This video shows you how to build a DIY Solar Hot air collector that can be used to supplement the heating requirements of a house in a cold climate
As long as the house is well insulated and one side of the house has adequate sunlight exposure a home made solar hot air heating system could be a good investment. The price of oil will continue to rise, but the wise use of sunlight energy may be used to reduce the consumption fossil fuel concentrates.They may be mounted vertically on the side of a house to take advantage of the oblique angle of a winter’s sun. These home made collectors can be active or passive. By adding a fan to a passive hot air collector and making it active the heat collection efficiency is improved.