As people sift through the options when you replace your air conditioning unit, many people believe that bigger is better, however, this temptation should not be acted upon. As far as your air conditioning system is concerned, this is simply not true. There are a number of problems that develop when you get unit that is oversized for your home. With this in mind, we at Air Supply Heating & Air Conditioning would like to take the opportunity to share the problems that you will experience when your unit is too big for your home.
What are the Disadvantages of an Oversized Air Conditioner?
1) Too Hot or Cold. Instead of the gradual process that should be occurring, when an HVAC system is too large for home, it cools or heats your house in a fast and powerful blast. You get more even heating and cooling when your home’s temperature is gradually adjusted. Uncomfortable temperatures in your home are created when the HVAC systems with too much capacity causes hot or cold spots in your house.
2) Short Cycling. An issue called sort cycling can be caused by many sources, but when your AC turns off and on in rapid succession, or short cycling, can be due to a unit that is too large. Though it may sound nice to have an air conditioner so powerful that it can cool your house in minutes. The short cycling alone can dramatically shorten its lifespan as it can cause considerable wear and tear on your HVAC system.
3) More Costs. The system will use more power as it frequently turns off and on, making you pay on your energy bills. Additionally, an oversized HVAC system likely cost more than you need to be spending on initial purchase and installation. Because an oversized unit has a shorter lifespan due to mechanical issues caused by short cycling, you also will likely need to replace your HVAC system sooner. Another additional expense also comes from the extra repairs the added wear and tear does to the unit.
4) Elevated Humidity. A system that is too large does not run long enough for the dehumidification process to take place due to short cycling as a properly sized air conditioner will dehumidify the air as it is cooled. If in the event your HVAC is too big, the air in your home may feel damp and clammy.
How Do You Calculate AC Size?
Make certain you have a professional technician who can do a cooling load calculation when you are considering buying a new HVAC unit. To determine what sized HVAC system is best for you, the technicians use an equation and other factors. The number of rooms, square footage of your home, the number of doors and windows, insulation levels, the condition of your ductwork, the climate you live in, and more are all taken into account to get the air conditioning size you need.
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In addition to size, the energy efficiency, or SEER, is a consideration you need to determine the air conditioning unit that is right for you. Call Air Supply Air Conditioning & Heating and let our qualified technicians help you get the right air conditioning for your home.