Attic cooling and heating hot water.

[J Poy]

Hi,



I am thinking of installing a water tank to recover solar heat in the attic
to heat the water.

Can anyone suggest a good (Cheap) air to water heat exchanger that I could
use in my attic to recovery the solar heat . One that won't block up easily
with tap water minerals, I was thinking of using an auto radiator. ($89.00)
Has anyone ever tried to do this?



Any comments would be appreciated.



Thanks



Jay

 

[Tony Hwang]

Hi,



I am thinking of installing a water tank to recover solar heat in the attic
to heat the water.

Can anyone suggest a good (Cheap) air to water heat exchanger that I could
use in my attic to recovery the solar heat . One that won't block up easily
with tap water minerals, I was thinking of using an auto radiator. ($89.00)
Has anyone ever tried to do this?



Any comments would be appreciated.



Thanks



Jay

Hi,
Long coiled black hose?
Tony

 

[pjm@see_my_sig_for_address.com]

Hi,



I am thinking of installing a water tank to recover solar heat in the attic
to heat the water.

FUCKING DON'T CROSS-POST YOUR SHIT ALL OVER THE FUCKING KNOWN
UNIVERSE, ASSHOLE !!!!!

I DON'T FUCKING CARE HOW EASY AND CONVENIENT IT MAY BE FOR YOU
!!!!

DON'T FUCKING DO IT, MORON !!!!!!!!!!!

THE ENTIRE FUCKING INTERNET IS NOT REPEAT NOT HERE TO PROVIDE
EASY ANSWERS TO YOUR DUMBSHIT QUESTIONS !!!!!!!!!


Click here every day to feed an animal that needs you today !!!

http://www.theanimalrescuesite.com/

Paul ( pjm @ pobox . com ) - remove spaces to email me
'Some days, it's just not worth chewing through the restraints.'

HVAC/R program for Palm PDA's
Free demo now available online http://pmilligan.net/palm/
Free Temperature / Pressure charts for 38 Ref's http://pmilligan.net/pmtherm/

 

[Rowbotth]

Now THERE is a calm, deliberated, contemplative response to a simple,
technical query.

Missing a few pills this month, are we?

H.
===============

 

[[email protected]]

"Stretch" wrote:

How much money are you willing ton spend to recover this FREE heat? I
think you are spitting into the wind.

Stretch

Come to think of it, I DID convince my older sister to try
that once..... however....

I recover the heat from my attic & transfer it to the
swimming pool. An attic stat can bring on the pool pump &
attic fan. cu/al coil. Pool pump also on its own timer for
daily minimum run time.

Being the guy you are, and given the same set of
circumstances, you'd probably do the same.

Tobby

 

[Noon-Air]

PLEASE stop cross-posting this crap all over the world.

all future cross-posters will immediately be killfiled

 

[pjm@see_my_sig_for_address.com]

Are you daft, or what?

It was crossposted to a small set of newsgroups where it *is* on
topic.

FUCKING WRONG, ASSHOLE !!!!!

NOW SHUT THE **** UP !!!!!!!!!!

It would have been highly *inappropriate* to multipost the same
question to each group.

And it is highly inappropriate to complain that someone is using
crossposting for its intended purpose.

Click here every day to feed an animal that needs you today !!!

http://www.theanimalrescuesite.com/

Paul ( pjm @ pobox . com ) - remove spaces to email me
'Some days, it's just not worth chewing through the restraints.'

HVAC/R program for Palm PDA's
Free demo now available online http://pmilligan.net/palm/
Free Temperature / Pressure charts for 38 Ref's http://pmilligan.net/pmtherm/

 

[Robert Morien]

How ironic that someone so concerned about cross-posting, is incapable
of using a proper sig.

 

[Paul Hovnanian P.E.]

PLEASE stop cross-posting this crap all over the world.

all future cross-posters will immediately be killfiled

No top posting. Tsk, tsk.

 

[Paul Hovnanian P.E.]

Hi,

I am thinking of installing a water tank to recover solar heat in the attic
to heat the water.

Can anyone suggest a good (Cheap) air to water heat exchanger that I could
use in my attic to recovery the solar heat . One that won't block up easily
with tap water minerals, I was thinking of using an auto radiator. ($89.00)
Has anyone ever tried to do this?

In the attic? Why not put a collector on the roof? This will probably be
more efficient, plus it will shade a part of the roof and reduce the
heat gain in the attic.

 

[[email protected]]

FUCKING DON'T CROSS-POST YOUR SHIT ALL OVER THE FUCKING KNOWN
UNIVERSE, ASSHOLE !!!!!

Ignore Paul.

Nick

 

[Vaughn]

For a variety of reasons, please do not crosspost.

Decide which group is most appropriate and post your question there.
Someone may suggest a better group and you can then repost your question. I
can't see the original post, so the OP is probably someone who lives in my
killfile because of excessive crossposting and because he/she is obviously so
ignorant as to continue to post to groups that apparently do not even exist.

Vaughn

 

[[email protected]]

...If it is 120 degrees, with a fan blowing hot attic air over the radiator,
your water temperature will probably not get over 100 degrees.

It surely will, with a pump controlled by a differential thermostat.

Nick

 

[J Poy]

Sorry about the cross post thought the other newsgroups would be interested
in this topic.


Kevin you have a good point regarding the auto radiator. "I would be
concerned about an auto radiator, because you do not know how it has been
cleaned, or with what."

I asked the dealer he told me the radiator all brand new never used, but I
know they defiantly use chemicals for cleaning them even thou there new. I
was going to clean it out thoroughly and this will not be for drinking
water.

I am trying to keep the overall cost bellow $200.00 as I have many of the
parts required already. Only need the piping, heat exchanger and bypass
valves. I planned on using a separate preheat water tank in series with main
hot water tank. DC closed loop water pump or if possible a way not to have
to use one, but I don't think so.

I don't want to use black PVC piping. I like the idea of using the broken
solar panel but size limitations and I think it's hard to come by, at a low
cost.

My main concern is the clogging with water minerals in the heat exchanger
(HE) if I use an auto HE. Might have to add a water filter?

I already thought about heating the swimming pool, but I don't have one.
Tobby what type of HE did you use with swimming pool (cu/al) and what the
cost was?

Thanks everyone for you comments.

 

[Dimitrios Tzortzakakis]

This problem was long ago solved in greece, with heliotherma (=greek, sun +
heating) they are boilers you put on the roof and have glass collectors with
tubes painted black so that practically you have hot water from the sun 330
days a year.They also have a heating element for the (few) days when the
weather is cloudy.

 

[pjm@see_my_sig_for_address.com]

This problem was long ago solved in greece, with heliotherma (=greek, sun +
heating) they are boilers you put on the roof and have glass collectors with
tubes painted black so that practically you have hot water from the sun 330
days a year.They also have a heating element for the (few) days when the
weather is cloudy.

Beware of Greeks bearing free hot water


Click here every day to feed an animal that needs you today !!!

http://www.theanimalrescuesite.com/

Paul ( pjm @ pobox . com ) - remove spaces to email me
'Some days, it's just not worth chewing through the restraints.'

HVAC/R program for Palm PDA's
Free demo now available online http://pmilligan.net/palm/
Free Temperature / Pressure charts for 38 Ref's http://pmilligan.net/pmtherm/

 

[Derek Broughton]

For a variety of reasons, please do not crosspost.

Decide which group is most appropriate and post your question there.
Someone may suggest a better group and you can then repost your question.
I can't see the original post, so the OP is probably someone who lives in
my killfile because of excessive crossposting and because he/she is
obviously so ignorant as to continue to post to groups that apparently do
not even exist.

Oh, please. In the first place, cross-posting harms nobody. If you've got
a half decent newsreader _and_ you read more than one of the groups it's
posted to, you won't even see a second copy of the post. Crossposting to
irrelevant groups is another matter. This wouldn't appear to be an
electrical question, anyway, and people should try to understand that
"sci." is really not for home maintenance questions. otoh, posting to
non-existent groups (a) doesn't do any harm; and (b) how do you know??
Anybody with a newsgroup server can create an alt. group. He just might
have access to all of these groups.

 

[Bob]

Your idea has merit. Mineral buildup can be a problem in any heat
exchanger using hard water, a car radiator would be no worse and is a
very efficient exchanger. I suggest using your system as a feed into
your regular water heater, it will keep it from having to turn on as
often and will back up any shortfall in your heating system. A
prefilter will remove silt, which helps, but not dissolved minerals. A
water softener will help and will have other benefits but is expensive.
When you build it, consider using a bypass with a Y valve, during the
winter when the attic air is cold ( I don't know your climate), and
during that time you can service it, rinse out mineral deposits with a
weak vinegar/water solution. If you are getting a salvage yard
radiator, get the biggest one you can for the money. Use a simple fan
to boost its efficientcy, wire in a thermocouple to activate it or at
least a timer for the hottest part of the day.-Jitney

I doubt if auto radiators are designed using consideration of maintaining
the water to be suitable for human consumption. They may use lead solder, or
other materials may be used for corrosion resistance that could be dangerous
if consumed.

Bob

 

[Vaughn]

That is *bullshit*.

So much for a fruitful exchange of ideas. <plonk>

 

[rick]

Yet another screaming lunar Tick to add to my kill file.

PLEASE stop cross-posting this crap all over the world.

all future cross-posters will immediately be killfiled

Rick