harryfrompattaya Posted April 10, 2015 Share Posted April 10, 2015 I can not believe what I am reading all of my poor relatives on welfare who were even ex cons have air condition in American Stop trying to go so cheap Link to comment Share on other sites More sharing options...
thaibeachlovers Posted April 11, 2015 Share Posted April 11, 2015 You have to put ICE in them to work and they do, as long as there is ice in the water. Need a good supply of ice to be any good. OK if you can't afford proper AC. Unlike what appears to be most people on page one, I actually have one and used it before I got AC. Link to comment Share on other sites More sharing options...
Slain Posted April 11, 2015 Share Posted April 11, 2015 If you want air conditioning buy air conditioning. It's not too expensive in LOS Link to comment Share on other sites More sharing options...
thaibeachlovers Posted April 13, 2015 Share Posted April 13, 2015 If you want air conditioning buy air conditioning. It's not too expensive in LOS Large area units are damn expensive, and PERHAPS the OP is renting. Link to comment Share on other sites More sharing options...
thaibeachlovers Posted April 13, 2015 Share Posted April 13, 2015 I can not believe what I am reading all of my poor relatives on welfare who were even ex cons have air condition in American Stop trying to go so cheap Obviously US welfare is too generous then. Link to comment Share on other sites More sharing options...
strawberry Posted June 22, 2015 Share Posted June 22, 2015 Theh ok in dry climate but no good here Link to comment Share on other sites More sharing options...
pgrahmm Posted June 23, 2015 Share Posted June 23, 2015 I think I've commented already on this but put water in a bucket.....In a room that is 100F.......The water is now also 100F.......Now take that water and mist it into the air of a closed room - instant increased humidity with below minimal cooling effect......If effect you might raise the temperature a bit too - yours Link to comment Share on other sites More sharing options...
h90 Posted June 23, 2015 Share Posted June 23, 2015 Yes they work for the most part. But only about 1/4 of an A/C unit. Also they have a problem if things are very humid. But good enough to cool a room for say sleeping (as your body temp goes down while asleep) or reading, but for a dinner party.... not really. no not good for a sleeping room....it get too wet, fungus will grow everywhere. But good say barbecue outside, you get the fresh cool wind from it. Link to comment Share on other sites More sharing options...
pgrahmm Posted June 23, 2015 Share Posted June 23, 2015 Better keep them clean or you are flirting with Legionaires Disease Link to comment Share on other sites More sharing options...
pgrahmm Posted June 23, 2015 Share Posted June 23, 2015 If there isn't a BTU rating n/g Link to comment Share on other sites More sharing options...
kannot Posted June 23, 2015 Share Posted June 23, 2015 Useless, Link to comment Share on other sites More sharing options...
h90 Posted June 23, 2015 Share Posted June 23, 2015 Better keep them clean or you are flirting with Legionaires Disease Legionella and friends..... Link to comment Share on other sites More sharing options...
thaibeachlovers Posted June 23, 2015 Share Posted June 23, 2015 they don't work very well.. had one back in farang land and it didn't cool very well.. I even put ice in it.. Waste of money. One of those water fans that blow a mist may be better. but not as good as a proper air con. Hmmmm. You seem to have missed the point. They only work with cold water ie if you put ice in the water, or use the supplied cool pad. Link to comment Share on other sites More sharing options...
sometimewoodworker Posted June 23, 2015 Share Posted June 23, 2015 I think I've commented already on this but put water in a bucket.....In a room that is 100F.......The water is now also 100F.......Now take that water and mist it into the air of a closed room - instant increased humidity with below minimal cooling effect......If effect you might raise the temperature a bit too - yoursSorry not correct. You need to go back to physics 101. There is a cooling effect, though not great, with the change of state from liquid to gas. Link to comment Share on other sites More sharing options...
thaibeachlovers Posted June 24, 2015 Share Posted June 24, 2015 they don't work very well.. had one back in farang land and it didn't cool very well.. I even put ice in it.. Waste of money. One of those water fans that blow a mist may be better. but not as good as a proper air con. Hmmmm. You seem to have missed the point. They only work with cold water ie if you put ice in the water, or use the supplied cool pad. I forgot to add that mine works fine, but a pain having to fill with ice all the time. Link to comment Share on other sites More sharing options...
iamariva1957 Posted July 1, 2015 Share Posted July 1, 2015 Yes they work for the most part. But only about 1/4 of an A/C unit. Also they have a problem if things are very humid. But good enough to cool a room for say sleeping (as your body temp goes down while asleep) or reading, but for a dinner party.... not really. no not good for a sleeping room....it get too wet, fungus will grow everywhere. But good say barbecue outside, you get the fresh cool wind from it. In that case... buy a fan... a 5-bladed one like for a shop floor. Link to comment Share on other sites More sharing options...
1BADDAT Posted July 2, 2015 Share Posted July 2, 2015 half price of small air con but about 1/4 the efficency Why bother posting numbers that are irrelevant? The price can vary greatly depending on the size and the OP can easily research the cost when he is there to shop for them. 1/4 the efficiency of what? BTU/KW? The efficiency of the evaporate cooler is largely dependent on humidity and the temperature of the air and the water. Link to comment Share on other sites More sharing options...
steven100 Posted July 2, 2015 Share Posted July 2, 2015 They work great -- in Phoenix, Arizona. A friend of mine who lives in the Simpson desert said it works well ...... Link to comment Share on other sites More sharing options...
thaibeachlovers Posted July 2, 2015 Share Posted July 2, 2015 Yes they work for the most part. But only about 1/4 of an A/C unit. Also they have a problem if things are very humid. But good enough to cool a room for say sleeping (as your body temp goes down while asleep) or reading, but for a dinner party.... not really. no not good for a sleeping room....it get too wet, fungus will grow everywhere. But good say barbecue outside, you get the fresh cool wind from it. In that case... buy a fan... a 5-bladed one like for a shop floor. A fan is useless when the air gets so hot it's like being in a fan oven using one. Link to comment Share on other sites More sharing options...
George Harmony Posted February 20, 2016 Share Posted February 20, 2016 Interesting topic. Sorry,i did not read this before and i strarted a similar topic in isaaan forum. If i understand well, ice or cold water added to a swamp or evap cooler can cool a room. How about if im able to circulate groundwater to such a machine. Besides i already have reasonable results vy passive cooling due to the design of my small non-ac house i want to cool my living room only in case its very very hot and only during the day, ofcourse with no ac causr i live offgrid with a small solar system. Any tips are welcome Link to comment Share on other sites More sharing options...
kannot Posted February 20, 2016 Share Posted February 20, 2016 are useless Link to comment Share on other sites More sharing options...
jerojero Posted February 20, 2016 Share Posted February 20, 2016 They suck, the last thing you need in a hot and humid room is more moisture in the air... Same goes for the misting fans. Even with cold water feed, the room humidity simply increases and doesn't feel any cooler. Link to comment Share on other sites More sharing options...
George Harmony Posted February 20, 2016 Share Posted February 20, 2016 (edited) Ok thanks for the replies. How about such a setup with circulation of cold(er)water in copper pipe but a window version. Is such a setup also depending on the humidity?? Edited February 20, 2016 by George Harmony Link to comment Share on other sites More sharing options...
jerojero Posted February 20, 2016 Share Posted February 20, 2016 Yes they work for the most part. But only about 1/4 of an A/C unit. Also they have a problem if things are very humid. But good enough to cool a room for say sleeping (as your body temp goes down while asleep) or reading, but for a dinner party.... not really. no not good for a sleeping room....it get too wet, fungus will grow everywhere. But good say barbecue outside, you get the fresh cool wind from it. In that case... buy a fan... a 5-bladed one like for a shop floor. A fan is useless when the air gets so hot it's like being in a fan oven using one.... Not exactly. There always is an evaporative cooling effect of moving air across the body's skin. Enhanced by moisture (sweat) on skin surface. But the closer the ambient air temp is to the human body, 37C, the less cooling effect. More sweat offsets this somewhat as the body tries to prevent overheating. Moving air across skin creates the cooling. Link to comment Share on other sites More sharing options...
jerojero Posted February 20, 2016 Share Posted February 20, 2016 Ok thanks for the replies. How about such a setup with circulation of cold(er)water in copper pipe but a window version. Is such a setup also depending on the humidity?? .. This is a primitive home-made attempt at AC.. .trying to replicate exactly what AC unit does, which is transfer cold off the surface of the copper tubes to the air as it moves across the tubes. However there is not enough surface area of bare tubes compared to large air movement from such a big fan. Wonder why AC units have thousands of thin metal "fins" attached to the coolant tubing? It massively expands the tubes' surface area. Same principle is used in car radiators to discharge heat generated from the operation of the internal combination engine. Link to comment Share on other sites More sharing options...
George Harmony Posted February 20, 2016 Share Posted February 20, 2016 (edited) Can this invention also simulate ac?? Very easycas DIY. The invention won first place in the student category of the Biomimicry Global Design Challenge (BGDC), an annual competition focused on "addressing critical sustainability issues with nature-inspired solutions." Youtube: As you can see in the vid cold air is directed to the fridge. Can it also be blown to inside room? And, will this simulate Aircon??? They claim to reach temp of 5Celcius. See also http://www.mnn.com/green-tech/research-innovations/blogs/new-refrigerator-cools-food-without-electricity Edited February 20, 2016 by George Harmony Link to comment Share on other sites More sharing options...
topeye Posted August 18, 2016 Share Posted August 18, 2016 One important thing still not mentioned. Its a great difference if air just circulate in the room or if there is some exchange! Link to comment Share on other sites More sharing options...
kannot Posted August 18, 2016 Share Posted August 18, 2016 1 hour ago, topeye said: One important thing still not mentioned. Its a great difference if air just circulate in the room or if there is some exchange! what a gawd awful mess, I expect the mould growth on the walls would be interesting. Link to comment Share on other sites More sharing options...
sturdyd Posted August 19, 2016 Share Posted August 19, 2016 On 4/8/2015 at 8:46 AM, mesquite said: They work great -- in Phoenix, Arizona. Except in those few weeks in July-August when the humidity goes all the way up to like 50%, which is still far lower than Thailand. In other words, no! Evaporative (swamp) coolers are worthless here (and yet the subject continually pops up). Here's further info: http://energy.gov/energysaver/evaporative-coolers Link to comment Share on other sites More sharing options...
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