Translating…
Imagine having hot water than is heated by the sun. These are one of the options that are available when using a tank for hot water storage. Hot water storage tanks also known as hot water cylinders, or warm water tanks are essentially tanks for storing water to be used in creating heat, or for domestic purposes such as cleaning and washing or showers. Because water has a relatively high capacity to retain heat, a properly insulated tank is able to maintain a high temperature for days, and water, being cheap and abundant can be used a convenient source for heat retention.
Several methods can be used to heat water in warm water storage tanks. Burners are often built into many tanks. The burners can be fed by different sources of energy that include oil or gas, and electrical resistance. Other configurations include feeds from heat exchange systems. Solar panels can also be used to heat water.
Facilities such as hospitals, apartment buildings, hotels and other multi-dwelling units often need a constant supply of warm water, and will usually have warm water storage tanks with enough capacity to meet demands at peak periods of operation. These tanks are lined internally with corrosion resistant material and the water is normally pressured to 125 psi which is more than adequate to be fed any supply.
In the typical household, the capacity of the storage may be between 40 to 60 gallons, and can differ by the source of energy that is used for heating. In multi-dwelling units, they will often exceed 12500 gallons. The outer shell of the tank would also be double-insulated to prevent heat loss. It is important to determine the most appropriate size of the tank that will be needed for your home.
A tank that is larger than you need, will cost you more than is necessary, because energy will be wasted in heating water that eventually cools, and will need re-heating. A tank that is not large enough, will have you running out of warm water at the most inopportune moments.
Determine the amount of hot water needed at peak. Measurements are usually denoted by a FHR or First Hour Rating, which is an indication of the amount of heated water the tank will supply on the busy day. A small capacity tank with a high FHR may be suitable for your needs. The design is the secret to the operating of warm water tanks. Heat normally rises, and as warm water is extracted from the top of the tank, cold water flows in to the bottom of the tank, where it is heated by either combustion of gas or oil, or by electricity.
More competent storage tank water heaters generally perform as much as 40 percent better than the conventional models. Some tanks may have special features to increase the energy-efficiency. The high-efficiency gas fired tanks may include energy saving electronic ignition that eliminates the need for continually burning pilot lights, or higher efficiency burners that can reduce emissions.