3 ms·
That's what I was going to comment (although it's closer to 30% than 15% these days), It's low tech and a fraction of the cost, for a swimming pool all you need
by lm28469 3y ago
That's what I was going to comment (although it's closer to 30% than 15% these days), It's low tech and a fraction of the cost, for a swimming pool all you need is a pump and some black pipes really
- sokoloff 3y agoThat probably flips the balance from "use solar thermal" to "use PV and heat pumps", especially in any environment where indoor cooling is simultaneously needed (which is a common case). If solar PV is 25% efficient and the heat pump CoP is then 4.0, you get a gross efficiency of 100% (plus "pre-paid" air conditioning).