DEN AIRCON recommends and uses Daikin, Fujitsu, Midea, Mitsubishi Electric, Samsung, and etc. wherever possible. Because they are a high quality, long lasting heater and they are made in Australia. In fact they are made in Melbourne and, as a bonus, keep Australians in a job. Now you know why DEN AIRCON is one of the fastest growing heating and cooling companies in Victoria. DEN AIRCON cover Melbourne city and all suburbs.