Gas Hot Water Systems

Gas Hot Water Systems

When choosing a gas hot water system, there are now many options available. The two most common installed by plumbers adelaide are a standard gas powered storage tank system or a tankless, continuous flow system.  Storage tank hot water systems are typically operated by gas or electric power and holds a large quantity of pre-heated water until it is needed by the user. The water inside the tank will separate with the heated water on top and the colder, incoming water settling to the bottom, so that one draws off hot water from the top until the heat inside the tank is nearly depleted. Dux hot water systems of this type range in size from 135L to 170L. These models of hot water systems claim to support family sizes of 3-4 adults and 2-3 children. The “first hour” capacity of the tanks tells you how much water can be delivered in one hour. After the hot water is depleted, the unit will provide cold water until it has had time reheat. One draw-back to a tank system is that when it is not in use, significant heat is lost through the walls of the tank. Even in a well-insulated tank, the stand-by heat loss can be substantial and a gas-powered system will need to periodically fire up to maintain a steady hot water supply.

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Many providers like are now exclusively offering tankless systems for new installations. These systems boast a continuous flow of hot water as it is needed by the user. When the system senses a need for hot water, it turns on, heats up the water as it passes over a set of coils in a heat exchanger, and then shuts off when the flow stops. These systems can realize a 20-30% energy consumption savings depending on usage. Typical Bosch hot water tankless systems provided through Adelaide Hot Water range in capacity from 17-26 liters per minute and claim to service from 1 to 3 bathrooms. One tankless manufacturer, Rinnai claims that their systems can save as much as 40% on an energy bill. However, just as with a storage tank system, there are drawbacks to a tankless system. The most obvious is the size of the heating element. While a tank system needs to fire up periodically to maintain a steady supply of hot water, the burner is typically fairly small, in the range of 30,000-50,000 Btu/hour. A typical whole house tankless system, however, will have a burner that produces as much as 180,000 Btu/hour or more. A larger gas supply line is needed to supply the gas for these burners than is needed for a storage tank system, so if one is converting to tankless; this expense should be taken into account.

Regardless of what type of gas hot water system is used or installed, proper installation, repair and maintenance should always be done by a professional company specialising in plumbing in Adelaide. When choosing a plumber to install a hot water system, a small amount of research can go a long way. A good plumber will be experienced with the system he or she is working on, is insured, and offers some sort of warranty on their services and products. Looking for these qualities can help avoid added hassles and expense and ensure a quality hot water system installation.

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