Water Heating

Hot water heaters come in a wide variety .Although they all heat water to a set temperature, they may do this in different ways. Some have electric coils inserted into the water, others heat with gas-fuelled flame, and others use heat pumps to transfer heat. Regardless of how the water gets heated, they can all be classified into two distinct groups – tank and tank-less.

Tank heaters store hot water in a storage tank so that it is available for instant use. This is useful when there is a large demand and the reservoir of hot water is necessary. The main problem with tank heaters is that they use up a large amount of energy to hold water in a tank before the hot water is used. In some instances, it may be days between uses. The water loses its heat over time; the water heater will have to cycle on and off continuously over those days, regardless if the tap is ever opened or not.

Another problem with tank heaters is that they have a defined capacity, after which there is no more hot water. Users have to wait for the tank to refill and reheat before more hot water is available. A tank-less water heater can be a better option because it resolves both of the major problems with tank heaters. It heats the water and sends it directly to the point of demand. There is no tank and thus no added cost of storing the water. The tank-less heater can use gas or electricity as a heating source.

It is vitally important that the right system is selected for the right end uses or more energy will be consumed than necessary.

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