You might not consider money to be an object. Realize that bigger does not necessarily mean better in regards to AC units. Be sure that you invest in a unit that is tailored to the needs of your own space.
The following is a buyer’s checklist for air conditioning units:
1. The more high-efficiency units cost more at the beginning. However, you will save money in the long run due to the lower costs of energy. The amount that you potentially could save depends on which unit your purchase, and how often you use it.
2. Choose between a fixed-speed and inverter motor. The inverter-based home AC units have a variable motor speed, so they are more energy-efficient. They also are quieter, because they use dc air conditioner controls. Fixed-speed systems are less expensive, though.
3. A low-efficiency unit is better than an old unit. This is because AC units now are much further ahead in terms of efficiency compared to how they were 20 years ago. Even if you were to purchase the most low-efficiency unit that it out today, you still have the potential to cut energy costs in half.
4. In a house that does not have AC ducts, consider using a split AC system. In this type of system, the compressor is located on the outside of the home, while the evaporators and blowers are on the inside. Though a split system costs more, it can be less expensive to install. Another benefit is that you can adjust the temperature in each room separately.
5. If you have a small home or you are renting, try a portable ac unit. It is an ideal option when the homeowner will not allow you to install a system.
6. It is crucial that you find a unit that is the right size for your home. Biggest is not always better, although this is a commonly held belief. The AC unit should both keep the area cool and dehumidify the air. Installing a unit that is bigger than is needed will cause it to shut off before it can dehumidify. Consider BTU’s when you are choosing a unit. For instance, if you want to cool an area that is 1,000 square feet, you will need a 19,500 BTU unit.
7. Check that the unit is at least a 13 SEER (or seasonal energy efficiency rating). It is a requirement by law that you buy a unit that is a 13 SEER or better. Mid-range efficiency is available in a unit that is between 14.5 and 17 SEER, while over 17 is considered to be high-efficiency.
8. Select either an R410a or R407c system. The R22 is being phased out because of domestic laws and some international agreements. The R410a units are the more efficient out of these two types.