Topic — Add New » Posts Last Poster Freshness
For Sale - Solar Hot Water Collector (missing a few parts) - Sydney 1 munter 5 years
Advice needed on DIY solar cooker using vacuum tubes and liquid heat exchanger 28 jamjamdave 5 years
Using solar energy for heating 18 Cam 8 years
Solakool air-conditioning - 2 33 johnmath 8 years
advice on evacuated tube invention 5 heatherstevens 9 years
Desertec 7 rockabye 9 years