Basics Of A Solar Hot Water Tank

The most popular implementation of Solar Heating are systems created to warmth hot water for homes. An important part of this systems is the hot solar water tank, utilized to collect solar heat energy. The collected heat from the solar panels is concentrated in a fluid which circulates through a closed-loop system (heat exchanger); only the heat is transferred to the clean water stored in the insulated water tank until you need it later on. Things you can typically expect from a solar hot water tank compared to conventional boilers or hot water tanks include:

- The volumen and storage capacity of a solar storage tank is a lot higher.

- Solar tanks must be tall and slim to support the thermal stratification in the tank because the solar heat exhanger at the bottom is focused on cold water, and the heated water rises in the tank. So that the hottest water is used first, the pipe enters the heater at the top of the tank.

- Insulating prevents heat loss and thus helps store heat for days, not merely hours.

- There is a heat exchanging unit in the bottom of the tank that transfers the solar heat to the tank. There is an additional heat exchanging unit in the upper part of the tank that can receive heat from another source if the water in this area of the tank goes below a specified temperature setting. Therefore, hot water is never unavailable.

Generally a solar hot water tank will be dimensioned to about the double size of the anticipated amount of consumption per day. Concerning this, the container for a family with 4 people and a standard spending of 40 litres hot water per head and day should seize about 300 to 320 litres. All the hygienic problems in bigger households with an highly vacillating total consumption per day can be avoided if you use Solar Combisystems as we recommend.

By: William Miller

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Proper insulating of a solar hot water tank is vital. You can find out more about correctly insulating a hot water tank on www.yoursolarwaterheater.com.