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Replacing Your HVAC System?

2012 January 30

By Abigail Daken

Several of my coworkers have asked me for tips when they are thinking of replacing their HVAC (heating, cooling and air conditioning) system. Each situation is different, and it can be challenge to think about the best and least costly ways of saving energy. Still, there are some tips that I find apply in almost every instance:

  1. Find a good contractor. Keep in mind that the lowest bidder or a poor installation job could cost you money over time. Look for recommendations from sources of consumer advice in your area.  EPA’s ENERGY STAR has some good tips for hiring a contractor.
  2. Use EPA’s handy checklist to compare bids from several contractors.
  3. Once you pick a contractor, ask them how you can lower your energy bills. Your contractor should evaluate your home to determine your needs and diagnose any current efficiency or comfort problems. Make sure they check to see if you can get a smaller system than your old one since many existing systems are too large for the homes they are in.
  4. Whatever type of system you get, consider ENERGY STAR equipment—in most climates these systems will save you money in the long run even if it might cost more up front. The type of system that is right for your home will depend on a lot of factors. If you have a tall, skinny space like a townhouse, or rooms that are rarely used, consider zoning. If you have electric resistance heat, a heat pump will almost certainly save you money.
  5. Set up a service contract after your new equipment is installed. A new HVAC system is an expensive investment, like a car, and about a third of your annual energy bills depend on how well it’s working.  Like a car, it needs maintenance to stay efficient.
  6. While you are at it…..A major system replacement is a good time to check that your walls and ceiling are well sealed and insulated, and your ducts aren’t leaking into your attic or garage. Many utilities and state energy offices even have programs to help you do so. The Home Performance with ENERGY STAR website has lots of great tips, too.

About the author: Abigail Daken has worked at the EPA since 2008.  She manages setting requirements for ENERGY STAR heating and cooling products, as well as water heaters and dehumidifiers. In her off time, she enjoys reading and spending time with her family.

Editor’s Note: The opinions expressed in Greenversations are those of the author. They do not reflect EPA policy, endorsement, or action, and EPA does not verify the accuracy or science of the contents of the blog.

Editor's Note: The opinions expressed in Greenversations are those of the author. They do not reflect EPA policy, endorsement, or action, and EPA does not verify the accuracy or science of the contents of the blog.

2 Responses leave one →
  1. kevin pierce permalink
    February 5, 2012

    do an energy audit with a blower door test first. Air leakage alone accounts for most inefficiencies. Block those “bypasses” will ot only save energy but make you home much less susceptible to fire, which follows the same bypass paths as it snake through the house

  2. Mirko permalink
    April 2, 2014

    I am thinking about changing the complete HVAC system at my house since the energy consumption is really on high level. But it is too costly to change it all, and I was talking with the company providing this service in my area they said all the best about energy star. I think I will take credit to finish this as it promises a lot and with all the savings it will be good investment.

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