How can I increase the energy efficiency of my equipment?
It is necessary to keep air conditioning/heating equipment at peak performance with preventative maintenance. Cleaning/replacement of dirty filters, keeping the right charge and airflow, cleaning the coils helps to save on energy costs, improve overall comfort at home, and helps fight global warming.
To attain the highest efficiency it is necessary to ensure that the inside of a room cabinet is insulated properly. Insulation will provide protection from outside hot air in cooling season and outside cold air in heating season.
If you are replacing an air conditioner, look to buy high efficiency equipment. EER rating stands for Energy Efficiency Ratio and describes how well the system (window A/C, PTAC, WSHP) will work at peak season. SEER is the Seasonal Efficiency Ratio and is used to describe efficiency levels of split systems. The higher efficiencies are likely to be quite cost effective.