Video transcript:
If you can use evaporative cooling in areas where it’s appropriate it really is the most cost-effective method of cooling you’ve got as opposed to running a condenser and a fan and a fan inside with reverse cycle air conditioning – all you are running is a fan and you’re taking air across effectively a wet blanket – an increase in the humidity and having a cooling effect so the more humid the more moisture is in the air the greater the cooling effect. So, in that respect you’re looking at what would cost about 20 cents an hour to run as opposed to reverse cycle air conditioning which is costing about a dollar 20 an hour to run.
It really depends on the efficiency of the individual unit and where you live.
If you’re in Sydney and it’s a hot humid day you’re not going to get any cooling effect by adding more moisture to the air that’s already humid. Whereas if you’re in Canberra or Melbourne where it’s a hot dry day and you add moisture to that air then it’s going to have a nice cooling effect.
So therefore, efficiency it’s not efficient if you’re not achieving what you’re trying to achieve which is a nice comfortable environment to live in. So if efficiency is achieving the result of what you want your expectation is – it really depends on installing the right system in the right location for where you live and how you live in your home but no matter where you live and what the cost, if evaporative cooling is appropriate for you then evaporative cooling will be cheaper to run.