Snooze wrote:


Do you honestly feel the need to quote every one of his forgeries in their
entirety just to point out they are forgeries?
Those of us that can read and understand usenet headers well enough to
recognize forgeries can do so with out you pointing them out. The rest don't
understand or care.

Snooze wrote:

I've often toyed with that very idea myself. The water in the solar panels
would have to be a closed system. Circulating pond water through the solar
panels would just clog up the collectors with muck and algae, so the bottom
of the pond would need some kind of radiator/heat exchanger.

You didn't say how large your pond is, in a small pond you'd have to be
careful, it's fairly easy to turn a small pond into a hot tub if you run the
solar heater in the summer. I suspect that by the time you add in the cost
of a pump that can raise water a good 20 feet into the air, the solar
panels, the plumbing etc probably cheaper to just add a pond heater.

Its about 1000 Gal.
Yes I expect you are right that the pump and piping required would not
make this a cheap project. That and our local does not get a lot of
consistent sun in the winter when you need the heat.

The pump requirements are not that extreme. Since the piping up to the roof
and back is a closed system the pump doesn't need enough head to get to the
roof. The water on its way up to the roof is balanced by the water on its
way back down. The pump only has to overcome the dynamic head caused by
friction losses in the pipe. The system would have to be primed by
something like a garden hose. The black poly pipe is very cheap. No heat
exchanger is needed, black poly will normally only grow a thin biofilm on
the inside when used with pond water. You want to be able to turn it off
when the sun isn't shining otherwise it makes a great radiator to cool your
pond.

I built a system like this when I was a teenager to warm our backyard above
ground pool in the spring. Just a long coil of black poly pipe on a 4x4
piece of plywood.

-- Mark


"Greg Cooper" wrote in message
news:4uZhe.118883$3V3.46877@edtnps89...
Snooze wrote:

I've often toyed with that very idea myself. The water in the solar
panels would have to be a closed system. Circulating pond water through
the solar panels would just clog up the collectors with muck and algae,
so the bottom of the pond would need some kind of radiator/heat
exchanger.

You didn't say how large your pond is, in a small pond you'd have to be
careful, it's fairly easy to turn a small pond into a hot tub if you run
the solar heater in the summer. I suspect that by the time you add in
the cost of a pump that can raise water a good 20 feet into the air, the
solar panels, the plumbing etc probably cheaper to just add a pond
heater.

Its about 1000 Gal.
Yes I expect you are right that the pump and piping required would not
make this a cheap project. That and our local does not get a lot of
consistent sun in the winter when you need the heat.

"Maxx Pollare" wrote in message
. ..
The voice of "Reel McKoi" drifted in on the cyber-winds,
from the sea of virtual chaos...

Do you honestly feel the need to quote every one of his forgeries
in their entirety just to point out they are forgeries?

## Wouldn't you? Or would you rather have people think you're a
rude, crude semi-literate troll?

No, I rather let 7+ years of prior post speak for themselves rather
then add to the current mess....

So for now, where's your hands Carol?
Maxx Pollare, a "small god" in his own mind...
=====================================
I'm sitting on them. :-)))
--
McKoi.... the frugal ponder...
EVERYONE: "To persevere in one's duty and
be silent, is the best answer to calumny."
~~~ }((((o ~~~ }{{{{o ~~~ }(((((o

Mark Swinkels wrote:

The pump requirements are not that extreme. Since the piping up to the roof
and back is a closed system the pump doesn't need enough head to get to the
roof. The water on its way up to the roof is balanced by the water on its
way back down. The pump only has to overcome the dynamic head caused by
friction losses in the pipe. The system would have to be primed by
something like a garden hose.

Good point about being a closed "balenced" system. I had not thought
about that.

"Greg Cooper" wrote in message
news:6YAhe.55460$vN2.43371@clgrps13...
Ok I know that "Spring has sprung" and all - but my pond does get a lot
of shade and warms up slow.
I have wondered about the idea of a using solar heat from a roof top
collector to warm the pond to a better temp and extend the active season
for my finned friends. Not that I have actually done more than
thinking about it - living is coastal BC is about the worst place next
to Washington state for hours of sun shine anyway. But I thought if
nothing else maybe it would be an interesting thought experiment and who
knows maybe someone out there has tried it. I am thinking that one
would need a water/water heat exchanger because circulating pond water
up through a collector would grow algae and clog I am sure.
Crazy idea? what do people think?

Cheers.

I just purchased a solar heater for my pool. As soon as it is up and
running, I'll post some results. It may be a good way to go for you.


--
BV
http://www.iheartmypond.com

BenignVanilla wrote:


I just purchased a solar heater for my pool. As soon as it is up and
running, I'll post some results. It may be a good way to go for you.



Thanks - it will be intersting to hear.
Cheers.

i was able to heat my pond to about 20=B0C about a month ago - there was
a heatwave in early spring. about 25-30=B0C every day for a week. i
pumped the pond water through garden hose. it would come out about 1=B0C
warmer when it finished gowing all the way through. i used about 50ft
of regular garden hose.

as soon as the heatwave passed, this did the opposite, it cooled water
not heated it. in this case it wasn't as much solar as it was a heat
exchanger. heat exchangers don't work when there's no heat!

i left the pond alone and it warmed up on it's own. the fish are all
happy and the plants are doing good.

i would suggest errecting a greenhouse over your pond and heating the
air inside, this will probably be best during the beggining and end of
the season. electrical conduit could make a frame and you can use
vapour barrier as a plastic instead of "greenhouse" plastic - that
stuff costs a fortune around here.

whatever you do, don't get electrical heaters for a big pond unless you
can afford very high electrical bills. my 300watt heater can maintain a
temperature of 75=B0F in my 125g tropical pond that has greenhouse over
it. 75-80=B0F is about 5-10=B0F warmer than the air during daytime in
Ottawa, Ontario. keep in mind that's not much water and it's well
insulated on all sides.

if you are really made of money, just get someone to install a natural
gas heater for you, the type that's used on swimming pools. several
thousand dollars... gah.

if you are really made of money, just get someone to install a natural
gas heater for you, the type that's used on swimming pools. several
thousand dollars... gah.

I'd think those tankless heaters, for $700, would work pretty well...

I'd be careful, though. Water comes out of them at very hot temperatures.

Reminds me of the Koi Shop in Del Mar that is directly over a sushi store.

My wife has a photo of that somewhere. :)

C//