Cooling a 200 sqm warehouse? Estimated costs? Any suggestions from experience?

[creative1000]

We're considering renting a 10x20m concrete box with metal roof with insulation attached underneath, 6 meters tall. The walls are solid without ventilation holes, only the front door which can close. We'd like to maintain a comfortable temperature year round 9-5pm (lke 25-27'C) as this will be a social meeting place where people can have a conversation without yelling over any crazy noise.

 

The 2 ideas we have now, is

 

1. Put fans everywhere (ceiling + floor) + use an industrial swamp cooler and use ice blocks from a local ice factory?

2. Put fans everywhere (ceiling + floor) + install 6-8 AC inverter units around the warehouse walls

 

 

Any idea of the effectiveness or cost of either idea?

 

Would #1 be too loud? Could this be setup outside, and push the air inside through a vent? Would this even work to reduce the temperature during the hot months?

 

Would #2 be insanely expensive to run every month? Ballpark cost, Would this be like 6000-10,000baht per month or more like 60,000-100,000thb per month to run? 

 

Any other suggestions, ideas, or brainstorms?

Thanks in advance.

Edited December 23, 2023 by creative1000

[sometimewoodworker]

3 hours ago, creative1000 said:

1. Put fans everywhere (ceiling + floor) + use an industrial swamp cooler and use ice blocks from a local ice factory?

Absolutely will not work. Thailand has a humidity that is virtually never under 50% and never much under 80% in the rainy season, so swamp coolers will just make everything hot and humidity of 100%

 

3 hours ago, creative1000 said:

2. Put fans everywhere (ceiling + floor) + install 6-8 AC inverter units around the warehouse walls

Step 1) insulate

step 2) double the insulation you first thought was too much 

idear 2. Is effective but you over estimate the numbers of AC units

 

My Workshop is about 8 x 12 meters ceiling hight is 4~7 meters, I have 3 84” fans + 1 triple motor fan, poor roof insulation, but with 1 AC 36,000 BTU I can see a temperature of 22C with an outside temperature of 38C

 

Spend money on big fans they can be virtually silent, mine were about ฿13,000 each AFIR, it’s an expense I do not regret.

Buy cheap fans and on the slowest speed they are noisy, turn them up and and they are really loud.

 

[creative1000]

16 hours ago, sometimewoodworker said:

My Workshop is about 8 x 12 meters ceiling hight is 4~7 meters, I have 3 84” fans + 1 triple motor fan, poor roof insulation, but with 1 AC 36,000 BTU I can see a temperature of 22C with an outside temperature of 38C

 

Spend money on big fans they can be virtually silent, mine were about ฿13,000 each AFIR, it’s an expense I do not regret.

Thank you, just the type of answer I was looking for. Appreciate all the details and photo!
 

Did you buy directly from a warehouse fan store or cooling specialist, or are these available at thai watsadu / global? 

[brianthainess]

20 hours ago, creative1000 said:

with metal roof with insulation attached underneath,

How thick is the insulation? problem is you are renting so any money you put into the building is lost, the roof IMO is the biggest source of heat adding an extra 2" of insulation would improve that immensely. Roof vents can work but can sometimes need a bit of oil otherwise they squeak a rattle,

 

if you put vents in a wall try to find a north facing one, less sun. .

 

 

[sometimewoodworker]

48 minutes ago, creative1000 said:

Did you buy directly from a warehouse fan store or cooling specialist, or are these available at thai watsadu / global? 

I bought the fans from the manufacturer’s shop MrKen in the CDC in Bangkok I got a reasonable discount as we bought about 13. You can find some of them in Boonthavorn Udon Thani 

 These are some of the most iconic fans they are mostly silent and get used in famous places. We just visited Singapore and spotted them in the Raffles Hotel Long Bar one version is the electric Punkah possibly a unique fan

 

I actually fitted them all myself as it isn’t rocket science just sensible mechanics.

 

 

 

Edited December 24, 2023 by sometimewoodworker

[brianthainess]

18 minutes ago, sometimewoodworker said:

 

 

I actually fitted them all myself as it isn’t rocket science just sensible mechanics.

 

 

 

I saw a very similar type of fan fitted across the ceiling, pointing down, that was in a pub in Airlie beach. OZland.  worked well it had rectangle fans, like an Indian "punker wallah" would use. You could always employ one.