As technology improves, the Minimum Energy Performance Standards or MEPS levels are increased as well. In April 2011, these levels were increased and the star rating scales were modified to allow highly efficient models to accurately display their high star ratings.  For more information, please talk to your sales person to make sure you get the most efficient model to suit your requirements.

Minimum Energy Performance Standards, or MEPS, is a government regulation that requires all Air conditioners imported into Australia meet a minimum level of energy efficiency.

Energy Efficiency Ratio (for Cooling) and Co-efficient of Performance (for Heating) are ratios calculated using the input power usage and output capacity of an Air Conditioner. The higher the EER and COP's are, the more efficient the air conditioner is.

Horse power is a power rating for the compressor; this does not take into account the actual cooling and heating performance of the system. Kilowatts (kW) are a rating for the cooling/heating output of the entire Air Conditioner working together and not just the compressor.