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Old 10-17-2008, 03:24 PM   #31
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Originally Posted by MdangermouseM View Post
ok, i saw those. i'm still leaning toward the simplicity of the pic in post #8. it gets hot pulled in when in use and keeps elec. as backup if cloudy and solar is not enough. either way, i believe it WILL cut my overall costs, be easy and fun to make and setup. still have the two questions.... permit needed? (most likely) and 180 degree copper fittings? are they out there? kinda like a horseshoe?
and what about burying those lines while it's open and i'm building? i can drop them straight down into the well pit, (won't freeze there either!) then underground into the new crawl space and up. but i need to be able to clean and drain them. hmmmm...

DM
Use soft copper and get a bender. No fittings at all except at the end.

If you bury it make sure it is insulated well. Don't want it cooling down and it will cool down fast.

Of course you know that on cold days you will actually increase your energy use, right? I guess I already said that.

I feel like a dog chasing his tail.

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Old 10-17-2008, 03:31 PM   #32
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Of course you know that on cold days you will actually increase your energy use, right?
how so? please elaborate. and will a bender give me tight 180 turns?

DM
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Old 10-17-2008, 03:56 PM   #33
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and will a bender give me tight 180 turns
It will if it's a 180+* bender...
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Old 10-17-2008, 05:10 PM   #34
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how so? please elaborate. and will a bender give me tight 180 turns?

DM
Depends on what kind of a bender you get.

Ground temperature is about 55 degrees.

You are going to take that 55 degree water and put into a 45 degree environment. This will drop the temperature of the water to 45 degrees. You have lost 10 degrees of heat.

That is how your system is set up to work.

No saving at all.
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Old 10-17-2008, 05:22 PM   #35
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i'm sorry, what you say makes no sense. i open the insulated lid for the morning sun to heat the pipes.... how does that make for 45 degrees?

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Old 10-17-2008, 05:28 PM   #36
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i'm sorry, what you say makes no sense. i open the insulated lid for the morning sun to heat the pipes.... how does that make for 45 degrees?
How about a few dark cloudy days?
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Old 10-17-2008, 06:01 PM   #37
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i'm sorry, what you say makes no sense. i open the insulated lid for the morning sun to heat the pipes.... how does that make for 45 degrees?

DM
I don't seem to be able to explain it to you so I will have to move on.
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Old 10-17-2008, 06:32 PM   #38
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gp, dark cloudy days is why i'm leaving it electric too. and freezing is why i still have not decided to leave it hooked up in winter. if i can get help figuring out how to, or simply figure it out myself, i will. i already pay next to nothing to heat, perhaps i can pipe some of that to the box and my well pit? hmmmmm
Marvin, feel free to comment or not, this is a free forum, and thankfully, we live in America.

tnkz to all for input.

DM

Last edited by DangerMouse; 10-17-2008 at 06:34 PM.
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Old 10-17-2008, 07:28 PM   #39
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gp, dark cloudy days is why i'm leaving it electric too.
Yeah, the electric back up will ensure you still get warm water in the house, but the water in the roof tank may get colder, not warmer, which means it will cost you more to bring the temperature back to to ground temperature, and then up to set point, in the main tank.

If you heat the water some before it gets to your main tank, it will cost less to heat it to set point.

If you chill the water some before it gets to your main tank, it will cost you more to heat it to set point.

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Old 10-18-2008, 06:41 AM   #40
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what roof??? it's going to be on my well pit cover (post #30) ...... and, "freezing is why i still have not decided to leave it hooked up in winter. if i can get help figuring out how to, or simply figure it out myself, i will. i already pay next to nothing to heat, perhaps i can pipe some of that to the box and my well pit" (post #38) .....
DM

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Old 01-02-2012, 07:27 PM   #41
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CPVC is rated 180f @ 100 psi
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Old 01-03-2012, 04:53 AM   #42
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CPVC is rated 180f @ 100 psi
....and? You lost me.....

DM

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