July 2016 Blog Posts (12)

Zonal Pressure Puzzle

I have a wonderful little (16 x 14 x 8) test cabin at Bristol Community College in Fall River, MA.  There are 3 'rooms', one of which stands in as the bathroom.  It has a bath fan in the ceiling and a small, hopper window.  When I depressurize the house to 50 Pascals, the pressure between the bathroom and the main body of the cabin is just 4.3 Pascals.  When I stand in the bathroom with the door closed, air is pouring in through the bathroom fan, there is enough flow to make the fan rotate…

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Added by Paul Raymer on July 28, 2016 at 5:05pm — 8 Comments

Play Game of Homes, by EnergyLogic, Inc.

I'd like to introduce everyone to Game of Homes, our cutting edge scenario based training tool targeted to Home Energy Professionals Nationally. It's free to play and it's a great way to acquire additional RESNET/BPI CEU’s.

 

Check it out and let me know what you think?  …

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Added by Sarah Holloway on July 28, 2016 at 3:29pm — No Comments

Innovations for Heating and Cooling

Heating and cooling of indoor spaces is one of the major operations of modern households and business premises. While traditional systems are still very much in use, technology has brought new and more efficient approaches.

All conventional systems need occasional maintenance. Tune-ups include the manual checking of functionality and fixing of worn out wiring and dysfunctional components. However, automatic sensors can now be employed to do the job, making your work a lot…

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Added by Dan McKee on July 28, 2016 at 5:00am — No Comments

Building with Rocks, Rocks. Check out the Drying Potential

Building with Rocks, Rocks! Check out the Drying Potential.

Check this out! This 24" x 48" x 2" thick piece of rigid stone wool insulation was left out overnight (on purpose) on the High Performance Tiny House project site, to see how it handles a deluge of rain, which we knew was coming. One of the many …

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Added by Chris Laumer-Giddens on July 26, 2016 at 6:30am — No Comments

Looking Back and Looking Forward: Home Energy Pros at 5 and 5000

Over the past five years, the Home Energy Pros social network has grown from a twinkle in our eyes to a vibrant community of 5000 doers and shakers in the home performance world. The membership represents a rich cross-section of participants in the home energy performance movement, including:

  • Energy auditors
  • Building contractors
  • Insulation contractors
  • HVAC contractors
  • Home inspectors
  • Appraisers
  • Real Estate…
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Added by Evan Mills on July 25, 2016 at 1:34pm — No Comments

Is the Perfect Wall Realistic?

Wrong question. The right question is what can we do to help builders design and construct more perfect walls without losing their shirts? At Building America, we have an idea for a tool to do this.

Since 1995, Building America Program experts have developed more than 100 innovations that…

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Added by Home Energy Magazine on July 18, 2016 at 5:35pm — No Comments

Boosting Insulation Can Reduce Energy Use, Pollution

Those of us working within the building industry or energy efficiency space in existing homes know that boosting insulation levels can reduce energy use, cut consumer costs and greenhouse gas emissions. Yet, there’s been a modest amount of data to quantify the extent of the benefits—particularly at the state level. Until now.

New …

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Added by Home Energy Magazine on July 18, 2016 at 5:32pm — No Comments

Keep Energy Consumption at Minimum Level through Mazda CX9 Interior

Mazda produces CX9 to fill the gap between crossover and SUV segment. Today, people pick crossover for their vehicle because it is lighter and has many benefits than full-size SUV. However, there are some SUV capabilities that can be obtained in crossover. For that reason, manufacturer combines benefits of both sides then put them into one car. In Mazda CX9 interior, several upgrades make this car digital and more effective to handle.

Mazda CX9 Interior and Engine

Before…

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Added by Deman PT on July 15, 2016 at 7:30am — No Comments

Time is Running Out to Register for EEBA Local in Phoenix!

Tomorrow is the last day to register at the Early Bird rate for the EEBA Local mini-conference event in Phoenix. This event will feature a full day "Water Efficiency for Designers & Builders" session with Gary Klein on July 28th, and a mini-conference July 29th focused on building science for hot, dry climates (I understand the weather will be cooperative).

Come for one day or both...lots of excellent information and in depth building science mysteries will be solved....earn CEUs…

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Added by Susan E. Buchan on July 14, 2016 at 12:56pm — 1 Comment

Low-Flow Shower Heads Save Water

Just about everyone enjoys a nice long hot shower. It does come with some cost for the water and don’t forget the associated cost to heat the water. The ideal situation is to apply the water only toward the person and avoid as much as waste as possible. Current federal standards require that shower heads deliver no more than 2.5 gpm (gallons per minute). Except for older homes that have not been renovated, most homes are already equipped with shower…

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Added by Helen Best on July 1, 2016 at 7:00pm — No Comments

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"Hi Chris, Today there is no research that I can find to support less than 500 fpm. As I noted above…"
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Robert Bean replied to Robert Bean's discussion Low velocity consequences in the group Kitchen Ventilation
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Tom Phillips replied to Robert Bean's discussion Low velocity consequences in the group Kitchen Ventilation
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Kitchen Ventilation

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Advancing Home Energy Labeling through Data Standardization

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Brad Cook replied to Bob Reuther's discussion log home roof insulation
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