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HERS Ratings & Your San Diego Heating And Air System
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HERS Ratings & Your San Diego Heating And Air System

As you might recall, back in October 2005, the California Energy commission established new requirements for HVAC systems throughout the state. The requirements stated that ducts inside residences must be tested for leaks whenever a central air conditioner or furnace is installed or replaced.  Additionally, any ducts found to be leaking 15% or more were required to be repaired in order to reduce leaks.

However, these 2005 requirements allowed for several exemptions including:

  1. Homes in specific coastal climates.
  2. Systems having less than 40 feet of ductwork in unconditioned spaces like attics, garages, crawlspaces, basements or outside the building.
  3. Ducts constructed, insulated or sealed with asbestos.

As a result, numerous San Diego heating and air systems evaded the new requirements. But, as of  January, 2014, San Diego HVAC systems that previously avoided the changes to California’s HERS Ratings will no longer be exempt. This coming year, all residences, regardless of location, ductwork size and construction, will need to submit their systems to testing whenever their central air conditioner or furnace is installed or replaced.

This update to the rating is actually beneficial since ensuring your ductwork is not leaking in excess can reduce both your energy consumption and your electric bill. At Bill Howe, we have an expert team of San Diego HVAC technicians that can help test your homes’ ductwork. Additionally, our specialists can repair faulty and leaking ducts resulting in a much more efficient system and compliance with California’s new state law.

At Bill Howe Heating & Air, we have the knowledge, skill and expertise to make certain that your system is running at peak performance. And, no job is too large or too small for our heating and cooling technicians.

So, whether your ductwork is going to be in need of testing as a result of the upcoming HERS Rating update, or you simply want to ensure maximum heating and cooling efficiency, you can trust Bill Howe Heating & Air. We can have a highly skilled technician at your residence in no time.

For more information or to schedule an appointment  with one of our highly skilled San Diego heating and air technicians, give us a call at 1-800-Bill-Howe (1-800-245-5469).





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Bill Howe never fails us! We had a drain overflow, and Scott came (on a Saturday) to look at it and offer solution. He was punctual, professional, and extremely helpful. I should also praise the main office for always being helpful and always finding solutions. Very grateful to have you in San Diego!

February 2020

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Cory was our technician on this job. We had a time sensitive repair issue and Bill Howe understood and assisted with getting the job done quickly.
Cory was on time to start the job and finished it quickly. Upon his leaving our home he’s was courteous, very knowledgeable, explaining what the problem was and how he fixed it. Very good communication and this is the way it’s has always been when we use Bill Howe plumbing.
Great company to work with.
Thanks Cory.

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January 2019


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I am extremely happy with the service we received from Bill Howe Plumbing. We were given an incorrect diagnosis of our main sewer line from another vendor, but Bill Howe’s servicemen came out for a second opinion, correctly diagnosed our problem and resolved our back up issues. We will continue to use Bill Howe for all our future plumbing needs!

Thank you Bill Howe Plumbing.

July 2019