Duct Blaster

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Is Your Ventilation System Working?

There’s no way to know whether your fans are working properly unless someone has measured the airflow rates

Posted on Apr 15 2016 by Martin Holladay
prime

What’s a “faith-based ventilation system”? It’s a ventilation system installed by a contractor who never verifies the air flow rates after the equipment is installed.

So, will this type of ventilation system work? It’s hard to say — because no one measured anything.


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Image Credits:

  1. Image #1: Martin Holladay

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Self-Professed Air Flow Expert Gets Hosed

Bruce Manclark claims he was set up in his air flow testing workshop at the ACI conference

Posted on May 13 2013 by Carl Seville

Among the multitude of sessions at the ACI conference in Denver recently (a total of at least 180 sessions by my count), there was a very interesting half-day workshop on airflow testing hosted by Bruce Manclark and Paul Francisco. Their setup included simulated HVAC(Heating, ventilation, and air conditioning). Collectively, the mechanical systems that heat, ventilate, and cool a building. ducts of various shapes and sizes, and they used a Minneapolis Duct BlasterCalibrated air-flow measurement system developed to test the airtightness of forced-air duct systems. All outlets for the duct system, except for the one attached to the duct blaster, are sealed off and the system is either pressurized or depressurized; the work needed by the fan to maintain a given pressure difference provides a measure of duct leakage. to provide air flow to test various measurement tools.


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Image Credits:

  1. Jeffrey Sauls
  2. Allison Bailes

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New Videos: Sealing Ducts and Installing Dense-Packed Cellulose

GBA presents two new videos, both recorded at NESEA's Building Energy 13 conference in Boston

Posted on Apr 17 2013 by GBA Team

GBAGreenBuildingAdvisor.com has released two new videos: one on installing dense-packed cellulose in stud cavities, and the other on sealing duct seams with mastic.

Both videos were recorded in March 2013 at NESEANorth East Sustainable Energy Association. A regional membership organization promoting sustainable energy solutions. NESEA is committed to advancing three core elements: sustainable solutions, proven results and cutting-edge development in the field. States included in this region stretch from Maine to Maryland. www.nesea.org's Building Energy 13 conference in Boston.


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Image Credits:

  1. GBA video

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Why Don’t More HVAC Contractors Own Duct Leakage Testers?

With new energy code and green building program requirements on the horizon, we may be reaching a tipping point

Posted on Oct 22 2012 by Allison A. Bailes III, PhD

HVAC(Heating, ventilation, and air conditioning). Collectively, the mechanical systems that heat, ventilate, and cool a building. contractors own a lot of equipment. Of course, they have pressure gauges to test refrigerant charge in air conditioners and heat pumps, and many more pieces of technical equipment. One piece that few contractors own, however, is a duct leakage tester.

With more and more state energy codes requiring duct leakage tests, doesn't it seem obvious that HVAC contractors need to be like plumbers and test their own work before passing it off?


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Image Credits:

  1. Energy Vanguard

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Cool Tool for Duct Testing

This creaky old guy doesn’t have to climb as many ladders any more

Posted on May 23 2012 by Carl Seville

Some days I like my work, and some days I don’t, but I guess that’s just the way the world is. This love/hate relationship really rears its ugly head when I have to go out and do blower door and Duct BlasterCalibrated air-flow measurement system developed to test the airtightness of forced-air duct systems. All outlets for the duct system, except for the one attached to the duct blaster, are sealed off and the system is either pressurized or depressurized; the work needed by the fan to maintain a given pressure difference provides a measure of duct leakage. testing on homes. It’s not one of my favorite things to do, but if the weather’s nice and the drive’s not to far, it can end up being a good, and reasonably profitable, day.


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New Green Building Products — February 2012

Photovoltaic shingles, three new insulation products, high-performance windows and skylights, and HVAC register covers for duct tightness tests

Posted on Feb 3 2012 by Martin Holladay

My folder of interesting new building products is getting thick, so it’s time for another new product roundup. I’ll review three brands of photovoltaic(PV) Generation of electricity directly from sunlight. A photovoltaic cell has no moving parts; electrons are energized by sunlight and result in current flow. roofing designed to integrate with asphalt shingle roofs. I’ll also discuss several new types of insulation: a new type of rigid foam, batts made from plastic fibers, and batts made from hemp.


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Image Credits:

  1. Dow
  2. Martin Holladay
  3. CertainTeed
  4. Insulfoam
  5. Vita Nonwovens
  6. M.E.M.
  7. Wasco Skylights
  8. Wasco Windows
  9. Vent Cap Systems

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Utilities Offer Programs That Can Benefit Your Customers

Not only that — these utility-sponsored energy-efficiency programs can lower your energy bills, too

Posted on Oct 4 2011 by Michael Strong, LEED Associate, CGP

In Texas, as in many other states, local electric utilities offer homeowners a variety of free services to help lower energy bills.


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Image Credits:

  1. Fine Homebuilding

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ACI 2011 National Home Performance Conference Wrap-Up

Musings on mini-splits, performance testing and Mexican wrestling masks

Posted on Apr 5 2011 by Carl Seville

The ACI National Home Performance Conference was held in San Francisco, March 28-April 1, and I attended for the fourth consecutive year. It was my second year presenting. As this was the 25th anniversary of the event, I am still very much a newbie to this crowd, but now that I know many of the major players and have earned at least a little respect in the industry, I felt pretty comfortable. As always, ACI was a major geek fest with what appeared to be hundreds of different educational sessions running from 8 a.m.


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Image Credits:

  1. Allison Bailes

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The First Energy Star House: 'Surprisingly Easy'

A Custom Builder's Journey to Green — Part 2. The foundation of most green building programs, an Energy Star home is a great first step towards green home building.

Posted on Jul 27 2010 by Danny Kelly

Once our construction company was launched on a path toward green building, we knew we had to convince our customers of the advantages of building green. But we quickly found out that our customers weren’t interested in doing anything that added any cost to their homes; so we decided to build our first Energy StarLabeling system sponsored by the Environmental Protection Agency and the US Department of Energy for labeling the most energy-efficient products on the market; applies to a wide range of products, from computers and office equipment to refrigerators and air conditioners. house on speculation.


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Image Credits:

  1. Danny Kelly

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Duct Leakage Testing

For an energy-efficient forced-air system, seal seams with mastic and test with a Duct Blaster

Posted on Feb 19 2010 by Martin Holladay

For years, Americans who would never put up with leaky plumbing pipes have been willing to accept leaky ducts. While water damage is hard to ignore, the damage caused by leaky ducts is more subtle. Yet leaky ducts not only waste huge amounts of energy — they can also lead to comfort complaints, moisture problems, mold, and rot.


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Image Credits:

  1. Residential Energy Builders Guide, University of Kentucky
  2. Florida Solar Energy Center

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