Comment:
great way to do this.
black poly pipe can be a pain to work with. i let it heat up in the sun for a few hours then wrestle with it. since this is a coil system, you don't have to unravel it, just slowly flatten the coil out on a hard surface then attach the wood.
putting the hose ends in very hot water also works when attaching unions and elbows, and eliminates the mess of vegetable oil. be sure to buy stainless steel clamps.
i'd suggest insulating the hot water pipe that comes off the roof to the house, you can lose 1 degree per foot when hot water has to travel.
i'm going to try this for a summer shower project on my show, putting the hose on my wood shed.
thx, eric. gardenfork.tv
How To Install a Solar Hot Water Heater - Part 2