Featured Blog Posts (519)

Scrutinizing Condensing Boilers With the Second Law of Thermodynamics (SLT)

“It’s amazing. Every year, we find somebody who comes up with a way of going around the second law (of Thermodynamics) and somehow convinces people who are very smart that it will work.”      MIT lecture on  Thermodynamics and & Kinetics, Spring 2008

 

 

Since the 1980s, hot water condensing boilers (CB) have…

Continue

Added by Igor Zhadanovsky on May 29, 2013 at 9:31am — 15 Comments

Momentum builds for energy efficiency...but is the wolf at the door?

It says something that Ernest Moniz chose to deliver his first public talk as US energy secretary to an energy efficiency crowd.

His appearance last week at EE Global in Washington, D.C. was a surprise of sorts. And the timing was significant. Moniz had only been confirmed as energy secretary three hours before taking the podium at the Alliance to Save Energy’s annual conference.

Why did he make the stop?

Probably not because of the size of the crowd. About 550 people…

Continue

Added by Elisa Wood on May 30, 2013 at 9:04am — 25 Comments

Change is Hard—How Do You Get People to Accept It?

Changing one’s daily routine and making big decisions about money is hard. When a home performance contractor asks a customer to consider an audit, they are asking a lot. Besides the cost of the audit and any retrofit measures the homeowner chooses to pay for, which is probably the biggest challenge, there is also the inconvenience. The audit and retrofit may require the homeowner to take time off from work. Having workers climb in and out of the attic, under the crawlspace, and drill holes…

Continue

Added by Jim Gunshinan on May 28, 2013 at 2:37pm — No Comments

Selling with Rebates: The Simple Payback

  The easiest way to show a homeowner how their investment in high-efficient equipment will help their wallet is to use the "Simple Payback" Calculation.  This 'tried and true' sales tactic will quickly explain how many years before the additional investment to upgrade is paid off.  Of course, there are many features that a high-efficient system provides, like superior levels of comfort, wether it be climate control or just condenser noise just outside their children's bedroom.  These…

Continue

Added by Christopher Morin on May 15, 2013 at 6:50pm — 16 Comments

Preparing to Update the Heat Pump

This is the latest from Foskey Road News, a business blog that is strictly consumer focused.

by Edward Foskey

Based on the life expectancy of the heat pump that came with my house when I bought it, I know that I am already living on borrowed time. I just recently had a minor repair and the semi-annual check-up. My plans are to start preparing to replace it by next spring.

I know…

Continue

Added by Edward Foskey on May 16, 2013 at 8:46am — 3 Comments

HOMES Act introduced with Bi-Partisan Sponsorship

We don't see a lot of bi-partisan bills in Congress these days. Here's one focusing on home energy-efficiency from a WV-R and a VT-D, both on the energy committee, the HOMES Act, HR 2128 (http://hdl.loc.gov/loc.uscongress/legislation.113hr2128) introduced yesterday.  Now, I'm not holding my breathe on passage, but I take it as a good sign that energy-efficiency is part of the…

Continue

Added by Mike Rogers on May 24, 2013 at 12:46pm — 3 Comments

The Universe Is Made of Stories

The late poet and political activist Muriel Rukeyser famously said, The Universe is made of stories, not of atoms. It’s not just words that make up stories. A scientific equation is a story, and so is getting up from my seat and stretching—it’s the story of back care for an editor. We can tell a story with the expression on our faces. What does it tell you when a loved one rolls her eyes at you, or blows you a kiss? How do you feel when a stranger winks at you? Flips you the bird? That last…

Continue

Added by Jim Gunshinan on May 17, 2013 at 11:30am — No Comments

Oodles of Acronyms & Initials for Home Energy Pros

Acronyms and initials (let's call that AI, for short, not to be confused with the other AI, which stands for artificial intelligence, or AIA, which stands for…

Continue

Added by Allison A. Bailes III on May 13, 2013 at 6:54am — 1 Comment

Robert Shiller Says Retrofits Are Never Worth It!

His economic truth about homeownership:

By contrast, real home prices should decline with time, except to the extent that households shell out some money and plow back some of their incomes into maintenance and improvements, because homes wear out and go out of style.

"Here is a harsh truth about homeownership: Over the long haul, it’s hard for homes to compete with the stock market in real…

Continue

Added by Tom DelConte on May 3, 2013 at 5:00am — 9 Comments

Behavior and Usability: At the Interface of Human-Building Interaction

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



Of course, behaviorism works. So does torture. Give me…

Continue

Added by Lester Shen on April 25, 2013 at 6:00am — 1 Comment

Good Drainage Planes stop Capillary Action

We use drainage gaps or planes in wall systems to stop water from entering the building shell and causing deterioration or mould. This air gap does two things if wide enough; it prevents water’s surface tension from staying or even climbing up the wall and the gap also disperses the forces of wind driven rain or solar vapour drive. Let’s look at…

Continue

Added by Greg Labbe on April 22, 2013 at 11:00am — No Comments

The Future of Home Performance is Wrapped in Cheese—Q&A with Dave Robinson

Dave Robinson, a principal of GreenEarthEquities, is a man in this industry that needs little introduction. If you didn’t see him at last year’s ACI event accepting the Tony Woods Award, you may have seen him teaching a class, serving as the former president of the California Building Performance Association, or performing deep energy retrofits on…

Continue

Added by Macie Melendez on April 19, 2013 at 1:29pm — 4 Comments

Solar Energy + Energy Efficiency – time to sing the Duet?

Energy Efficiency + Solar Energy work in conjunction allowing you to SAVE ENERGY

Solar Energy + Energy Efficiency Services – to DO or NOT to DO – is no more a Shakespearean dilemma!

The SMB solar installer finds himself in a challenging spot today

  • Profitability hurts, some operators are working on a…
Continue

Added by Bijou Lulla on April 12, 2013 at 12:12am — 3 Comments

What is the Consumer Attitude towards Energy Efficiency Products & Services

Much has been written in recent times on consumer attitudes towards investing in energy efficiency retrofits, a recent GTM article http://www.greentechmedia.com/articles/read/Can-Home-Energy-Efficiency-Gain-Traction?utm_source=SmartGrid&utm_medium=Headline&utm_campaign=GTMDaily does hit the nail on the…

Continue

Added by Bijou Lulla on April 13, 2013 at 12:25am — 3 Comments

0.72 ach50 Before Drywall - This Home is already 90% Tighter than Energy Code

Before drywall was installed, I tested the infiltration (air leakage) at the Proud Green Home (PGH) at Serenbe,…

Continue

Added by Chris Laumer-Giddens on April 15, 2013 at 7:30am — 1 Comment

The Energy Challenge'D: Crowdsourcing for Energy Efficiency

Shriver-E_HR_.jpg CEE understands that efficient technologies alone will not save energy. Consumer behavior plays a role in energy consumption, so our program design incorporates use strategies from behavioral psychology. We also like to use social media and other communication channels to educate about energy! In this post, Minnesota Energy Challenge Coordinator …

Continue

Added by Anna Jursik on April 15, 2013 at 7:35am — No Comments

CO in Attached Garages

On two separate Quality Assurance site visits in the past two weeks I've detected elevated levels of Carbon Monoxide (CO) coming from attached garages. I was a bit surprised at this since neither garage contained a car - let alone any active source of combustion. So I did some digging and came up with this great resource from Iowa State on the topic. From my reading of…

Continue

Added by Nick Helmholdt on April 15, 2013 at 12:14pm — 2 Comments

Learning Thermostat - a huge impact on Energy Savings

Ok, I have had a couple programmable thermostats in the past... But, once again about 11 months ago I was doing my weekly (sometimes daily) stroll through the neighborhood 'big-box' home improvement store and back in the back past the garden section there is this little…

Continue

Added by Dale Stephens on March 28, 2013 at 6:30am — 32 Comments

Why do we have Sizing Limits?

There are not as many contractors out there as you would expect that are current with the most recent, and always updating, residential building code.  Particularly when it comes to the sizing limitations for HVAC equipment, most contractors consider this minimum requirement by law nothing more than a nuisance.  There is nothing more frustrating to see in a quality control role than a system that was sold, sized, and installed prior to the start of the system design process.  Completing a…

Continue

Added by Christopher Morin on March 31, 2013 at 11:07am — 10 Comments

Do No Harm

Before BPI Certification, this problem probably would not have been noticed or understood. The home occupants were a 96 year old woman and her elderly & disabled son.…

Continue

Added by Guy DuBois on March 13, 2013 at 2:10pm — 2 Comments

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Kris Grube added a discussion to the group Job Board
Thumbnail

Good Energy Retrofit, Portland, Or. Hiring Home Performance Salesperson.

Good Energy Retrofit is a small and focused, woman owned and operated, specialty residential…See More
1 hour ago
Benjamin Gromicko posted events
2 hours ago
Nate Adams joined Diane Chojnowski's group
Thumbnail

Hall of Shame

In this group, members share an array of images from the field, showing the kinds of issues…See More
3 hours ago
tedkidd commented on Diane Chojnowski's group Hall of Shame
"Give this thread a bump - here's my "bad" album and some of the…"
3 hours ago
Eric Kjelshus commented on Adam Swain's blog post Top Worst Crawl Space Insulation Ideas
"6) Radiant barrier- under the gravel is just a barrier but with holes each square inch its not a…"
3 hours ago
tedkidd replied to Luis Hernandez's discussion Distribution Efficiency and heating safety factor in TREAT in the group TREAT Software
"It is very common to find equipment grossly oversized. I mean 1.5 - 2x Manual J and 2-3x the size…"
3 hours ago
tedkidd replied to Luis Hernandez's discussion Basic Heat loss information in the group TREAT Software
"Luis,  Click "selected reports, energy savings and use, design heating and cooling…"
4 hours ago
Ed Minch replied to Kurt Shafer's discussion Where can I find the best radiant barrier to install under my roof?
"The important thing here is the surface temperature of the ceiling against the attic as compared to…"
4 hours ago

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service