Articles Tagged with ''ductwork''

ductfan

Continental Fan Mfg. Inc.: Duct Fan

June 11, 2018
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These fans are suitable for residential, commercial, and light industrial ventilation applications. The quiet and efficient backward–curved motorized impeller is capable of developing significant pressure, and the in-line configuration simplifies installation, saving time and money.
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Study Addresses Interior Ductwork Contribution to Home Energy Loss

Comfort Institute
March 5, 2018
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Comfort Institute released finding from a new study that indicates leaks in ductwork located in conditioned space can have a significant impact on energy savings. The study, conducted by Comfort Institute in combination with the Greater Cincinnati Energy Alliance (GCEA), showed that the amount of conditioned air seeping through the building envelope and escaping to the outside of the home was reduced by an average of 11.4 percent after the ducts were effectively sealed.
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Manufacturer Reports ACHR NEWS

Cornell Tech Passive House Turns To Duct Sealing Innovation

February 19, 2018
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Completed in 2017, The House at Cornell Tech is the world’s largest building to meet Passive House criteria, the strictest international standards for building performance and energy efficiency. At the heart of the building’s unique Passive House design is an HVAC system designed to provide  exceptional comfort and indoor air quality for a fraction of the residents’ usual energy costs.
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direction of airflow

Duct Dynasty: A Closer Look at Combustion Air

Verifying installations is the key to combustion air performance
David Richardson
David Richardson
July 31, 2017
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To understand the operation of combustion air openings, it’s a good idea to review some airflow basics. For airflow to move through a duct, there must be a pressure difference across it created by an external source. Traditional installations depend on natural forces to create this pressure difference.
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duct takeoffs

The Scoop on Branch Duct Takeoffs

How to overcome the most common problems
David Richardson
David Richardson
April 24, 2017
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A few months ago, I wrote a Duct Dynasty article on the ideal duct system. The most frequent comments and questions I received about this article were regarding branch takeoffs. So, I thought it would be fun to take a deeper look at branch duct takeoffs and how to overcome some of the most common problems associated with them.
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