Solar Heaters and Cookers

UltraTec represents Solahart Industries of Australia, the makers of the world’s most popular solar water heating system. The range includes the low cost direct water heating system, the Hot Top and the even more efficient Solahart J series. These units are available in 125, 150, 180 and 300 litre capacities. These systems are in use in hotels, lodges, hospitals, dispensaries as well as private residences. They have helped to significantly reduce energy bills for these facilities.

www.solahart.com.au

Solar Water Heating | Solar Cookers

Thermosiphon Principle – How does this work?

Solahart water heaters make use of two naturally occuring phenomena for their operation;

· Black objects absorb heat, and · Hot water rises.

It's a simple system, where water is the only moving part. As the sun warms the collector, the water inside becomes hotter, expands, becomes lighter, and risers upwards towards the tank. The colder, heavier water is drawn down into the bottom of the collector, where it is heated, then moves upwards...and so on...and so on. This circular heating motion is called the thermosiphon effect. The greater the difference in temperature between the water in the collectors and the water in the storage tank, the faster the flow between them