The top five most expensive in Australia are all battery operated air conditioner (BEA) units with a combined cost of $7,919.
This is $734 higher than the previous most expensive BEA in the country, the cheapest model, the $724.
This year, the BEA is priced at $8,299, more than doubling the price of the most-expensive model in the list, the older $6,599.
The next cheapest model is the $1,995-plus model from the previous year, and then the $2,000-plus models in 2018.
The top 10 most expensive are: