OT Refrigerated or Evaporative Air Con for your house

Not true they are used in Qld but in specific places like laundries (Royal Brisbane Hospital had hundreds of them) as refrigerated units can not handle the latent heatload caused by the huge amounts of water vapour in a laundry area.
I too have refrigerated A/C and I can not see why anyone who lives in an even mildly humid area would want to have a swamp box to cool their house, also there is the water usage problem as they are heavy users of water and I feel they should be banned from use with water restrictions that are in place in most of our city's.
Gets off soapbox.

Manufactured and Sold in Mt.Isa.

Ken,

You are life's living, breathing (only just), waliking, talking, pontificating, version of life's pudenda LOL.

Next time you pop into the factory, give me a little notice so that I can set the appropriate time aside to chat with you.

Kind Regards,

Jim

Well said Willem.

What's air conditioning? Especially at home? This is Australia - it's hot - we need to learn to live with it.

Mike Harding

err Brew....no such thing as a self cleaning evap...the dump valve only reduces sediemnt build up. which may reduce cleaning time...one should always clean their evap evry three months during the operating season...thats 3 time per year minimum

well i must owe mine 12

well get up there and do it before the hot weather hits...belt probably needs tightening or even replacing anyway..if it has one
check all water sprays to make sure they aint blocked and pump filter...listen for undue noise suggesting bearings may be crook and on their way out
as you havent done any servicing for 4 years get new filters why you at it...even celdeck should be replaced every 3-4 yrs at least...spend some of those $$$ you keep hoarding

Hmmm,

Can't agree with you there.

I was brought up in a solid brick home with a high roof and no air conditioning, back in the 50's & 60's.

I distinctly recall summer nights when it was so hot, we slept out on the front lawn on a blanket. Course, back in those days there was virtually no risk of some spaced out peckerhead looking to bash & rob someone of enough cash or goods for their daily fix, or jollies.

The advantage of reverse cycle airconditioning is that the process is even more efficient and effective at pumping heat into a home, as it is in cooling it. It is in fact, one of the cheapest forms of heating when compared to other forms of heat sources for homes. Coupled with ducted air flow throughout a house there is very little else that can compete with it's efficiency and economy.

And on evaporative cooling technology, there is no cheaper and more efficient, more effective form of cooling for a house in those parts of Australia where high humidity is not a constant problem. The principal of evaporative cooling is to encourage large volumes of cool air flowing through a house, thus expelling hot, stale air.
This is common in places such as large shopping centres where external doors are being constantly opened. Some domestic evaporative air conditioners such as the Brivis Contour, use very little water to provide this cooling process and evaporative air conditioners can be used at night with a very low fan speed, with or without the evaporation process, to provide gentle air flow when sleeping.

So, there are pros and cons in both forms of Air Conditioners and it's purely up to homeowners to determine their own individual needs.

filter for filter and for the same amount of cooling capacity they all use the same amount of water....celdeck pads v aspen wood does make a tad difference to efficiency based on surface area etc etc of filter..

"This is common in places such as large shopping centres where external doors are being constantly opened"...not in adelaide it aint...its all refigerated air the large shopping centres

Davoe,

I can tell you from experience, Melbourne is not very humid. I lived in Townsville for 8 years, that is humid.

Melbourne's hotter days are usually driven by a hot, dry northerly wind. Rarely do we get a stinker combined with humidity.

Hence evap cooling is effective in Melbourne by bringing the temp down by 8 to 10 degrees. Thus on a day of 42, you can expect a best of 32 in the house. Now 32 is better than 42, but not what I call comfortable.

ATB,

Jim.

Montly humiidy stats for melbourne
9am 3pm
Nov 61 % 51%
dec 60% 48%
jan 60% 48%
Feb 64% 49%

Thats probably where the problem lays
But yea evaporative does loose effectiveness over 35 deg
I find it best if its going to be hot turning it on from the morning and leaving it on. Even if you go out for a bit still leave it on.
Still I prefer that to the alternative. My parents replace dudted evap with ducted refridge and started getting bills of $700

From the Breezair website


What is the maximum recommended humidity?
For best results, a maximum relative humidity at the hottest part of the day of about 70% is best. This will provide a minimum temperature reduction of between 8 and 10°F. In areas where humid days happen from time to time, great relief is often achieved by turning off the water pump (a standard feature of all Breezair coolers) and simply blowing fresh air - moving air always feels cooler than still air.

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How much will it reduce the temperature?
That depends on the temperature and humidity of the outside air. The chart towards the bottom of our Scientific Facts page shows how much the temperature can drop given a large range of conditions. For example, at a temperature of 90°F and a humidity of 40%, the air supply will be a very comfortable 73°F - a drop in temperature of 17 degrees.

17 degrees...is that F or C...just checking in before i may dispute

Nudie,

The thing didn't copy well, it says a drop from 90F to 73F, a decrease of 17F. Don't know here the 901 and 731 came from, it's a computer thing.

okay so its breezair talk for the yanks...we are now C not F...which is why I was questioning....cos i always thought (from trade school pschyometric chart plotting days) not to expect better than 10td (it was 18 in F talk back then too...)