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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) (#12)
by ghurd on Fri Apr 4th, 2008 at 10:41:17 AM MST
(User Info)

I keep getting the feeling you are confusing how fast something absorbs heat, with extra BTUs.
If it stays warm longer, it takes longer to heat up.
Just because it stays warm longer doesn't mean it has more heat from the BTUs that were available.
If it needs to stay warm longer, insulate it.
G-

[ Parent ]


Re: Creating a solar heating unit on the cheap (3.00 / 0) (#19)
by freeEnergy4me on Fri Apr 4th, 2008 at 10:38:30 PM MST
(User Info)

No, I just want something to "keep the heat". Water is awesome as long as you keep heating it. But it takes many gallons of water to "keep the heat" where I'm guessing oil would stay warming longer, not more BTUs, just less BTUs right away. In other words, the water would be warm for a short period and give off it's heat right away when oil would stay warmer longer, distributing the same BTUs over a longer period.

If only I could buy those blocks they use to coat the Space Shuttle, lol. They absorb the heat incredibly well!

What is the best capacitor of solar heat? That is my quest!

[ Parent ]



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

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