11 Responses to “solar panels pool heater -Solar Panel for Swimming Pool”
Great video, thanks for the useful information. I plan on making one just
like that on
a 4 X 8 sheet of plywood. Just wondering why you did 2 pieces instead of 1
whole 4 X 8 sheet.
Also, could I get 400 feet on one sheet of Plywood 4X8 ? Your version had
200 feet with room to spare…
I will suggest that black for the background plywood is not optimum. Why
would you want the plywood to get hot by solar gain? You won’t be gaining
much by conduction/convection between the hot air inside/under the glass
and the hose. With all the spaces in between the hose as you have, I think
your best bet would have been to put some heavy-duty aluminum foil over the
last layer of primer when it is still a bit wet–ie stick it to the
background. Now the hose is heated both from in front, and partially from
behind (the normally shaded side) via reflection. Now, you can use less
hose by putting a bit of space in between your turns–like 1/2 to 3/4 of a
hose width of space between each run. Unless the light is coming in at
exactly 90 degrees–not likely for long–light missing the hose top will
reflect off the aluminum foil background and heat the hose from behind, at
least a bit. More bang for your buck, as less hose is lower hose cost.
Plus, less heating damage to the plywood over time as it will stay cooler.
Fantastic Idea. How much water is in your pool ? With this 5 deg.
difference in the water from the pool and the output of the panels, how
long it takes to increase the temperature of the pool by 5 deg ?
When it comes to solar heating,…. nothing beats a good solar blanket, I
switched over to a Thermoshield solar blanket, is is blue on top and black
on the bottom, makes a noticeable difference. Use the entire surface of
your pool as a solar heater, hoses and pipes will never beat it. Way too
much water in a full size pool. Do the calculation you will see.
This year we had a relatively cold summer with not as many sunny days. But
on sunny days, the water coming out of the solar panel was always at least
5 degrees warmer than the water it was being drawn from in the pool. This
was our first year with this solar panel, and we’re thinking about making a
second one for next year.