Daily Bulletin

  • Written by NewsServices.com

If you are thinking of installing a continuous flow hot water system to supplement your household’s demand, you may be wondering how much it costs, how it works, how to maintain it, and how much space it will take up in your home.

With so much information available online, it can be hard to know where to start. We have compiled some critical information here, including the installation requirements, sizes, fuel types, and efficiency capability as well as common problems with the systems.

What are Instantaneous Flow Systems?

Continuous hot water systems are an alternative to traditional hot water systems that utilize a large storage tank in which water is heated and stored until it is needed. The drawback of the older storage models is that once the water is used up, it takes quite a while to heat such a large amount of water again. They can also use energy inefficiently since the water is being kept warm while it is not being used.

Continuous, or tankless, hot water systems heat water rapidly once a user turns on a hot tap or appliance. They take cold water from the house’s pipes and employ gas or electricity to heat the water instantaneously. This kind of system won’t be able to support high water demands as well as a storage system, such as a household that regularly uses several appliances or taps at once.

Fuel Types

Popular fuel types for continuous flow hot water systems are electricity, gas, and solar. What sets these fuel types apart are their energy efficiency capabilities.

Gas-fueled continuous flow systems generally produce higher flow rates than electric ones. For gas-powered systems, one must have access to gas piping and a large diameter pipe to cope with the fuel requirements. You will usually want to install them outside because they need ventilation for the exhaust.

Systems powered by electricity are smaller and are often fixed next to the taps they supply. They can heat power for one or two outlets, and they don’t take up too much space, and can be set up easily inside the home.

Solar continuous flow systems are less common and will often require a gas or electric booster to ensure enough water for a household, especially on days that are not as sunny.

Benefits and Disadvantages of Continuous Flow Systems

Some of the benefits of continuous flow systems are:

  • * Significantly reduce your monthly energy bills since the systems don’t use energy unless the taps are turned on

  • * Long lifespan - unlike the traditional storage water heaters, instantaneous systems have a longer lifespan of approximately 20 years.

  • * Gain more valuable space inside your home, since continuous flow systems do not require a large cylinder for storage.

The downsides to these hot water systems are:

  • * High upfront cost - the initial cost of installing these systems is higher compared to traditional tanks.

  • * Mineral buildup - Over time, minerals accumulate inside these tanks. When the water heats up, calcium and manganese are released and can affect the effective functioning of the system over time if filters are not continually changed.

  • * If the demand for hot water in a home is exceedingly high, this may not be the most efficient route.


Instantaneous hot water systems are easy to maintain. However, if you experience any of the above issues with your hot water in Adelaide, contact the manufacturer or a professional plumber.

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