15 day heat wave and air conditioning

[fritz]

Well I guess you are just easily pleased for 95% of summer.

Let's put this thread to rest...can we all agree that...

Advantages of evaps. ACs...........................
Cheap to buy
Cheap to run
Useful most of the time in dry climates like Adelaide


Disadvantages of evap. ACs...................................
Marginal cooling effect, only 10degC or so under optimum conditions.
They increase humidity - which can make it more uncomfortable.
Useless most of the time for much of Australia, Sydney, Brisbane, Darwin etc.
Useless anywhere when ambient humidity is high.
Require a water supply

Advantages of refrigeration/heat pump ACs...........................
Maximum cooling effect - 20degC or more is easily achieved.
They decrease humidity - which makes it more comfortable.
They always cool effectively and always decrease humidity.
Usefull all of the time anywhere in OZ.
Reverse cycle units can heat efficiently in winter

Disadvantages of refrigeration/heat pump ACs...................................
Higher initial cost.
Higher running costs - compressor, twin fans.
Require water drainage.

 

[Bristan]

No, but air south of Adelalaide comes from cooler regions until global
warming really destroys the Antarctic!
Maybe you need to consult a map to get some idea?

Incidentally, when a cool change hits a location and it rains, the moisture
comes from the warm air at the location and not the cool air arriving. The
warm moist air is forced to rise quickly where it condenses and rain is
formed. If the warm air is too dry then it won't rain. Sort of shot yourself
in the foot over that one. By definition, if it rains then it must have been
humid.

Now tell me that is wrong, no doubt you will.

Yours and othe greenie comments confirm my suspicions that this thread is
based on pro green propaganda more than common sense as I said before.

On another note....Refrigerated air works %100 of the time. Not just when
the weather is right.
It also works well in any location not just hot dry places
It especially works well on humid days and that is when aircon is most
desireable
It takes moisture out of the air and not put it back in. It can also be an
efficient heater outputting around double the heat energy in Joules that it
uses in electrical energy input joules
It has never been more affordable and is quite reasonable to install with
flexible ducts etc. Split systems are very cheap.

Oh, BTW I take it as read that you will disagree with everthing I have said
above so there is no need to reply, tho no doubt you will.
I have no interest in continuing corresponding with internet lowlifes who
never contribute anything positive, have limited knowledge on the subject
and just vent their aggression in the manner that you do.
I will however be glad to correct your lack of knowledge when it is
displayed in future here or anywhere else.
Maybe you can stir up that frequent poster who you enjoy fighting with to
help you with the chip on your shoulder

 

[[email protected]]

Well I guess you are just easily pleased for 95% of summer.

Well an average temp in the house in the low twenties on any given day
is acceptable to me.

 

[Bristan]

Well an average temp in the house in the low twenties on any given day
is acceptable to me.

Well Geoff, why not use an electric fan. Even cheaper to run and:....

Works fine in Melbourne eastern states in my experience. Great cooling for
94.80% summer.

 

[[email protected]]

Well Geoff, why not use an electric fan. Even cheaper to run and:....

Works fine in Melbourne eastern states in my experience. Great cooling for
94.80% summer.

You are a sarcastic twat. Seems you cant stand the fact that evap
coolers work well. I'd say you have never lived with one, you just
quote theoretical generic and erroneous shit about weather, listen to
the other posters who speak from experience and don't want to big
electricity bills.

 

[Bristan]

You are a sarcastic twat. Seems you cant stand the fact that evap
coolers work well. I'd say you have never lived with one, you just
quote theoretical generic and erroneous shit about weather, listen to
the other posters who speak from experience and don't want to big
electricity bills.

Poor little geoffie is upset.
Never mind , save your pennies, work hard and you never know you might be
able to save up and buy a proper aircon.
Maybe you are getting a little hot under the collar. Better go and cool
down..... find a refrigerated aircon
When did they get electricity down there anyway?

 

[[email protected]]

Poor little geoffie is upset.
Never mind , save your pennies, work hard and you never know you might be
able to save up and buy a proper aircon.
Maybe you are getting a little hot under the collar. Better go and cool
down..... find a refrigerated aircon
When did they get electricity down there anyway?

Hey stupid lad, I have no problems here. You are the one backed into a
corner.

 

[Bristan]

Hey Geoffie,

Have to tell you this.

The greenies invented a new plane.
Unfortunately it crashed 95% of the way through its maiden flight.
It seems the designers reckoned as long as it worked for 95% of the time
then that was fine.

 

[[email protected]]

LOL. The pompous **** thinks I'm a greenie for being reasonable and
practical. Must be from Sydney and assumes everywhere is humid like
that stinkhole.

 

[Bristan]

The scum has surfaced

cya

 

[Bristan]

He still needs a good map too if he thinks there are "Melbourne Eastern
States"

MrT.

Dickhead, I told you I would correct you . They are jeffies words not mine.
Obviously the irony has gone over your head.

 

[Mr.T]

Incidentally, when a cool change hits a location and it rains, the moisture
comes from the warm air at the location and not the cool air arriving. The
warm moist air is forced to rise quickly where it condenses and rain is
formed. If the warm air is too dry then it won't rain. Sort of shot yourself
in the foot over that one. By definition, if it rains then it must have been
humid.

Now tell me that is wrong, no doubt you will.

Couldn't be bothered, the concept of warm moist air Vs HOT dry air seems to
escape you for a start. And the concept of rapid air changes caused by
strong wind also seems to be lost on you. We DO have long periods of hot dry
air followed by rain in the southern states. But feel free to believe
whatever you like, as long as you don't have to prove it. I sure don't give
a rats how ignorant you choose to be.

Yours and othe greenie comments confirm my suspicions that this thread is
based on pro green propaganda more than common sense as I said before.

You have proven you have none at least. Nor any consideration of anyone
besides yourself.

It has never been more affordable and is quite reasonable to install with
flexible ducts etc. Split systems are very cheap.

To buy, yes compared to only a few years ago. And some people can even
afford to run them at the moment.

Oh, BTW I take it as read that you will disagree with everthing I have said
above so there is no need to reply, tho no doubt you will.

Of course you agree with everything I have said then?

I have no interest in continuing corresponding with internet lowlifes who
never contribute anything positive, have limited knowledge on the subject
and just vent their aggression in the manner that you do.

Are you looking in the mirror? I couldn't have put YOUR "contribution"
better myself.

I will however be glad to correct your lack of knowledge when it is
displayed in future here or anywhere else.

But you still haven't proven ANYTHING I have said that is actually wrong.
Better luck with your next tilt at windmills.

MrT.

 

[Mr.T]

Sounds good enough to me! Personally I wouldn't be without ceiling fans even
(or especially) in the more northern states, even with RAC.

You are a sarcastic twat. Seems you cant stand the fact that evap
coolers work well. I'd say you have never lived with one, you just
quote theoretical generic and erroneous shit about weather, listen to
the other posters who speak from experience and don't want to big
electricity bills.

He still needs a good map too if he thinks there are "Melbourne Eastern
States"

MrT.

 

[Mr.T]

Sounds good enough to me! Personally I wouldn't be without ceiling fans even
(or especially) in the more northern states, even with RAC.

You are a sarcastic twat. Seems you cant stand the fact that evap
coolers work well. I'd say you have never lived with one, you just
quote theoretical generic and erroneous shit about weather, listen to
the other posters who speak from experience and don't want to big
electricity bills.

He still needs a good map too if he thinks there are "Melbourne Eastern
States"

MrT.

 

[Mr.T]

Sounds good enough to me! Personally I wouldn't be without ceiling fans even
(or especially) in the more northern states, even with RAC.

You are a sarcastic twat. Seems you cant stand the fact that evap
coolers work well. I'd say you have never lived with one, you just
quote theoretical generic and erroneous shit about weather, listen to
the other posters who speak from experience and don't want to big
electricity bills.

He still needs a good map too if he thinks there are "Melbourne Eastern
States"

MrT.

 

[RMD]

Hi Tony,

And I suspect the pads lose efficiency over the years and I am thinking of
replacing mine. Or has anyone ever managed to "revive" them? They clog up with
calcium and dirt over time and I wondered if the same treatment you give pool
filters would work with them? (acid bath)

I'm told they need to be hosed off at the close of every season to get
rid of evaporated salts, mud etc.

However, after a few years (probably >5-8 years) they do need to be
replaced since a/c effectiveness drops off. They did initially claim
the celltek pads practically lasted forever, but that proved to be
optimistic.

If you are handy it is an easy job to do yourself. I haven't yet
priced replacement pads, but I'm told the celltek pads are not that
inexpensive.

They do work surprisingly well if the conditions are right. Yet I can't get
myself putting up with a relative humidity higher than 60%

I wondered about that myself. At 22C here in Adelaide it is often 50%
humidity. And early this morning it was 14C and 65% humidity.

I'm unable to tell the difference between 22C at 50% humidity, or 22C
at 70% humidity. I thought I would easily know the difference but I
don't.

Without the a/c if the house got to 25C I felt like turning on a fan.
It was surprisingly consistent for me to do this.

I'm often seriously engrossed on my computer, and I was surprised to
find that dead on 25C with the evaporative a/c running I felt like
running a fan again.

Intuitively I'd have thought that the need to turn on a fan would
occur lower than 25C because of the higher humidity. But it didn'r. I
was a bit surprised at that.

Btw the Steadman Chart says 22C air at 50% humidity has an apparent
temperature of 22C, while 22C air at 70% humidity has an apparent
temperature of 24C. So my intuitive feeling is backed by scientific
fact.

However, for me I could tell no difference between 50% and 70%
humidity at 22C, despite the Steadman figures saying I should be able
to.

Ross

 

[Mr.T]

Dickhead, I told you I would correct you . They are jeffies words not mine.
Obviously the irony has gone over your head.

No correction or irony, you simply deleted the relevant information and
headers I included, so you are not only stupid, but a liar as well.

MrT.

 

[B J Foster]

LOL. The pompous **** thinks I'm a greenie for being reasonable and
practical. Must be from Sydney and assumes everywhere is humid like
that stinkhole.

Can someone please direct me to the electronics newsgroup?