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Creating a solar heating unit on the cheap | 23 comments (23 topical, editorial)

Re: Creating a solar heating unit on the cheap (3.00 / 0) (#18)
by freeEnergy4me on Fri Apr 4th, 2008 at 10:33:29 PM MST
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The reason for using something else is find a substance that holds the heat. Insulation I guess would be a good idea. But if you had a substance that took long to heat, it would take longer to cool as well.

So even tho water is easy to heat, it also cools just as quickly.

The concentrators they use in Nevada use oil as do...cars to cool engines. Because they absorb more heat and don't change state like water.

I guess I'm thinking out loud. How do you capture heat? If you've taken a hot bath, you know how short heated water stays warm. Just thoughts. After all, if you can simply re-design your house to take in direct sunlight then you don't need any additioinal help warming your home. It's after the sun goes down...

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Re: Creating a solar heating unit on the cheap (3.00 / 0) (#20)
by jonas302 on Sat Apr 5th, 2008 at 09:29:51 AM MST
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Maybe if you had some black bricks behind your cans they would store some heat to
I had thought about checking into the 3or 4 inch aluminum pipe they use to exaust from the water heater for solar collecter

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Re: Creating a solar heating unit on the cheap (3.00 / 0) (#21)
by Chagrin on Sat Apr 5th, 2008 at 11:40:34 AM MST
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Concentrators in Nevada use oil because they're not storing the heat - they're transferring it. They also don't have to worry about steam. Engines don't use oil for cooling. They might cool the oil, sure, but the primary cooling system is the (water/glycol) radiator.

[ Parent ]

Creating a solar heating unit on the cheap | 23 comments (23 topical, 0 editorial)

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