Featured Blog Posts (747)

With record high heat/humidity come xtreme door sticking.

Living in Missouri, the combination of record high temperatures and extreme humidity are really becoming evident with all our house doors sticking. Doors we've never seen stick before. This record weather is also pointing out some deficiencies in our HVAC with condensation. (If you see water dripping, check duct work…

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Added by Don Fitchett on July 27, 2015 at 12:30pm — 1 Comment

What needs to be done to get builders to follow Code for duct and envelope leakage?

“If your new home was not built properly to Code, you might pay $50,000 over the life of your home in extra energy bills. You may have health and structural problems caused by hidden hidden problems and improper inspections by Code officials.  At no cost to you, let us have your home checked to see if you are one of 1000s in Texas (name your State) where Codes are ignored.”

In Australia, homeowners are starting class actions against their builders for the same type of poor workmanship…

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Added by Colin Genge on July 29, 2015 at 7:30pm — 11 Comments

HVAC Industry: Who wins with High Warranties?

During the sales process, it is inevitable warranty periods will be raised.  I remember raving about how the latest and greatest HVAC product led the industry with the longest warranty period.  Very often this only lasted a short period of time as other Manufacturer’s would continue to match warranties with their line.  Things often got out of hand as warranties have reached ‘limited lifetime’ on parts like compressors or heat…

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Added by Christopher Morin on August 3, 2015 at 1:26pm — 4 Comments

Taming the Energy Use of Gaming Computers

New report on the surprising energy appetite of gaming PCs -- More info and link to the full report here.

While not part of the building envelope or primary systems that home energy pros usually engage with, it's important to know about this increasingly…

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Added by Evan Mills on July 21, 2015 at 5:38pm — 2 Comments

The Real Women of Home Performance

At the ACI National Conference this year, I was remiss that there was no official presence of Women in Home Performance. What I found encouraging was that people noticed and asked for more. So, with the gracious assistance of long time supporter Macie Melendez of Home Energy magazine, we’re back! Macie and I will be interviewing women in the industry in a blog series, The Real Women of…
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Added by Home Energy Magazine on July 14, 2015 at 4:57pm — 6 Comments

A CHEAT SHEET FOR ENERGY MODELLING OLD HOMES

Sustainable Energi Solutions

The biggest errors occur in modeling estimates of…

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Added by Bijou Lulla on July 8, 2015 at 4:18am — 5 Comments

DOE's Building Science Education efforts - a request

In recent years, DOE has developed the DOE Guidelines for Building Science Education - a set of job-specific checklists intended to be used by partnering training organizations, universities and certification bodies to self–certify that their programs include these important aspects of…

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Added by Stacy Hunt on July 6, 2015 at 1:31pm — 1 Comment

Building America Webinar: Put New Tools and Content on the Building America Solution Center To Work for You! July 22, 3pm ET/1pm MT/12pm PT

The Building America Program is hosting a no-cost, webinar-based training on the Building America Solution Center. The Building America Solution Center is known for its easy-to-follow, illustrated, step-by-step guides for installing the measures that make up high-performance homes.  A number of updates have been implemented that offer exciting new tools and content that builders and industry professionals can put to work immediately.  Tune in to this webinar to hear about the latest Solution…

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Added by Stacy Hunt on July 6, 2015 at 1:27pm — No Comments

ENERGY EFFICIENCY RETROFITS.....IN NUMBERS WE TRUST

There has been much ado about the recent paper published by E2e; Do Energy Efficiency Investments Deliver? Evidence from the Weatherization Assistance Program, the final word on which is yet to be written.

Decades of experience and verification prove energy efficiency programs deliver huge benefits to consumers and the environment - and these benefits far exceed the costs. But numbers can be distorted and therein is the bane of Energy efficiency projects.

E2e has some heavy…

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Added by Bijou Lulla on July 5, 2015 at 8:05pm — 2 Comments

More Ways in Which You Can Use Your Laser Measuring Tool

laser measure devices are quickly replacing the traditional metal tapes due to their effectiveness and accuracy. While the simplest use of this kind of artifacts is measuring the distance between two points, there is a wide variety of extra applications you can find for your laser measurer.

Below you’ll find a large list of additional applications for your laser measurer.

Large storage facilities equipped with…

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Added by Lars olsen on July 3, 2015 at 11:00am — No Comments

Embodied Energy: Minimizing Waste with Off-Site Construction

Matthew Wadlund is adding infill housing stock to the Oceanview neighborhood of Berkeley, California, where he is replacing a single-family house with four single-family, three-story detached houses. The wall panels in Matthew's Oceanview Orchard homes are constructed off-site and craned into place, resulting in maximum material efficiency and near-zero waste. Tom White, Home Energy's publisher, spoke with Matthew about his decision to prefabricate wall panels…

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Added by Tom White on June 23, 2015 at 5:01pm — 1 Comment

Water Conservation

By now you are probably aware of California’s drought. But other states are experiencing droughts—and where there aren’t droughts, there are probably floods. Water and energy consumption are becoming more and more closely connected, and the situation is not likely to improve. Here are some of the ways our clients experience these connections in their homes.…

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Added by Home Energy Magazine on June 29, 2015 at 2:06pm — No Comments

Revisiting Heat Pump Water Heaters

Most of the recent trade press seems focused on tankless water heaters.  Whether used in whole-home or point-of-use configurations, tankless water heaters solve some of the efficiency problems associated with storage tank heaters.  While these systems are worthy of discussion,…

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Added by Charlie Hewitt on June 10, 2015 at 11:30am — 1 Comment

Participate in a study on Healthy, Efficient new homes

Healthy Efficient New California Homes – Pilot Study
Study participants wanted. Receive up to $560.

Lawrence Berkeley National Laboratory seeks volunteers who will make their home available for a three-week research study. The pilot study will occur in July…

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Added by Wanyu Rengie Chan on June 4, 2015 at 7:30pm — No Comments

Energy bills up? There may be humans in your building

Reposted from i.e., the Center for Energy and Environment's Innovation Exchange blog -- http://mncee.org/Innovation-Exchange/ie/

As you read this blog post, what room are you in? How’s the lighting? How’s the temperature? Do you control their levels — or is someone else, somewhere else, running the show? 



About 40% of energy use in the U.S. is consumed in…

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Added by Lester Shen on June 3, 2015 at 10:04am — 6 Comments

Book Review—Green Building Illustrated

For those not familiar with “Ching books”, they’re essentially the gold standard for visual architecture reference and aid in the design process. Architect Francis D.K. Ching’s series of textbook-size volumes go through conceptual to intimate detail of design and construction for both novice and professionals alike. They’re commonly noted as the best and easiest-to-understand references for design…

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Added by Home Energy Magazine on June 23, 2015 at 1:58pm — No Comments

Storytelling Our Way to a Better Life



The poet Muriel Rukeyser once said something like this: The Universe is not made of atoms; it’s made of stories. I think that conferences are made of stories too, like the one I’m at this week, the National Energy and Utility…

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Added by Jim Gunshinan on June 23, 2015 at 5:00pm — 1 Comment

Unexpected Blessing

When I received an email from Larry Zarker of BPI, informing me that I had been inducted into the BPI Building Performance Hall of Fame, I thought it must be a big mistake. Then I looked at the list of previous inductees and was sure it was a mistake! I haven’t even done a blower door test all by…

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Added by Jim Gunshinan on May 27, 2015 at 4:30pm — 6 Comments

Survey - Healthy Efficient New California Homes Study

Lawrence Berkeley National Laboratory is conducting a research study on new homes in California. We invite you to participate in this survey if you live in a: 

  • House or townhouse or duplex,
  • AND if your home was built in 2002 or…
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Added by Wanyu Rengie Chan on May 28, 2015 at 7:00pm — No Comments

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Forum Discussions

Too many Heat Pump Water Heaters in a basement?

Started by Brad Cook in General Forum. Last reply by Michael Duclos 4 hours ago. 10 Replies

How would you insulate this roof?

Started by David Butler in General Forum. Last reply by David Butler yesterday. 2 Replies

Dirty solar panels

Started by Evan Mills in General Forum. Last reply by Stacie Bagnasco on Monday. 1 Reply

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