• Solar Thermal Resources
Evacuated tube solar collectors minimize convective heat loss by placing the solar absorbing surface in a vacuum chamber. Radiation heat loss is also minimized by using a low emissivity absorber. We suggest a wide range of this type of solar thermal collector applications and installations. Factors to consider for Calculating, Designing, Positioning, Installing, and Solar Water Heating Components are addressed

• Economic Benefits
Solar water heating can be one of the best investments made in a solar energy technology. Around 30% of a household's energy costs come from water heating. Solar water heaters are capable of facilitating the same amount of heated water at a fraction of the energy expense compared to contemporary water heating systems. So why is it that most homes are still using gas and electric heating systems?

Water heating can account for 30% of a household's energy use. A solar hot water heater can be able to facilitate the same amount of water for a fraction of the cost. Of course a solar hot water heating array's performance is dependent on the intensity of the sun in its location. The initial expense of installing a solar hot water heater ($3500 to $5500) tends to be greater than installing an electric ($450 to $650) or gas ($750 to $1000) water heater. However, when you take energy costs into account, the solar system will be a lower total cost in ownership for the long run.