A non-inverter type air conditioner is a basic model which operates at a fixed speed. It simply controls the temperature by switching the compressor on/off alternately. The non-inverter types are commonly sold in stores and these are significantly cheaper to buy but consume up to 40% more electricity.
An inverter type air conditioner has a variable-speed compressor which constantly regulates its speed to match to the desired temperature. This results in a more economic method of operation and energy-efficiency. Even though the inverter type units are more costly to buy, inverter units offer a wise long-term investment due to their energy efficient operation.
In order to decide which option is best for you, consider how frequently and at what level the system will be used. (ie: Will it be operating at maximum settings for long periods?)
All non-inverter and inverter type air conditioners offered on this website are R410 refrigerant units. (ie: this is the environmentally friendly refrigerant type).