Temperatures seem to be rising nowadays. So who doesn't want to have central air units at home or at the office, right? However, cooling costs median homeowners nearly half of the home's total vigor bill. So before you go out and buy yourself a cooling system, there are some things you have to think about to ensure that what you buy functions efficiently and worth the money, you paid.
First, you have to rule the size of the unit. This can be done through an appraisal of the cooling load. Cooling load is measured in either British Thermal Units (Btus) per hour or tons (12000 Btu/hr is equivalent to one ton). Cooling load can be carefully through the size of area size, atmosphere and other factors like shade, glass area and ventilation. If you have no idea how to do this, you might as well as a contractor. Buying the exact size will ensure that your unit will cool your house effectively. Not buying the exact size could corollary to an increase in climatic characteristic variability, which does not sell out humidity effectively.
Central Air Problems
Second, make sure that the central air units you buy do not use R-22 refrigerant or Freon. With the qoute with global warming, you do not want to add more to the Earth's carbon problems. Freon damages the atmosphere's ozone layer. It should contain the R-410A and not R-22. However, this is more high-priced but R-22 will not be ready in the store after 2009.
Third, it is best to have a model with scroll compressors instead of reciprocating compressors. The advantage of using scroll compressors is that they are quieter and more efficient. A disadvantage of this type of compressor though is that overcharging the principles can corollary to liquid refrigerant flowing. This is because of the smaller volume of this type of compressor.
Fourth, in buying central air units, you have to look for sound dampening features like vibration isolation for the compressor and insulation. This type of feature cannot only lower noise, heavy-duty wire grids and caps can also protect the unit from weather and impacts from sports or lawn equipment.
Lastly, keep in mind that the cost of your unit will differ significantly depending on the ductwork that is already present in your home. Remember that it will cost you more if your ductwork is already old and leaky and needs replacement.
These are just a few tips that you should know before you rule to buy central air units.
A Few Tips in Buying Central Air UnitsHigh Pressure Sensor Absolute Pressure Sensors Absolute Encoders