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Are those freestanding A/C units worth the money?

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I saw them at Big C, I think they were on roller wheels. They seemed to blow cold although they had the benefit of pre conditioned air in the store already. I don't have the option of buying a window A/C so was wondering if these were decent for their price? Being in Pattaya I don't need to drop the temps that much most of the year.

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ID: 2   Posted (edited)

The majority are efficient, (I have one) however, please check the "noise" output. Some can be unbearably noisy. I do not know which one emits the least noise, but hopefully, someone else may have done the research and can advise you - good luck

PS Mine is refrigerated NOT evaporative.

Edited by MalandLee
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i bought a HATARI AIR COOLER [ht-ac1or1] classic 2,900bht. comes with 2ice packs.

my beloved dog suffers with the heat so this was ideal,not as good as air con in the bedroom but down stairs its fine for him.

they have a water tank 8ltrs.so i put 4 x 1.5ltrs.of water in the fridge overnight and it lasts around 8hrs.once you switch on.

when the water gets to minimum it switches off auto.ours has  4cool speeds,so far 2 is fine.

putting cold water plus one ice pack works fine.

when in the store have a look at what setting its on[1234] and if an ice pack is in the sump.gives you an idea how cold they are.

there is the next size up AIR COOLER TURBO around 5k.bht.

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The Mrs. tells me they can be heavy on electricity?

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Firstly I do not own one or would ever consider buying one. My experience is in building management.

These units can provide limited cooling but they are very inefficient. As mentioned they are noisy, that noise is wasted energy. The energy used to chill the water and freeze the ice packs also needs to be taken into account. High humidity also lessens there cooling effect. The reason they can look good in the stores is the air is already well conditioned, it is low temperature and low humidity air. These units expel cooler wetter air and that gives the appearance of being colder than it is.

All considered I would never recommend these units to be used at home.


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the evaporative type air "cooler"s are marginal in Thailand, if humidity is low (not a usual condition) when you will be some cooling effect. In saying that I have one and feel it is a little better than the bedroom ceiling fan during the night time but tends to be noisier than the slow running ceiling fan - so it's a compromise .

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These are what we call a swamp cooler the humidity needs to be low for them to work efficiently, here in the north a good option during the dry season. As it is stated on the cooler they will only drop the temp. 5 to 15 degrees again that depends on the humidity.

Place them near a outside air source a window or door so they can pull the hot dry air from outside also open any other windows and doors a bit to allow the air to be forced thru the room and outside, if you are only getting the air inside thru the cooler then eventually they will stop working because of the humidity rising in the room. Remember they will only cool down 5 to 15 degrees.

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We have the standard water cooler and it needed minor repairs. Took it to the local guy and my partner said he was considering buying one of the stand alone air cons for his mother. The response from the Thai repair guy was to save his money, they have a limited shelf life, break down a lot and then are useless. Words from a guy who you would think would be quite happy to take your money.

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We had one temporarily in a very small room and it worked very well, however it was noisy and used a lot of power. We gave it away so it is now in a studio/ study.

Normally they come with a "window kit" which exhausts the heat from the condenser outside, so you will preferably need a sliding window that can be locked slightly open.

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I use in 1 room only, the bedroom. Don't expect to chill your whole house down. If you run it for 6-7 hours for sleeping, the electric bill will still be OK.

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I had one and found it to be a total waste of money. It was useless.

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Seems to me we are discussing two entirely different machines on this thread. The OP, if I'm not mistaken, was enquiring about free-standing A/C units, not the evaporative units which use water cooled by ice-packs. One adds considerable humidity with minimal benefit and the other, if used with the aforementioned window kit to vent the heat generated by the condenser, would probably work fine as the unit should not be overworked due to being forced to overcome not only ambient temperatures but the heat generated by the unit, as well. However, the room size and location (lower, as opposed to upper level) would be key variables when gauging power consumption and wear and tear would be the chief concern if the unit were not to be adequately vented. Otherwise, power consumption should be comparable to a wall/ceiling mounted unit with an external condenser, with the only plausible benefit other than price being mobility. Doubtful you will find decent free-standing A/C units for less than 15K baht, however. And Big C is not exactly known for big ticket items. I would give Homepro or one of the independent dealers a look. Also, if you have stairs, that would detract from its "ease of maneuverability." These things aren't generally light.

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Buy a good fan. The water ones are useless and the real ac's are heavy on electricity.

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Sounds like the OP was talking a swamp cooler and not a real, mobile A/C.  Swamp coolers work fine in a "low humidity" environment...and Thailand is NOT a low environment.  

 

Many times stores selling these swamp coolers operate them "inside" their already air conditioned store where the air has been cooled and humidity lowered.   The swamp coolers then blow "cool" air...can really fool  you.  But quite often you'll see store selling swamp cooler just "outside" the store in the hot and humid environment don't seem to feel much better than a fan.   I based this on standing in front of swamp coolers running inside and outside a store.

 

 

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Air conditioners hands down any day of the week, your electricity bill will go up depending on the setting and usage, we leave ours on over night at 26 degrees, which is nice and comfortable, although I know a few people who like them set at 16, now that's freezing !!!

 

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What these evaporative coolers do is trade temperature for humidity. There's not much point to dropping the temperature by 5 degrees if you've increased the relative humidity from 60% to 90%. The human body cools by sweating, but if you are sweating at 90% humidity there is no cooling, only discomfort.

 

There is no such thing as a free-standing air conditioner. The heat it is producing has to be vented somewhere outside an enclosed place, otherwise the heat is circulating along with the cooling.

 

Evaporative coolers may work in inland areas such as semi-deserts where the RH is only 10%, and high ambient temperatures. That excludes most of Thailand.

 

They are a con, and I would never buy one at any price.

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The OP specifically mentions free standing and window A/C units.

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The water evaporative coolers are not at all effective in Thailand where the Humidity is over 50% year round. They are designed for dry desert environments such as AZ, USA. I lived there where the humidity is seldom over 5%. Unless you use a water  recirculator pump they use a lot of water and the pads must be replaced occasionally. 

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if  he "is"  talking about free standing aircon as  opposed to water  cooler types then the ones with TWO vents are  ok ones with one vent are again not  good and inefficient, LOOK on Yout  Tube about 2  hose  portable aircons

 

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I have two Mitsuta "evaporation" air coolers.  Before I bought them I looked at the "portable" air conditioners.  For the air conditioners to work properly they must be vented outside side they cool and recirculate the air in the room and must vent the heat somewhere.  If you don't vent them outside all you are doing is blowing cool air out the front and the heated air out the back..  I also found that they were  very noisy since the entire unit is in the room and not split with the compressor fan outside or at least in the outside part of a window unit. 

 

The evaporation units are designed to "exchange" the air in the room, not recirculate it, and work best if the intake is out near an open window and there is an open door or widow for the air to escape.  Having said that they do not work efficiently in high humidity environments, those that exist here in Thailand as the cooling is the result of the evaporation process which raise the humidity of the air output.  If the air is already humid the evaporation process is slow and the result is a small deference between the temperature of the intake and output air.

 

If I had windows that I could easily move the "exhaust kit" from one window to another I might have bought one, but exhausting it outside in my house would require major rework and, other than the bedroom, the room where I spend most of my time is 86 square meters, too large for any to cool.

 

I chose the Mitsuta "evaporation" units mainly because of the size of the water tanks, one 32 liters the other 40 liters.  I ran test on the first one in my house.  When the inside temperature was 35.5 degrees at 37% humidity, the air output was 28.3 degrees at 77% humidity.  So it is definitely better to sit in front of a fan with 28.5 degree air blowing on you rather than being blasted with hot air. But their claim that they will reduce the air temperature in a 30-50 square meter room from 5-15 degrees is total BS in this humid environment.

 

The other consideration is the power consumption.  Most of the stand alone air con units that I looked at were between 200 and 2000 watts, the units that I bought are 150 watts.

 

You can find more info on this thread: https://www.thaivisa.com/forum/topic/973033-portable-room-air-conditione

 

Note: I'm fairly sure that if you talk to your landlord he will allow you to install a permanent air conditioner on the agreement that you leave it when you depart free of charge.

 

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14 hours ago, dotpoom said:

The Mrs. tells me they can be heavy on electricity?

Relative to what? The type I am thinking of are really just a fan and rely on evaporation cooling only.

In a warm room with high humidity they are of little benefit, but do cool in a dryer room, remember they will increase humidity where they are used,  something you may not want to do. The idea of stocking them up with ice packs or chilled water from the fridge sounds inconvenient.

 

Where they are demonstrated in the store they are being shown to their advantage. If you need a recommendation you need to talk to meatboy's dog.

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BANGKOK 28 April 2017 15:24
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