The Black Beauty
As the summer progressed, I felt like I needed to improve my initial design. Luckily enough the science department had just thrown away an old freeze drying machine which had a perfect radiator. A few minutes crouched by the dumpster with some hand tools, some minor adjustments, and the Black Beauty was born.
Pete’s Homemade Air Conditioner
Credit goes out to Pete H. in sunny England for this great build. This version of the homemade air conditioner removes the need to drain water outside by using an aquarium pump, and sits on a rotating base.
Spencer’s Homemade Air Conditioner
Spencer from Ohio made this incredible build using some good old american muscle.
Anonymous’ Homemade Air Conditioner
This version of the homemade air conditioner implements two improvements, a flow valve and a condensation collector.
Technical Notes
Several people have asked me if I have managed to quantify the performance of this system. I ran a few quick numbers – accuracy is not going to be great due to measurement error. In terms of rough numbers though, I’m pretty happy.
Water Supply Improvements
I decided to modify the system to run off a garden hose, for increased reliability and to prevent late night stumbles from flooding my room.
Heat Exchanger Improvements
The major factor affecting the efficiency of the air conditioner is the heat exchanger.
Geoff’s Original Homemade Air Conditioner
My very first attempt at homemade air conditioning, preserved for posterity. If you’re planning on building your own, take a look at my final design, the Black Beauty.








