Pump and control question

[donarob]

I have been very intrigued with this project and am very interested in attempting this project. My question is what kind of pump would I need for this project? I foresee the panels being mounted on the deck that surrounds the pool so there would not be a need to pump the water to the roof (20+ft vertical). Additionally how would the pump be controlled? I would not think that simply placing it on the same timer as the pool pump would be sufficient or needed at times base upon the temp of the pool water. Is there a site that can provide the information?

[Mike90250]

I have been very intrigued with this project and am very interested in attempting this project. My question is what kind of pump would I need for this project? I foresee the panels being mounted on the deck that surrounds the pool so there would not be a need to pump the water to the roof (20+ft vertical). Additionally how would the pump be controlled? I would not think that simply placing it on the same timer as the pool pump would be sufficient or needed at times base upon the temp of the pool water. Is there a site that can provide the information?

For heating like this, the store you get the solar water panels from, has pumps the right size for the panels. And, you should have a DC pump option too, when the sun shines, the water heats, and the pumps runs off it's own 200W PV panel.

[donarob]

Strapping & Spacing your coils

Mike-Mat,

What did you use to strap down your coils. Also did you place spacers in between the layers on your coils or were you able to lay it flat and it simply stayed?

donarob

[Mike90250]

If you are "rolling your own" heater, you want to have enough fluid flow, that the warmed water, is only a little warmer than the feed water. If it feels hot, you need more flow, as hot water radaites heat fast, and you are trying to collect heat.
Taco has a line of good small water pumps, maybe browse through their site. Look for "recirculating pumps".