Time To Install Aircon

[happyaussie]

I live near Loei can someone advise a decent airon company or should I simply buy and have installed. The room is 5m x 12m with 8m ceilings. I heard something about BTU's??? What do you recommend and hopefully where should I buy.

[Hobc]

Around 60m2 20,000 BTU in Aus we call them KWS,the best and most reliable aircons I've fitted are panasonic as they have best electronics also if you pay a little extra get an inverter as they run on DC and don't stop like a fridge just slow down saving 30% on power and wear and tear like a taxi, find a good large retail outlet and get the stores preferred installer, should be around 3500bt inc of power up.

If you buy too small they work too hard however depends on your situation.Good luck

[JoeInSurin]

You can find BTU charts on the internet. Just Google it. These charts are for properly insulated homes with double pane windows in cooler climates which is usually not the case here. I have a 18,000 BTU unit in a 45 square meter room at my home in the village and it doesn't have a chance at cooling the room. I am going to have to add another unit to cool it properly. If you don't have insulation I would think you would need two 18,000 BTU units.

[ballbreaker]

You have a very large room and it will need something in the 36000 to 48000 Btu range in my opinion.

I like the idea of two units so on cooler days you can run only one unit. For a room needing 36000 Btu to cool you could use two 18000 Btu units or single 36000 Btu unit.

Inverter type mentioned above is also good idea but will cost more so if you plan to stay long time its worth the investment.

Go with a good name brand even if means paying a little more because its worth the investment. I like Mitsubishi Electric, Daikin and Panasonic units but I'm sure others prefer something else.

Dealers I talked to used one of three load factors (600, 700 or 800) to size unit. Factor is chosen based on wall construction, number of windows and doors, number of exterior walls, number of exterior walls getting sun and rooms function (lots of people or heat generating equipment). They then multiple the room size in square meters times factor (example; 60 sqm X 600 = 36000 Btu).

[TexasRanger]

We got ours from a normal electrical store and they fitted them very professionally. Highly recommend Panasonic, they are very quiet and work a treat.

[barryofthailand]

The best a/c's in Thailand are Daikin. Sharp comes in second. A 12x12 meter room takes a 13,000 BTU a/c. and can be had for about 18,000 Baht.

The quality of a/c's are judged by how quiet they are.

Barry

[JoeInSurin]

The best a/c's in Thailand are Daikin. Sharp comes in second. A 12x12 meter room takes a 13,000 BTU a/c. and can be had for about 18,000 Baht.

The quality of a/c's are judged by how quiet they are.

Barry

Hi Barry. I hope all is well. Did you mean a 12 X 12 foot room. A 13,000 BTU a/c is only rated to cool a 500 sq / foot room with ceiling insulation. 12 x 12 meter is 1500 sq / foot. you would need three 13,000 BTU a/c's to cool an area like that.

[barryofthailand]

Hi Joe,

Yes I meant a 12X12 Foot room. This is what I have.

Barry

[torrenova]

I went through the aircon learning process a while ago and basically came to the conclusion that like laptops, you could forever spend that little bit more and get a little bit better performance. I've had Daikin, both good and bad and I reckon it is as much to do with the quality of installation as the unit itself.

The last one we picked out was a Samsung. Quiet and fit for purpose. Cheap as well, in a relative sense.

[Hornell]

I agree 100% with Barry of Thailand; I have a 12,000 btu in an 8 x 12 m room, Mitsubishi Heavy Duty, installed 7 years ago, it is still working perfectly and does the job perfectly when I want it to. I have another 12,000 btu in an 8 x 7m bedroom and 9,000 btu coolers in three other rooms 4.x.4/4 x 5m. All work fine. The biggest problem I found was telling the guys installing them to put in the air conditioners that I - repeat I - wanted, not the ones they thought I should have. You don't need to live in a fridge if you don't want to, and if you don''t use the air all that often why go for the big ones?

[JoeInSurin]

I agree 100% with Barry of Thailand; I have a 12,000 btu in an 8 x 12 m room, Mitsubishi Heavy Duty, installed 7 years ago, it is still working perfectly and does the job perfectly when I want it to. I have another 12,000 btu in an 8 x 7m bedroom and 9,000 btu coolers in three other rooms 4.x.4/4 x 5m. All work fine. The biggest problem I found was telling the guys installing them to put in the air conditioners that I - repeat I - wanted, not the ones they thought I should have. You don't need to live in a fridge if you don't want to, and if you don''t use the air all that often why go for the big ones?

Barry has a 13,000 btu in 3.7 meter x 3.7 meter room (12 x 12 feet) not one near as large as yours. I have a top of the line Mitsubishi 18,000 btu unit in my village home in a 500 sq/ft area and it has trouble cooling it in the middle of the day . Look at any btu chart on the internet and all manufacturers will call for a 12,000 btu in a 500 sq/ft area.

[Dave the Dude]

I agree 100% with Barry of Thailand; I have a 12,000 btu in an 8 x 12 m room, Mitsubishi Heavy Duty, installed 7 years ago, it is still working perfectly and does the job perfectly when I want it to. I have another 12,000 btu in an 8 x 7m bedroom and 9,000 btu coolers in three other rooms 4.x.4/4 x 5m. All work fine. The biggest problem I found was telling the guys installing them to put in the air conditioners that I - repeat I - wanted, not the ones they thought I should have. You don't need to live in a fridge if you don't want to, and if you don''t use the air all that often why go for the big ones?

Barry has a 13,000 btu in 3.7 meter x 3.7 meter room (12 x 12 feet) not one near as large as yours. I have a top of the line Mitsubishi 18,000 btu unit in my village home in a 500 sq/ft area and it has trouble cooling it in the middle of the day . Look at any btu chart on the internet and all manufacturers will call for a 12,000 btu in a 500 sq/ft area.

As a qualified heating engineer, I trust this guy

[ballbreaker]

 

Barry has a 13,000 btu in 3.7 meter x 3.7 meter room (12 x 12 feet) not one near as large as yours. I have a top of the line Mitsubishi 18,000 btu unit in my village home in a 500 sq/ft area and it has trouble cooling it in the middle of the day . Look at any btu chart on the internet and all manufacturers will call for a 12,000 btu in a 500 sq/ft area.

You cannot use many of the calculators on internet because they do not ask all the necessary questions to properly size air conditioner for Thailand.

[JoeInSurin]

Barry has a 13,000 btu in 3.7 meter x 3.7 meter room (12 x 12 feet) not one near as large as yours. I have a top of the line Mitsubishi 18,000 btu unit in my village home in a 500 sq/ft area and it has trouble cooling it in the middle of the day . Look at any btu chart on the internet and all manufacturers will call for a 12,000 btu in a 500 sq/ft area.

You cannot use many of the calculators on internet because they do not ask all the necessary questions to properly size air conditioner for Thailand.

Quite a few have different amounts to add for "no insulation", " hot climate", ect.. For most Thai homes you would need to add about 50% more btu than an insulated home in the west.

[Svenn]

Should they be installed up towards the ceiling (because of sinking cold air) or more in the middle of the wall (so you don't waste energy cooling the hottest air up by the ceiling?

[Naam]

i read a lot of "cool, doing the job, working perfectly, mine is the best, etc." but nobody mentions the temperature desired or achieved in absolute ºC or ºF in what room size, details of the room and outside temperature. it all sounds to me like "my piece of string's length is sufficient". get real people and talk facts please

Edited April 12, 2010 by Naam

[torrenova]

i read a lot of "cool, doing the job, working perfectly, mine is the best, etc." but nobody mentions the temperature desired or achieved in absolute ºC or ºF in what room size, details of the room and outside temperature. it all sounds to me like "my piece of string's length is sufficient". get real people and talk facts please

They are still working out how many BTU they need with 2 open doors and half a dozen open windows

[citizen33]

Big C have a special offer at the moment for free installation. Most branches only stock units up to about 18000 BTU, The smaller units mentioned above won't be big enough for this space. The LG units at Big C even come with a free microwave oven during the promotion.

[Naam]

The best a/c's in Thailand are Daikin. Sharp comes in second. A 12x12 meter room takes a 13,000 BTU a/c. and can be had for about 18,000 Baht.

The quality of a/c's are judged by how quiet they are.

Barry

:D

[Naam]

i read a lot of "cool, doing the job, working perfectly, mine is the best, etc." but nobody mentions the temperature desired or achieved in absolute ºC or ºF in what room size, details of the room and outside temperature. it all sounds to me like "my piece of string's length is sufficient". get real people and talk facts please

They are still working out how many BTU they need with 2 open doors and half a dozen open windows

there was a time when i got annoyed reading all kind of rubbish from people who have no bloody idea. nowadays i read their technical "expertise" for fun.

[torrenova]

there was a time when i got annoyed reading all kind of rubbish from people who have no bloody idea. nowadays i read their technical "expertise" for fun.

I don't know Naam. On certain days when the moon is high in the sky you can still be found rising occasionally to the bait

[bow]

8 meter ceiling ? What sort of room are we talking about ? Our aircon specialists might need more information to be able to give correct advise.

Remember that too big is better than too small.

[happyaussie]

8 meter ceiling ? What sort of room are we talking about ? Our aircon specialists might need more information to be able to give correct advise.

Remember that too big is better than too small.

The room in question has 8m high vaulted ceiling. I visited one shop who suggested I require approx 35,000btu. He gave me a quote for a 38,000btu Carrier unit. Or a cheaper brand (can't remember the brand) for 35,000btu. Installed.

[bow]

8 meter ceiling ? What sort of room are we talking about ? Our aircon specialists might need more information to be able to give correct advise.

Remember that too big is better than too small.

The room in question has 8m high vaulted ceiling. I visited one shop who suggested I require approx 35,000btu. He gave me a quote for a 38,000btu Carrier unit. Or a cheaper brand (can't remember the brand) for 35,000btu. Installed.

Two or three people have suggested two units. That might be a good idea.

[AA1]

I noticed some names I recognise from Surin so hope you can help me.

In the present heatwave, my wife needless to say is suffering from heat especially at night & so wants an aircom in our bedroom. Being a farang, I am happy with our wall fan!!

We live near Sangkha (about 50 km. from Surin). Do any of you know a good electrical shop in Surin who supply at reasonable price, fit aircom well and provide a back-up service if needed!!? A friend mentioned that there was one near Surin bus station but did not know the name. Our bedroom is only about 16m2 so not large. Any suggestions and/or advise would be gratefully received. Thanks.

[dmax]

I noticed some names I recognise from Surin so hope you can help me.

In the present heatwave, my wife needless to say is suffering from heat especially at night & so wants an aircom in our bedroom. Being a farang, I am happy with our wall fan!!

We live near Sangkha (about 50 km. from Surin). Do any of you know a good electrical shop in Surin who supply at reasonable price, fit aircom well and provide a back-up service if needed!!? A friend mentioned that there was one near Surin bus station but did not know the name. Our bedroom is only about 16m2 so not large. Any suggestions and/or advise would be gratefully received. Thanks.

home pro

[jombom]

On the coast here, I tend to use a ''Rule of thumb'' of 2 btu per cubic ft.

In the OP's case this would give me 28,000 Btu, assuming an average ceiling height about 6M.

On the coast, the temp rarely exceeds 35C, whereas in Isaan I understand 38C is not unusual.

So perhaps an Isaan factor would be 2.5 Btu per cubic ft. This would give a figure of 35,000 Btu, which has been suggested. IMHO it would be better to install more than one unit, for many reasons including electrical wiring.

[ballbreaker]

I noticed some names I recognise from Surin so hope you can help me.

In the present heatwave, my wife needless to say is suffering from heat especially at night & so wants an aircom in our bedroom. Being a farang, I am happy with our wall fan!!

We live near Sangkha (about 50 km. from Surin). Do any of you know a good electrical shop in Surin who supply at reasonable price, fit aircom well and provide a back-up service if needed!!? A friend mentioned that there was one near Surin bus station but did not know the name. Our bedroom is only about 16m2 so not large. Any suggestions and/or advise would be gratefully received. Thanks.

Don't know about shop location but 12,000 BTU will be okay. Don't go any bigger.

Girl friend put a Samsung in her place and its virtually noiseless once set temperature is reached. I have Mitsubishi Electric which is very quiet but it cannot match Samsung unit once set temp is reached.