Home Cost Comparison tool

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Cost Comparison

At the end of these steps we'll show you how your preferred natural gas solution stacks up against the second appliance type you choose. It's easy to change your selections later too.

At the end of these steps we'll show you how your preferred natural gas solution stacks up against the second appliance type you choose. It's easy to change your selections later too.


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Both continuous and cylinder gas water heating solutions can be fitted outside your house to save interior space.

Gas continuous water heaters
Also commonly as known as ‘instant’ or 'infinity' gas systems, gas continuous water heaters supply hot water to a whole house, with the burner lighting automatically to heat water whenever any hot tap is turned on. The water temperature can be set to a safe 55°C, and there are plenty of add on features such as digital controllers to lower the temperature for children.  With a continuous system, you’ll never run out of water.

Usually, with a standard design house, only one gas continuous water heater is needed to supply hot water to the whole house.

Gas hot water cylinders
Gas cylinders are a good solution for large families, because they reheat water more quickly than electric cylinders. Cylinders aren’t as efficient as continuous water heaters at using energy to heat water, but most models will continue to work during a power cut.

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Disclaimer: The information displayed in this tool is based on a number of assumptions. The tool and the outcomes of it should be treated as a guide only.