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7900 Excelsior Blvd. #750 • Hopkins, MN 55343
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Purchasing a New Heating System

Things to Look for When Purchasing a New Heating System

The first thing you need to know before you begin the search for a new heating system is whether you are currently using the best fuel source available. For example, if you currently use propane gas, you may look to switch to natural gas if it has become available in your area. There are pros and cons to every fuel, and a switch could add hundreds of dollars to the cost of a new heating system, but be well worth it in the long run.

It usually pays to check with your heating contractor who can help you get a feel for what you will save in your energy costs over the next five to ten years with the fuel source you choose. By doing this, your contractor can show you what your long term savings will be vs. your short term investment. You may also be eligible for rebates and/or special financing options with approved credit.

If a contractor simply looks at your old system and quotes you a price on a system of the same size, be skeptical.

One size does not fit all. No matter which type of heating system you decide upon, you must install a system that is properly sized for your house. This is usually something that the homeowner cannot do on his or her own. Your heating contractor should perform an approved heat loss on your home to determine exactly how much heat is required to heat your home comfortably on the coldest day of the year, and no more. Installing too large of a heating system will only waste energy and break down more often, shortening the life of the system.

If your contractor simply looks at your old system and quotes you a price on a system of the same size, be skeptical. This is a common practice and it is irresponsible. Your old heating system is probably between 15 and 40 years old. Now, take a moment and think of all the changes your home has undergone in that doors, new windows, added insulation in the attic, perhaps even an addition to the home. All of these factor into the proper sizing of your heating system.

Even if your home has gone through no major changes since the installation of the existing heating system, who's to say that it was ever properly sized to begin with? It simply cannot be stressed enough: a heating system must fit the home exactly. A system that is too big or too small will lead to future problems, higher fuel bills and the premature failure of the system.

AFUE and efficiency. Today's heating systems come in two basic efficiencies, the 80% efficient models and the 90% efficient models. Efficiencies are measured by their Annual Fuel Utilization of Energy, or AFUE. What does this mean? It is very similar to the way Miles Per Gallon or MPG, is used to determine how efficient a car's engine is. The higher the rating, the more efficient the heating system.

High efficiency or low efficiency? The minimum efficient heating system you can purchase today is 78% and the maximum is about 97%. You may be saying to yourself, "It seems silly not to purchase the most efficient heating system available since it will save me the most money on my energy bills."

A system that is too big or too small will lead to future problems, higher fuel bills and the premature failure of the system.

This may be true, but there are many other factors involved when you are considering a very high-efficiency system. These include whether you will vent the system, using a direct vent or the chimney. The 90% efficient systems require what is called direct venting. This method bypasses your chimney and goes directly through the wall of the house. There are very strict codes set by both the manufacturers and most states as to how direct venting may be done. If these specifications are not rigidly followed, the results could lead to carbon monoxide poisoning.

The 80% efficient systems are vented using your existing chimney, and thus are much more economical to install. In some instances it is mandatory to line your existing chimney with an aluminum or steel liner to ensure that no condensation of the waste gasses occurs within the chimney causing masonry problems down the road.

If your existing furnace or boiler is over 17 years old, upgrading to an 80% efficient system will probably come close to cutting your existing fuel bill by a third.

The best advice for selecting a new heating system is to compare the total investment in an 80% efficient system versus that of a 90% efficient system, factor out any incentives, rebates, etc., and break it all down to an apples-to-apples comparison. Then have the contractor show you what your energy savings will be. At this point, your choice should be obvious.


Installation is everything.
It doesn't matter whether you have the most expensive or the least expensive system on the market. Just as with anything, if a heating system is not installed properly it will not work properly.

Unfortunately, many contractors take shortcuts and there are many systems installed today that have more problems than they should. The challenge is, knowing whether your new system is installed properly. How can you know?

More often than not, you won't know until it's too late. That is why you, the customer, must be extremely selective regarding who you choose to install your new heating system.

Get references.
Any good contractor will be happy to supply you with a list of existing customers who you can contact. Visit your contractor at his place of business. Look around and see what type of operation they run. This is also a great time to ask questions, learn about the different brands and find out which system best suits your specific needs.

Don't be blinded by brand.>
Sure, there are differences between each brand of equipment, but don't let anyone sell you on one brand as being the best. A single manufacturer may be marketing as many as five or more brand names using equipment that is all virtually the same product. The key is to find a dependable contractor who is factory authorized and trained to install the heating equipment that best suits your home, your needs, your lifestyle and your budget.

Hundreds of dollars can be saved when you install or change your old air conditioner at the same time you install a new heating system.

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We service most AC brands and models near Minneapolis MN.
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7900 Excelsior Blvd. #750
Hopkins, MN 55343
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