The Three Key Components to Replacing Your Heating and Cooling System

28 11 2012

If you are looking to replace your heating and cooling system, then there are three major factors that you need to keep in mind.  These factors will not only guarantee your comfort, they will also improve the longevity and efficiency of your new system.  These factors are the actual system itself, the systems fit on the home, and the quality of the installation.

The system itself is pretty straight forward.  All equipment has an efficiency rating making the efficiency of the equipment easy to compare.  Just make sure to stick to the facts.  Efficiency ratings should be backed by an AHRI certificate verifying the rating.  However, efficiency isn’t the same as quality.  Here again stick to the facts.  A true heating and cooling professional should be able to share with you how a system works and what engineering aspects of that system make it a better system.  Again, if they can’t tell you what makes it a better system then chances are it isn’t.

The systems fit to the home is one of the more complex and more difficult to understand factors.  In order for a contractor to know what fits the home, they must first understand the heating and cooling requirements of your home.  This is done with a manual-j load calculation.  This load calculation involves entering the exact information about your home into a computer program.  The contractor will need to know the size and type of windows on your home and which way the windows face in relationship to the sun.  They will need to know the insulation values in your walls, ceilings and floors.  They will need to know how many people live in your home and what heat-producing appliances are in your home.  They will also need to know the size and type of doors that are on the home.  Basically, they need to measure and look at just about every aspect of your home.  Then factoring in where you live, the computer program will tell them exactly how much heat your home requires on the coldest days of winter and how much cooling your home requires on the hottest days of summer.  This information will help the contractor choose the appropriate size and type of system for your home.  Matching the new system as close to possible to the heating and cooling requirements for your home ensures the system cycles correctly thus providing maximum efficiency and comfort.  Any contractor who does not do this calculation should be dismissed accordingly!

The last important factor is the quality of the installation.  The number one energy robbing problem with heating and cooling systems is lack of proper installation.  Even the best system can be rendered useless if not installed correctly.   Choosing the proper company to install the system is critical.  This will take a little research on your part.  First of all, any heating and air conditioning contractor should be able to provide references.  And I am not talking about 2 or 3, I am talking about 100.  Anyone can come up with 3 people who like them.  In addition, that company should have a clean Better Business Bureau rating.  They should have NATE certified technicians (NATE certification is highest and toughest to obtain certification in the heating and cooling industry).  All heating and air conditioning contractors are required to have their work inspected when installing a new system.  But, just because they are getting their work inspected doesn’t mean it is done right.  Typically the inspection department isn’t looking for design issues or properly configured equipment, they are only looking for safety hazards.  So, getting a job inspected doesn’t guarantee is done right.

Your heating and cooling system is the hardest working appliance in your home and it accounts for nearly 70% of all your energy costs.  Take the time to make the right decision.  Learn about the equipment and choose the better equipment.  Make sure you understand what your home needs and how the proposed system meets those needs.  Lastly, make sure to use a contractor who has the experience and expertise to install the system correctly.  Take the time to do these things and you can’t go wrong!

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