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**Stengapsept** · 06-28-2009, 06:09 AM

I'm sitting in my room melting at the moment, ain't got a bean to spend as were moving soon so wondered how to make it cooler, then remember seeing a post on here a while ago about home made aircon. Copper pipe is coiled on the front and rear of a fan and iced water is pumped round the piping to cool the airflow. Seems theres a few comments on how good it works and I got all the materials, most ex fishtank stuff, pumps and hose and some copper brake line so would it be worththe effort

That is a nice way to cool, but only works in dry areas.

Is it dry where you are? The drier the better. If it is humid, you will need some kind of mechanical cooling and a heat exchanger. Air conditioners move enthalpy (heat AND humidity) from a space. Passive evaporative cooling, like what you suggest, only works well without the humidity part. In fact, it will ultimately raise the humidity in your space.

BTW, your image link does not work.

06-28-2009, 06:09 AM	#2
Stengapsept Join Date Oct 2005 Posts 651 Senior Member	I'm sitting in my room melting at the moment, ain't got a bean to spend as were moving soon so wondered how to make it cooler, then remember seeing a post on here a while ago about home made aircon. Copper pipe is coiled on the front and rear of a fan and iced water is pumped round the piping to cool the airflow. Seems theres a few comments on how good it works and I got all the materials, most ex fishtank stuff, pumps and hose and some copper brake line so would it be worththe effort That is a nice way to cool, but only works in dry areas. Is it dry where you are? The drier the better. If it is humid, you will need some kind of mechanical cooling and a heat exchanger. Air conditioners move enthalpy (heat AND humidity) from a space. Passive evaporative cooling, like what you suggest, only works well without the humidity part. In fact, it will ultimately raise the humidity in your space. BTW, your image link does not work.
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