Air Conditioners

Hemi300c said:
Square meters of the room x 600 gives a indication, but then other factors come into play like:-
open plan
large windows
roof insulation
electronic goods in the room
flooring
etc
Rather get a 12000BTU than a 9000BTU because the price diff is minimal.
Click to expand...

True but bigger is not always better, a large unit in a small room will cool it too quickly and leave alot of humidity in the air and will be switching on and off more often than a constant cool from a smaller unit. Although what I've said does not really apply here as he's trying to cool 2 rooms.
 
theratman said:
True but bigger is not always better, a large unit in a small room will cool it too quickly and leave alot of humidity in the air and will be switching on and off more often than a constant cool from a smaller unit. Although what I've said does not really apply here as he's trying to cool 2 rooms.
Click to expand...

And if you get too small the thing sits on most of the time.
 
Watch the boards on the new ones. Watch the board replacement costs when required within 36 months. Exceeds 35 percent of the entire unit replacement cost. Then try to purchase that board yourself for much cheaper. Samsung gives you a number and claims anyone can buy the board. Seller says only registered dealers. Call Samsung back and again they say anyone can. When you tire of pass the buck, fit a generic. Previously bought twelve Samsung units for various properties, in every instance the replacement generic brand a/c unit outlasted the Samsung. I refer only to split units, but their cassette and ducted units may be as prone to failure.
 
Last edited:
Has anyone had experience with Aux-Air and Jet-Air air-conditioners? After doing some searching for airconditioners, these two brands seem to come up fairly frequently and the suppy + install price is really cheap.

Are they cheap for a reason? ie: not very good? Should I rather be sticking with the likes of LG, Samsung, etc. Any other brands that are ok (alliance air, carrier, daikin, IQ)?

I got a supply+install quote from one particular LG installer and compared that to some sites offereing Aux-Air and Jet-Air. The Aux-Air and Jet-Air is 35% cheaper. Does anyone have any experience with these?

I am looking for a split wall style aircon for a home office which is 3.3m x 3.6m. I presume a 9000BTU is plenty.

Many thanks.
 
Last edited:
Sorry for the necro. Just thought that people might find this interesting and a good reference should you want to go down the AC route. I asked TruTemp for a quote to put 3 aircons in. This is what I got back. Prices include installation and VAT.
Oh and you get 2.5% discount for cash upfront :P

Daikin Emura 2:
9000btu = R24500
24000btu = R30790

Panasonic Premium Deluxe:
9000btu = R22000
24000btu = R33000

Midea 3D Mission wifi (Dunno why they quoted this POS)
9000btu = R17680
24000btu = R25660
 
calypso said:
Sorry for the necro. Just thought that people might find this interesting and a good reference should you want to go down the AC route. I asked TruTemp for a quote to put 3 aircons in. This is what I got back. Prices include installation and VAT.
Oh and you get 2.5% discount for cash upfront :P

Daikin Emura 2:
9000btu = R24500
24000btu = R30790

Panasonic Premium Deluxe:
9000btu = R22000
24000btu = R33000

Midea 3D Mission wifi (Dunno why they quoted this POS)
9000btu = R17680
24000btu = R25660
Click to expand...

I hope those prices include all 3 units and not one :)
 
theratman said:
True but bigger is not always better, a large unit in a small room will cool it too quickly and leave alot of humidity in the air and will be switching on and off more often than a constant cool from a smaller unit. Although what I've said does not really apply here as he's trying to cool 2 rooms.
Click to expand...

And one staying on constantly would use more power.

But then the larger unit will also draw more power even if it's off more often so it probably balances out.


A related question I have is what is the efficiency like of a Split unit for HEATING over other conventional heater systems? On one hand the fact that it's thermally controlled and doesn't just stay on permanently tells me it should use less power overall.

On the flip side it's a much higher power device to begin with.
 
We used these guys for 3 home AC units in January 2016 and were very impressed:
http://xtremethermosystems.co.za/specials-

The prices there are for back2back installations but they charge R150/m extra beyond the piping that comes with the AC unit (3m). Pay the extra and have the outdoor compressor installed where the vibration it causes will be less bothersome.
 
Last edited:
SauRoNZA said:
And one staying on constantly would use more power.

But then the larger unit will also draw more power even if it's off more often so it probably balances out.


A related question I have is what is the efficiency like of a Split unit for HEATING over other conventional heater systems? On one hand the fact that it's thermally controlled and doesn't just stay on permanently tells me it should use less power overall.

On the flip side it's a much higher power device to begin with.
Click to expand...

I'd avoid using it for heating purposes, I don't have anything to back me up but I'm sure there are many better alternatives like gas or combustion heating that are more efficient. A gas heater heats up a room incredibly quickly and that heat tends to hang around longer.
 
theratman said:
I'd avoid using it for heating purposes, I don't have anything to back me up but I'm sure there are many better alternatives like gas or combustion heating that are more efficient. A gas heater heats up a room incredibly quickly and that heat tends to hang around longer.
Click to expand...

It doesn't help when you say you have nothing to back it up.

I see Americans and other ducting based systems actually recommend switching to split-units for better more efficient heating.

Sadly in the general scope of "what heater should I use" these more permanent option are left out of comparisons.
 
Last edited:
SauRoNZA said:
Seems a split system is more efficient than gas if you ask Google the right questions.

But then I don't know if they mean "central air" type car systems or portable gas heaters.
Click to expand...
Gas is a very capable space heater. Trying to heat a space with gas smaller than 5x5 will eat up the oxygen and cause headaches. I find our 9000btu's heat/cool our bedrooms very efficiently whereas the 18000btu in the lounge is much better at cooling than heating the space. We put it on fan only whilst the gas heater is running, for example.
 
Last edited:
Heat pump heating is MUCH more efficient than any other form...
My aircons draw about 1kw in max heat mode and put out 3 to 4kw worth of heat
 
SauRoNZA said:
It doesn't help when you say you have nothing to back it up.

I see Americans and other ducting based systems actually recommend switching to split-units for better more efficient heating.

Sadly in the general scope of "what heater should I use" these more permanent option are left out of comparisons.
Click to expand...

Of course it doesn't, but I'm speaking from personal experience having both. The heat from the gas heater tends to linger longer than the heat from the aircon plus its portable and quieter.
 
lcbxx said:
Gas is a very capable space heater. Trying to heat a space with gas smaller than 5x5 will eat up the oxygen and cause headaches. I find our 9000btu's heat/cool our bedrooms very efficiently whereas the 18000btu in the lounge is much better at cooling than heating the space. We put it on fan only whilst the gas heater is running, for example.
Click to expand...
Heating and cooling performance not always symmetrical. Might be undersized to heat the lounge. Also seems that efficiency drops with higher power outputs.
 
theratman said:
Of course it doesn't, but I'm speaking from personal experience having both. The heat from the gas heater tends to linger longer than the heat from the aircon plus its portable and quieter.
Click to expand...

That is certainly true, the noise does work on my tits sometimes if I want to watch TV.

I find gas heater heat a little overwhelming.

That being said I run my aircon heater at 20 degrees, maybe 22 if I really feel chilly.
 
You must log in or register to reply here.
Back
Top
Sign up to the MyBroadband newsletter
X