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Friday, April 11, 2008

Pop Can Solar Furnace - Hot Hot HOT!

It's beautiful, sunny spring day in Halifax. It's 9C outside, which is kind of nice, but it's been consistently sunny all day... That means the pop can solar furnace that I built is pumping out the heat. This morning, the top of the cans were too hot to touch comfortably, so I thought I would put my thermometer up there.

So this little guy maxed out above 52C! Time to ramp it up... I put a meat thermometer up there, with the probe touching the surface of the cans. Here's the result:

Yes, that reads just above 82C or about 185F!

This panel is tilted at a shallow angle, fixed in place in one of the windows of the solarium. It's completely passive, meaning that I don't have a fan or anything moving the air across the hot surface. It certainly adds to the heating of the room, but a solar driven fan would obviously be an improvement. Baked turkey anyone?

Needless to say, without a vent to be able to use this heat in a thermal siphon cooling setup, I will likely have to take the panel down or cover it for the summer. Regardless, this should mean my winter electric heating season is over. The whole house is a balmy 20 at the moment with no heat on.

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