![DIY Solar Hot Water Heat Exchanger - Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com DIY Solar Hot Water Heat Exchanger - Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com](http://farm3.static.flickr.com/2566/3898886394_39dc2326c5.jpg)
DIY Solar Hot Water Heat Exchanger - Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com
![DIY Solar Thermal Water Heater! - COPPER PIPE Solar Water Heater! - Easy DIY (full Instr.) 150F+ - YouTube DIY Solar Thermal Water Heater! - COPPER PIPE Solar Water Heater! - Easy DIY (full Instr.) 150F+ - YouTube](https://i.ytimg.com/vi/7uOQEXmyHRs/maxresdefault.jpg)
DIY Solar Thermal Water Heater! - COPPER PIPE Solar Water Heater! - Easy DIY (full Instr.) 150F+ - YouTube
![DIY Solar Air Heater! "Hot Water Powered" Air Heater! (w/8x8 Heat Ex.) 100% Solar Pwrd! to 25k BTU! - YouTube DIY Solar Air Heater! "Hot Water Powered" Air Heater! (w/8x8 Heat Ex.) 100% Solar Pwrd! to 25k BTU! - YouTube](https://i.ytimg.com/vi/aiPEVavt0bE/maxresdefault.jpg)
DIY Solar Air Heater! "Hot Water Powered" Air Heater! (w/8x8 Heat Ex.) 100% Solar Pwrd! to 25k BTU! - YouTube
![DIY Solar Water Heater! - Solar Thermal COPPER COIL Water Heater! - Easy DIY (Full instr.) 170F - YouTube DIY Solar Water Heater! - Solar Thermal COPPER COIL Water Heater! - Easy DIY (Full instr.) 170F - YouTube](https://i.ytimg.com/vi/nC_Ql5qVs4Q/maxresdefault.jpg)
DIY Solar Water Heater! - Solar Thermal COPPER COIL Water Heater! - Easy DIY (Full instr.) 170F - YouTube
![DIY Solar Water Heater! - Deluxe "Aluminum backed" COPPER COIL Solar Water Heater! 175F Full Instr. - YouTube DIY Solar Water Heater! - Deluxe "Aluminum backed" COPPER COIL Solar Water Heater! 175F Full Instr. - YouTube](https://i.ytimg.com/vi/btQtPQpUf90/maxresdefault.jpg)