If you are considering upgrading or replacing your current air conditioner with a ductless system, you may have already started to shop around for the options. One thing you may have already seen is that each model has a SEER rating. So, what is a SEER and is it an important factor in your purchase decision.
The Benefits of A Ductless System:
One of the primary reasons why many homeowners choose a ductless air conditioning system is that it is one of the most efficient options. Since there is no ductwork, there is no risk of air leaks compromising the efficiency of your system. You can also use ductless units to create cooling zones within your home, allowing you greater control over your comfort level. While ductless systems are generally very efficient, it is still important to understand the impact the SEER rating can have on your choice of appliance.
The SEER Basics:
SEER is an acronym for Seasonal Energy Efficiency Ratio. Simply put, it is a measure of how well the appliance makes use of the energy consumed. This ratio is derived from a simple formula of the ratio of cooling power delivered in BTU (British Thermal Units) compared to the energy it consumes in watt hours. The higher the number, the more effectively the energy is used by the appliance. This means that the running costs of a higher SEER unit will be less in comparison to a lower SEER rated, yet similarly powered unit. Most modern systems have a minimum SEER rating of 14, but older systems can have a far lower SEER rating. Certain states have minimum SEER requirements, but these standards are only applied to brand new units, so it is still possible to find older units that fail to meet the standard. As the technology improved, we have seen SEER ratings increasing dramatically, so many modern units have an efficiency rate that is far greater than even the most efficient unit from a few years ago.
Balancing SEER and Power:
Generally, it is a good idea to buy a system with the highest SEER rating, if it is within your budget. Unfortunately, this is not the only consideration when you are shopping for a ductless air conditioning system. You also need to ensure that the SEER rate is balanced against the power level offered. If you buy a high SEER rated ductless model, but it is underpowered, you will negate the benefits of improved efficiency. An underpowered unit will need to work excessively hard in order to cool the space. Likewise, an overpowered unit will have similar problems. If it is too large for the area, it is likely to short cycle and waste energy. An incorrectly sized unit will also have issues with excessive wear and tear, which will compromise the lifespan of the unit.
This should highlight the importance of determining the correct power level for the unique requirements of your home. Fortunately, professional HVAC specialists can provide an energy audit to determine your specific air conditioner needs. This information will allow you to choose an appropriate unit with the highest possible SEER rating for maximum energy savings.