Jump to content

Natural cooling ideas.


Recommended Posts

I want minimise use, and try and achieve cooling through more natural methods.

 

Is this the correct forum.

 

I'm in the final stages of building a 2 bed condo, I have aircon unit in ceiling and also looking at a Mr Ken helicopter fan in the main room. Any ideas or other measures that can help me reduce the need for aircon. Including ideas and products that may help.

 

Thanks, Richard

  • Haha 1
Link to post
Share on other sites
  • Replies 91
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Popular Posts

There's ALWAYS gonna be a few guys that tell you their house is cool as a cucumber without A/C.   There are ways, with some or a lot of effort/money  that a house here can be kept cooler .(a

Yes. Maybe. Yes. No.   more important is to keep the sun off the walls as long as possible.   I have a minimum of 2.5 metres overhang and low-E glass    

My house does not need air-con (yes, really). I designed it with the basics of all houses built in the tropics all over the world before air-con was invented.   1. Very large volume roof wit

Posted Images

The main issue is the humidity.  There are various methods of passive ventilation that will leave some feeling just fine.  But in this humidity,  AC is a must - for me anyway.  

 

Edit:  You say you have a ceiling AC.  Depending on where located you should be able to keep the whole condo comfortable by placing ceiling fans in the bedrooms (or wherever the AC is not) and leaving the doors open to circulate.  My 11kBTU AC is in the bedroom but I have shutters and a door to open to the main living area and along with two ceiling fans it will keep 60m2 or so very comfortable.

Edited by bankruatsteve
  • Thanks 1
Link to post
Share on other sites
1 hour ago, bankruatsteve said:

The main issue is the humidity.  There are various methods of passive ventilation that will leave some feeling just fine.  But in this humidity,  AC is a must - for me anyway.  

 

Edit:  You say you have a ceiling AC.  Depending on where located you should be able to keep the whole condo comfortable by placing ceiling fans in the bedrooms (or wherever the AC is not) and leaving the doors open to circulate.  My 11kBTU AC is in the bedroom but I have shutters and a door to open to the main living area and along with two ceiling fans it will keep 60m2 or so very comfortable.

BK Steve. Excellent teply in a great thread fir me, just was looking for this topic and there it us brand new and up frint. Thanks to OP.

I am just gwtting a house built. I asked for a 1m crawl space underneath, with no wall around....thinking it will allow considerable airflow under the house and help a lot with coolibg and dehumidification.

The bulider has a surcharge to do so as pillars need to be strong enough to support house with out soil underneath to help.

My question to the forum, does anyone have experience raising their hone and keeping it open...does it assist with cooling and dehumidification or should expect the same outcone?

Cheers in advance for on topix replies.

 

 I know OP has a condo but topic is cooling so sorry if flipping to house feels like hijackng, lol. But still on topic re cooling, imo

 

Link to post
Share on other sites

Ensure the roof space is vented properly, otherwise it's a heat trap. Either double cavity walls, or as other posters have said, wide eaves to keep the sun off. Thickest insulation in the roof cavity.

Link to post
Share on other sites

The problem is that over time, even though you may feel it's cool enough without AC daily usage, your walls will be subject to mold growth, especially in rainy season...and once that begins, it's virtually impossible to get rid of. Bite the bullet and run the air to dehunidify if nothing else...

Link to post
Share on other sites

IMO for a condo (apartment) keeping the sun off the walls is helpful, if you're the top floor condo, roof insulation is also very helpful, but after than, other than A/C there's not much else you can do.

Keep in mind ceiling fans do not cool, they just move air, it's the contact of this moving air onto skin that has a cooling effect via evaporation of sweet. The roof watering (evaporative) cooling system works in a similiar way.

For a house I'm not in favour of the elevated style, houses built directly on the ground benefit from the ambient temperature of the ground, if it's 43c outside in the sun and the ground temp is 26c then the floor indoors will be 26c. Thick roof insulation, and full shading of the walls will help to keep the house close to the ground temp.

Further to that a matrix/s of 100mm pipe work in the ground under the slab, prior to building the house may have a small fan connected to the start/s with the end/s being outlet/s into the house, thus helping to keep the house at ground temp.

Of course in tropical humid climates refrigerated A/C is the only effective way to reduce humidity.

Link to post
Share on other sites
8 minutes ago, BritManToo said:

29.7c (70%) in my living room now, windows and doors open, perfectly comfortable.

I was at 29C/84% but I was NOT comfortable and turned on the AC.  Everyone has a different comfort level.  Just sayin.

  • Like 1
Link to post
Share on other sites

We have walls of glass around the bottom floor of our villa. It gets the morning sun and heats up the room. We had good quality window tinting installed and it made a huge difference. I would run the Ac for a while each morning to cool it down again while the sun was on it and close all the curtains to block the sun out. Now we no longer need to do that. Worked well for us.

  • Like 1
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    No registered users viewing this page.


×
×
  • Create New...