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Old 06-30-2011, 04:14 PM
 
2,996 posts, read 4,916,897 times
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I live in Florida and want to build a 3'x3' sealed box with a 100' roll of 3/4" i.d. black plastic coiled up in it. My aim is to provide enough hot water for a 5 minute shower ; I live alone and like cooler showers at around 90 f. water temp. Until now, ive been using my 40 gal. electric water heater .

Is anyone using black plastic pipe to heat domestic hot water or swimming pool with good sucess ? How long does it take to heat up the water in direct sunlight, diffused sunlight, and no sunlight and what kind of water temps. are you getting out of it ?

Thanks.
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Old 06-30-2011, 04:39 PM
Status: "0-0-2 start!" (set 13 days ago)
 
Location: The beautiful Rogue Valley, Oregon
7,287 posts, read 15,339,626 times
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check the melting temp of the piping - our system can hit boiling (we have 2 Heliodyne 4'x8' flat plate collectors).

Here is a page with a bunch of DIY solar thermal:

Solar Water Heating Projects and Plans
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Old 06-30-2011, 05:12 PM
 
Location: North Western NJ
6,591 posts, read 20,793,656 times
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i dont know about for house use, but we have a system like that for the pool... the pump takes the water through a seres of black pipes that are laid out on the top of our shed...
but it actually often gets too hot so we had to put a rgulator on it to keep it around 80 lol and were in ct...

so it could absolutly work
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Old 07-01-2011, 09:58 AM
 
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Quote:
Originally Posted by PNW-type-gal View Post
check the melting temp of the piping - our system can hit boiling (we have 2 Heliodyne 4'x8' flat plate collectors).

Here is a page with a bunch of DIY solar thermal:

Solar Water Heating Projects and Plans
Wow...thanks for that site. Very comprehensive.
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Old 07-01-2011, 10:00 AM
 
2,996 posts, read 4,916,897 times
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Quote:
Originally Posted by foxywench View Post
i dont know about for house use, but we have a system like that for the pool... the pump takes the water through a seres of black pipes that are laid out on the top of our shed...
but it actually often gets too hot so we had to put a rgulator on it to keep it around 80 lol and were in ct...

so it could absolutly work
Yikes...I think i need to check the max. temp. this black plastic pipe can stand .........and possibly go with a roll of Copper tubing instead.
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Old 07-01-2011, 10:40 AM
 
48,516 posts, read 83,890,268 times
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We use to use a plastic barrel. mounted in a rack above our heads as a shower at our camp we used even druig the winter on sunny texas days.We actually could get quite a fewer showers out of it;no problem. Pretty simple and lasted for years. Nothing new really.
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Old 07-01-2011, 11:18 AM
Status: "0-0-2 start!" (set 13 days ago)
 
Location: The beautiful Rogue Valley, Oregon
7,287 posts, read 15,339,626 times
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Quote:
Originally Posted by 007.5 View Post
Yikes...I think i need to check the max. temp. this black plastic pipe can stand .........and possibly go with a roll of Copper tubing instead.
This summer is supposed to be the year we put the greenhouse in (although the way projects are stacking up, that looks questionable). We found some old "hot air" solar system components and plan to use the glass-topped insulated metal boxes (each 3'x4'), run copper tubing in them and use them to heat multiple 55 gal water drums in the greenhouse, under the vegetable beds, for winter heating.
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Old 07-01-2011, 01:25 PM
 
2,996 posts, read 4,916,897 times
Reputation: 1793
Quote:
Originally Posted by PNW-type-gal View Post
This summer is supposed to be the year we put the greenhouse in (although the way projects are stacking up, that looks questionable). We found some old "hot air" solar system components and plan to use the glass-topped insulated metal boxes (each 3'x4'), run copper tubing in them and use them to heat multiple 55 gal water drums in the greenhouse, under the vegetable beds, for winter heating.
Once you get that done, I would really appreciate seeing some pictures and hearing how well it operates for you. Please PM me when youre all done with the project. Many thanks.
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