Blower Door Test

Key Green Energy Solutions offers comprehensive Home Performance Assessments (home energy audits) to evaluate your home’s energy fitness.   Our assessment will tell you:

  •     *  How to improve the energy efficiency of your home
  •     *  Where to start – our clearly written report
  •          prioritizes your isses
  •     *  What local, state and federal incentive are
  •          available to you

 Information about our services and rates can be found under the tabs at the top of this page.  Because we are an independent assessment service, you are free to choose your own contractors based on the unique needs of your home.  This gives you increased flexibility and reduced costs.  We can refer you to the experienced companies in the greater Charlottesville/Albemarle VA area who are best suited to perform your improvements and we’ll be there for you every step of the way to answer questions.  To discuss how your home can benefit from a home performance assessment, call Laura Fiori, at 434-989-3514 or email Laura@KeyGreenEnergy.com.

Today I spoke on the WINA radio program called Real Estate Matters with Michael Guthrie.  We discussed how Home Energy Audits will provide a homeowner with detailed information about the energy efficiency of their home.   The purpose of the audit is to identify and prioritize which improvements to the home will create the biggest energy savings. 

A Charlottesville, VA nonprofit, the Local Energy Alliance Program (LEAP), is sponsoring the Home Performance with Energy Star program in our area.  By making home improvements that save at least 20% in energy costs, an existing home can be certified as a Home Performance with Energy Star Home (www.LEAP-VA.org).  This is a great way for sellers to differentiate their home from others on the market.

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Your bath fan is designed to remove moisture from your bathroom.  Run the fan while showering or bathing and until the mirror clears to remove about 75% of the moisture in the room.  Run the fan for 15 minutes after the mirror clears to remove 50% of the moisture in the room.  As we should try to keep the humidity in our homes at 50% or less, running the fan for 15 minutes after the mirror clears is a good idea.

Heated air is less dense than cold air, so houses tested in cold weather appear leakier than they really are (by about 1 percent for each 10 degrees F difference between indoor and outdoor temperature) unless an adjustment for temperature has been made.  Otherwise, testing will indicate the amount of less dense air flowing through the blower door, and not the amount of colder, denser air flowing through the holes.  From the Journal of Light Construction article:  Blower Door Testing by David Keefe, January 2010 issue.

Many historic buildings have energy saving physical features and devices that contribute to good thermal performance. Studies by the Energy Research and Development Administration show that the buildings with the poorest energy efficiency are actually those built between 1940 and 1975.
Read more about historic buildings here:  http://www.nps.gov/hps/tps/briefs/brief03.htm

 Charlottesville Gas has given natural gas users a valuable piece of energy efficiency information.  Analyzing their data according the method described below, Charlottesville Gas has determined that for homes that heat with natural gas  (more…)

Having your HAVC system serviced is similar to changing the oil in your car.  Regular maintenance will make the equipment last longer.  Have it serviced every 2 years for the first 6 years, and every year thereafter.  Change the furnace filter regularly as recommended on the filter package.

This is a must if you have any appliances/equipment fueled by natural gas, propane, wood or oil.  Proper placement of a carbon monoxide (CO) detector is important. If you are installing only one carbon monoxide detector, the Consumer Product Safety Commission (CPSC) recommends it be located near the sleeping area, where it can wake you if you are asleep.  Read manufacturers’ recommendations on placement.  For more information:  http://www.cpsc.gov/cpscpub/pubs/466.html.

It is always a good idea to insulate your hot water heater with an insulated blanket.  With ambient air temperature at approximately 70 degrees or below and water temperature in the tank at 120 degrees, insulation buffering these extremes makes sense.

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