introducing the latest and innovative technology into […]

Read More
The European Space Agency Lunar Launch Programs and Service Initiatives to Watch in 2023
December 6, 2022

The European Space Agency is making strides in its efforts to commercialize space, with a focus on sustained exploration. What are they doing to achieve this? According to the ESA, it all starts with service initiatives. A recent panel discussion at the Space Tech Expo in Bremen, Germany revealed that the ESA is growing its […]

Read More