Cooling - Whole House

 

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What is it?

 

Ducted Evaporative Air Conditioning

Ducted Reverse Cycle Refrigerated Air Conditioning

 

Evaporative cooling is an entirely natural method of cooling, using only air and water - to cool air through the simple principle of evaporation of water.

Ducted reverse cycle refrigerated air conditioners consist of a compressor, fan and heat exchange coil and use a refrigerant to cool the air.

How does it work?

 

Ducted Evaporative Air Conditioning

Ducted Reverse Cycle Refrigerated Air Conditioning

 

Hot air is drawn into the cooler and passes through water-moistened pads or specifically designed cells. 
Some of the water evaporates, absorbing the heat as it does so, and cools the air.
A fan then blows this beautifully cooled air throughout the room/house and forces hot air out through open windows and doors.
Ducted evaporative air conditioning units are normally positioned on the roof with ducting throughout the roof space to direct air into the rooms of the home.

Refrigerated air conditioners have two separate mechanical parts, an outdoor compressor and an indoor unit/fan coil.
The outdoor compressor unit compresses refrigerant gas into a liquid state to allow the refrigeration effect to take place, exactly the same way as does your home refrigerator.
The compressed gas is transferred into the indoor unit. 
The indoor unit basically consists of a fan and a heat exchange coil.
The fan is connected and then controlled by a room installed thermostat that draws the air from inside the home, passes it through a filter and then recirculates throughout your home approximately 10 times each hour. 
Ducted refrigerated air conditioning units are normally positioned inside the roof, as well as an inverter unit outside the house (usually on a side wall) with ducting throughout the roof space to direct air into the rooms of the home.

What is the average cost of purchasing and installing a system?

 

Ducted Evaporative Air Conditioning

Ducted Reverse Cycle Refrigerated Air Conditioning

 

$4,000 AUD-$15,000 AUD

*This is approximate and could vary depending on the size of your home, number of ducts and quality of the unit.

$4,000 AUD - $20,000 AUD

*This is approximate

and could vary depending on the size of your home, number of ducts and quality of the unit.

How much energy does it use and how much will it cost to run?

 

Ducted Evaporative Air Conditioning

Ducted Reverse Cycle Refrigerated Air Conditioning

 

Due to varying energy prices and usage variations it is difficult to provide a cost. Evaporative air conditioners generally use much less energy to cool than refrigerated air conditioners, so ongoing costs are lower. Please use our online calculator to enter details about your house and location to calculate the amount of energy the unit will use to run and an approximate cost.

Due to varying energy prices and usage variations it is difficult to provide a cost. Refrigerated air conditioners generally use more energy to cool than evaporative air conditioners.

How much water does it use?

 

Ducted Evaporative Air Conditioning

Ducted Reverse Cycle Refrigerated Air Conditioning

 

All evaporative air conditioners use water to produce the cooling effect. 
The amount varies with the size of the air conditioner, the amount of cooling selected, and the ambient conditions.

Braemar air conditioners have the patented WATERmanager®, a unique feature which keeps the system clean and ensures you save precious water by minimising water loss through dumping.

Click here for Breezair or here for Braemar to read the brochure 'Breezair/Braemar Water and Energy Use 2007' which compares typical household water use in Australia to Breezair/Braemar evaporative air conditioning.

Refrigerated units do not use water to cool.

What is the most effective system for my climate?

 

Ducted Evaporative Air Conditioning

Ducted Reverse Cycle Refrigerated Air Conditioning

 

Most effective in hot & dry climates

Most effective in hot & humid climates

What is the difference in air circulation?

 

Ducted Evaporative Air Conditioning

Ducted Reverse Cycle Refrigerated Air Conditioning

 

Evaporative air conditioners constantly draw fresh air into the home rather than circulating the air.

The resulting air has added moisture.

Refrigerated air conditioners continually recirculate the air.
This cooling type removes moisture from the air as it cools.
Some people find it can dry out the eyes and skin.

Lifestyle considerations

 

Ducted Evaporative Air Conditioning

Ducted Reverse Cycle Refrigerated Air Conditioning

 

Because the cool air is fresh, the hot moist air must be pushed out of the home, so windows or doors must be left open.

Because the cool air is recirculated, windows or doors need to be closed otherwise the cool air escapes.

Environmental considerations

 

Ducted Evaporative Air Conditioning

Ducted Reverse Cycle Refrigerated Air Conditioning

 

Carbon dioxide emissions are many times lower than a refrigerated system.
No synthetic refrigerants are used so they do not emit HCFCs.
Because they use so little power, they minimise greenhouse gases from electricity production.

Carbon dioxide emissions are many times higher than an evaporative system.

These systems use synthetic refrigerants to cool.

You can minise the impact on the environment by selecting a system with an inverter and referring to the star ratings.

What is the maximum temperature reduction?

 

Ducted Evaporative Air Conditioning

Ducted Reverse Cycle Refrigerated Air Conditioning

 

Is capable of bringing the temperature down by a maximum of approximately 12°C (22F) from the outside temperature.

Is capable of bringing the temperature down by a maximum of approximately 25°C (45F) from the outside temperature.

Note: this is largely dependent on the outside air temperature and how long the system has been running.

Seeley International Brands

 

Ducted Evaporative Air Conditioning

Ducted Reverse Cycle Refrigerated Air Conditioning

 

 

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Where do I buy or find out more information about these systems?

 

Ducted Evaporative Air Conditioning

Ducted Reverse Cycle Refrigerated Air Conditioning

 

Ducted evaporative air conditioners are available from specialist heating and cooling dealers.

To find your closest Breezair, Braemar or Coolair dealer, please visit the dealer fast find here.

Ducted refrigerated system are available from specialist heating and cooling dealers.

To find your closest Haier dealer, please visit the dealer fast find here.

 

end faq

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