The answer is yes. Water pressure does affect the efficiency of gas geysers. They are dependent on water pressure to operate as they do not hold a large amount of water ready for use like large standard electrical geysers. They are also activated by water flow. A fair pressure (or flow) is also needed to keep the temperature controlled. If the water slows down, it can get too hot.

How to increase water pressure to your gas geyser:

If you live in an area where you frequently experience low water pressure, or if you use water tanks, you will need to install a pressure pump along with your gas geyser. Alternatively, you can opt for a ‘low flow’ geyser that is especially designed for low water pressure situations.

  • Pressure pumps: Pressure pumps are designed for use with standard gas geysers. They help to maintain steady water flow at the correct pressure. This means the geyser will operate, and the water will not get too hot.
  • Low flow geysers: Also called low pressure geyser, these can be operated off rainwater (or ‘JoJo’) tanks. They are ideal for rural properties, dry areas, and homeowners wanting to save using municipal water. They only need water flowing into them from a minimum height of 1 metre. No pressure pumps required.

So yes, water pressure is crucial, but this is not a reason to forgo gas geysers. They will help you save on electrical bills, and a pressure pump or low flow gas geyser will help you save on water bills too. They are also small and tidy looking – perfect for convenient installation as needed.

Each gas geysers will come with instructions on the ideal water pressure. Your installer will advise on whether you could use a pressure pump to help regulate water pressure. Alternatively, they will recommend the best model for the situation. Keeping your geyser maintained will add to its longevity and prevent unexpected damages.