Posts Tagged ‘EPA’

Taking Home Performance National

June 1, 2009
David Lee of the U.S. EPA, speaks at a DOE Summit on Residential Energy-Efficiency. Seated on the panel were also Mike Rogers of GreenHomes America, Gil Sperling, U.S. DOE, and John Byrne, Delaware Sustainable Energy Utility

David Lee of the U.S. EPA, speaks at a DOE Summit on Residential Energy-Efficiency. Seated on the panel were also Mike Rogers of GreenHomes America, Gil Sperling, U.S. DOE, and John Byrne, Delaware Sustainable Energy Utility

I had the honor of presenting at and participating in discussions at a U.S. Department of Energy summit last week that was exploring how to bring exactly the sort of whole-house approach the GreenHomes America uses to homeowners all around the country. 
It was great talking with thought-leaders and experts from DOE, the EPA, reserach, utilities, and the private sector about how to make this happen. 
While GreenHomes is expanding to new locations, I’m glad that people will be working to bring more contractors into the fold nationally to help grow this faster and help fix more homes the right way.

Thanks,
Mike

 

Is It Time to Replace That Air-Conditioner?

August 4, 2008

With the high temperatures (and soggy humidity in the Northeast), here’s a question we’ve gotten a lot likely.  How do you know when it’s time to replace your air-conditioner?  There are several warning signs.  First, any air-conditioner that is more the 10 years old is a candidate for replacement. Energy efficiencies have improved dramatically, and top contractors like GreenHomes can install this new equipment so that you can get the most out of it.  Age of the equipment alone, though, isn’t the only sign that you may be ready. ENERGY STAR offers some guidelines for homeowners that make a lot of sense.  It’s time to call for help if any of the following apply.

  • Your equipment needs frequent repairs and your energy bills are going up. There are a variety of problems that can creep in over time to make your cooling equipment less efficient.  Although some can be repaired, occasionally replacement can be more cost effective.
  • Some rooms in your home are too hot or too cold.  Improper equipment operation, duct problems or inadequate insulation could be the cause.
  • No one is home for long periods of the day and you do not have a programmable thermostat.  Install an ENERGY STAR qualified programmable thermostat or have a good contractor install one and instruct you on its use — to start saving energy and money while they’re away or sleeping.
  • Your home has humidity problems.  Poor equipment operation, inadequate or oversized equipment, and leaky ductwork can cause the air to be too dry in the winter or too humid in the summer. 
  • Your home has excessive dust.  Leaky ducts can pull particles and air from attics, crawl spaces and basements and distribute them throughout your house. Sealing your ducts may be a solution.
  • Your heating or cooling system is noisy.  You could have an undersized duct system or a problem with the indoor coil of your cooling equipment.  
  • Your score on the U.S. EPA’s Home Energy Yardstick is low.  The Yardstick helps you determine how your energy use compares to others in homes like yours.

If any of these apply to you should have your system evaluated.  Make sure though, that you get a comprehensive assessment of your home first.  Many problems that appear to be with your heating and cooling equipment are actually caused by poor insulation, air leaks, windows, or other issues.  Unfortunately, these problems can be found even in newly constructed homes, and regardless of when it was built your home should get a thorough evaluation.

Much of the above applies to your furnace as well.  New “ECM” furnace motors are much more efficient than standard models and can lead to huge savings your electric bill.  Because inefficient motors actually generate waste heat, equipment with these new motors saves you twice with your air conditioning!  But I’ll talk more about furnaces later.

-Mike 


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