255K views · 2.2K reactions | well here it is as promised! The propane pool heater in action! We are getting some serious heat gains, I could further increase it by slightly closing the outflow and slowing the flow of water but I really don't think it's going to be necessary, especially with a 27 degree gain #modernhomestead #homestead #poolheater #swimmingpool #diy #howto | Modern Homestead | Facebook