Improved Solar Pool Heater - Full build

It's here, a solar pool heater created from all of your comments (Thank You), and it's a good one, well, as far as I know... The UK summer stretched over a full 2 weeks it seemed, up to when I completed this panel. But, despite this, the new version 2 solar pool heater did better than I expected, reaching an average of 500W in one day, that's 4kWh over an 8 hour period, plus hit a peak of 640W (measured using flow rate and input to output temperature). Considering the size difference to last years version, version 2 performed slightly better. This was probably due to all the suggestions in version 1's comments. It's quite interesting what the collective can achieve when focusing on developing something like this. I wonder what else we can achieve. Items purchased: - 8mm x 25m copper coil - £50.40 each (3 of = £151.20 Total) https://www.tradingdepot.co.uk/coil-o... Fitting reducer with solder ring - £0.91 each (6 of = £5.46 Total) https://www.tradingdepot.co.uk/search... Glass frame, thanks to a friend (cheers Mark). ---- MAKERS CENTRAL 2022 ---- If you're attending Makers Central 2022 I'll be here: - https://www.makerscentral.co.uk/EXHIB... Music in play order: - Nostalgia    / vexento     / vexento   Music promoted by Audio Library    • Vexento - Nostalgia   Nimbus - YouTube free music Ascend    / vexento     / vexento   Music promoted by Audio Library    • Vexento - Ascend   We Are One by Vexento    / vexento     / vexento   Music promoted by Audio Library    • We Are One – Vexento (No Copyright Music)   Tevo by Vexento   / vexento      / vexento     / vexento   Music promoted by Audio Library    • Tevo – Vexento (No Copyright Music)   #WelcomeToMyGarage #dev255 #solarwaterheater #solarpoolheater #poolheater #homeprojects #summerprojects #sommerprojects #homediy #homemade #doityourself #poolwaterheater #athome