Seeing that my homemade air conditioner was not powerful enough to cool down the living room (it only had 2000 of the 14’000 required BTU/H), I took the copper coil off the fan, and turned it into a water cooled bed for the ferrets 
The bed holds a comfortable 16-18 degrees Celsius.
This is nice for the little weasels, seeing they can’t sweat to get cooler.
I made a sort of Homemade air conditioner today.
It’s based of a powerful fan (150 w, sounds like a large aircraft) and 5 meters of copper tubing in a coil mounted on the fan. Cold water (around 10 degrees Celsius) goes trough the copper tube at around 2 liters per minute.
I also added strips of 0,2 mm thick copper plating to help disperse the heat.
I measured it’s cooling capacity today at around 2000 BTU/H, but I’m going to reserve judgment until tomorrow (it will be around 30 degrees Celsius, just like today).
Everything comes at a price. For example, my new computer though being able to run Crysis pretty smooth, sounds like a small hovercraft. And as requested by Stacy I decided to move the computer out into the hallway.
Step 1: Drill a large hole in the wall between the living room and the hallway, the hole is up under the roof, next to the projector screen
Step 2: Order one 10 meter long DVI cable, 2 PS2 cables, 3x audio cables and wait around 2 weeks 
Step 3: Extend the hole to so that the DVI connector fits trough it
Step 4: Put a junction box over the hole and run all the cables trough it
Step 5: Put the PC in the hallway on top of your weapon safe and connect all the cables, then close up the junction boxes
(Click for larger view)
Step 6: Enjoy your very tidy desk (that shuttle computer on my desk is my trusty server hosting aakretech.org, etc..)
(Click for larger view)
The result is really amazing, and the living room is much more quiet and pleasant. And when I walk into the hallway and is hit by that monstrous sound I find it hard to believe I could sit 50 cm from it for hours on end
Last night I transformed 2 wooden boards into a set of ferret shelves. As a result Nemi will no longer be able to fall down when trying to look out the window, and the couch will always be at least 15cm away from the wall, which means she wont bother digging at it (don’t ask why).
Before:
During construction:
After:
Building inspector gives thumbs up:
