BTU sizes

[poppysdad]

Looking for an air conditioner for small bedroom of 130 sq feet. When I look online at btu recommendations they say that 6000 more than adequate but the smallest unit I can buy locally seems to be 9000 which is 50% above recommended which I’m quite happy to have. However the shop I’ve been to says I need 12000 for that size room when I ask why he says Thailand always need more. So suggestions please, what size does anyone suggest. 

[Crossy]

130sq ft = about 14 m².

 

Standard Thai guesstimate is 600-700 BTU per m², so 9,000-10,000 sounds about right unless you need arctic conditions for your pet penguins or the room has a heavy heat gain from sun on the walls, windows and roof.

 

A 12,000 BTU inverter type wouldn't be outside the "fairly sensible" range.

 

Try another shop ???? 

 

 

[Encid]

You could try out the Carrier Thailand online BTU calculator here.

[stubuzz]

I have a 9000btu inverter in a 18m2 bedroom and it works well.

[Mickeymaus]

From my experience 9000 BTU should be more than enough. For non-inverters - an oversized unit will not take out much moisture from the air because the compressor runs always only a short time. On the other hand an undersized unit could make the air very try because the compressor runs long and so more water will condense at the cooling fins. 

[poppysdad]

Encid. Had already tried the Carrier calculator which recommended 9600 btu. 
 

But thanks everyone for your replies, I’m going to stick with a 9000 btu model despite what the shop says. 

[KhunLA]

9000 BTU sounds more than enough for 12m²

 

We have 13k in bedroom (23m²), overkill, and a 24k in main room (83m²), which includes the kitchen.  More than adequate, and damn chilly at times, though well build house.

 

Mitz rep said it wouldn't be enough ????