It’s no secret that windows are a liability when it comes to heat loss in homes. Conductance of quality insulated, low-e windows is typically 0.30-0.35 Btu/ft2hr°F, or about R-3. If installed in a wall that performs at R-20, heat lost through windows is 6-7 times higher (per unit area) than heat loss through the rest of the wall.…Continue
Added by Jim Gunshinan on October 20, 2010 at 12:52pm — No Comments
There is a hot and heavy dialogue taking place in an online group that I belong to, made up mostly of people who are in the business of auditing homes and then making homes more energy efficient, healthy, and comfortable. The main gist of the discussion is, Do we rely on the government to encourage people to make their homes more efficient, or is it up to the market? Does this sound familiar? Tune into any election debate in the…Continue
Added by Jim Gunshinan on October 19, 2010 at 12:56pm — No Comments
Added by Jim Gunshinan on October 5, 2010 at 11:30am — No Comments
As we make homes tighter, we need to provide ventilation, which costs energy. One way to reduce the energy impact of that ventilation is to use an air-to-air heat recovery system. A heat recovery ventilator (HRV) recovers sensible heat by exchanging heat between incoming and outgoing airstreams. An energy recovery ventilator (ERV) is similar to an HRV but also allows moisture to be exchanged.…Continue
Added by Home Energy Magazine on September 1, 2010 at 11:00am — No Comments
Added by Home Energy Magazine on July 1, 2010 at 4:30pm — No Comments
Added by Home Energy Magazine on May 1, 2010 at 4:30pm — No Comments
Home Energy Monitors, that is, devices that display a home’s energy consumption have been touted as Silicon Valley’s contribution to the national energy conservation effort. A Home Energy Monitor (or HEM) constantly informs the occupants of their home’s electricity and gas consumption, along with conversions to monthly costs and comparisons with previous periods. Some models can (or will) communicate with heating and air conditioning systems. These devices will…Continue
Added by Home Energy Magazine on March 1, 2010 at 2:00pm — No Comments
Note: This post is cross-listed from the Energy Circle PRO blog.
Local Search guru David Mihm provides an extraordinary service to all of us by annually compiling the most important Local Search Ranking Factors as assessed by a group of leading consultants and thinkers in the local field. Since no one really knows what the search engine…Continue
The US has grown an energy conscience. Just look around in stores that sell appliances, computers, televisions, light bulbs or any kind of electric equipment. You’ll see the words ‘energy saving’ or ‘energy efficient’ on a lot of the packaging.
This trend didn’t just happen, but is the result of some careful nurturing by government, most of it relatively invisible to the average consumer and certainly painless and free of sacrifice.
Of these policies, one of the most ingenious…Continue
Added by Elisa Wood on June 17, 2011 at 8:44am — No Comments
Whew, as of yesterday (April 22nd) and taking the ENERGY STAR V3 test (long story short – the test was not available when I took the original class), that is it for the test taking (Since posting this, I had to take another 2 tests & classes for another program I am working with - will the madness ever stop?). As I was sitting there taking the test, I was amazed at how many people were flipping…Continue
At a job site meeting this past week, our newest design clients handed Abe a small pile of dog-eared, marked-up “inspiration” magazines. They contained pictures and ideas collected by the homeowners, and demonstrated their affection for clean lines, neutral colors, and a judicious use of space. …Continue
Who would have thought backyards would cause so much trouble for the North American energy industry? First came the NIMBYs, the not-in-my-backyard protesters who block power projects from being built near them. And now we have the GIMBBYs – the give-me-a-bigger-backyard homeowners who are unwittingly getting in the way of energy efficiency.
GIMBBYs aren’t worried about seeing wind turbines or transmission lines from their backyards as are the NIMBYs. It’s the guy next store that they…Continue
My company, Building Efficiency Resources (www.TheBER.com) is--among other things--a HERS providership. We see a tremendous opportunity now and into the future for Raters on the retrofit side, and we are devoting considerable effort to exploring and developing ways for our Raters to seize that opportunity. We bring to that task a clear understanding that not all Certified Raters are highly knowledgeable about existing homes, and that the farther back we…Continue
Added by Macie Melendez on April 26, 2011 at 12:56pm — No Comments
Added by Jim Gunshinan on April 1, 2011 at 2:15pm — No Comments
Added by Jim Gunshinan on March 31, 2011 at 12:30pm — No Comments
There is a lot of discussion and debate in the home performance industry about why home energy audits have only penetrated such a small portion of the U.S. housing market. We know that performance problems in existing homes are the rule rather than the exception. We know that most reasonable comprehensive home energy upgrades will result in a minimum 10-30% reduction in energy consumption and utility bills. We know that energy audits identify measures that can improve indoor air quality,…Continue