tankless water heater

How the tankless water heater works

The tankless water heater is a device that allows for instant heating of water when required. This means energy savings and at the end of the day cost savings.

The conventional water heater normally heat large quantities of water and keep the water warm until usage is required. Although you have the benefit of having hot water any time, the cost involved is simply not worth it. The tankless water heater is the modern solution. Instead of using solar geysers to save costs it is now possible to only heat the water when you need it. Since there are times that you will not want the geyser to run such as when you are on holiday or even during the day when nobody is home, you will want a device that can ensure instant hot water without having to keep water warm until usage is required.

How does the tankless water heater work?

Just as the name suggests, there is no storage device required. Instead of having a large water tank to store the heated water, the water will be heated the moment the hot water tap is opened. The cold water that runs through the pipe passes a gas burner or if it is an electric unit an electric element that heats the water. The benefit is that you will not have to wait for the geyser to fill up and water heated before the next person can take a hot shower or bath. This is especially beneficial for resorts where many persons in one chalet or camp may need to bath.

How many litres of water can be heated?

The normal rate of heating is about 6 to 20 litres per minute depending on the size of the unit. The tankless water heater can thus heat enough water to ensure a steady flow of hot water for the kitchen, a bath tub or even the shower.

Gas or electric?

The benefit of the gas water heater is that it offers a higher flow per minute than the electric tankless water heater.

What size to install?

A smaller unit may not be able to provide a constant flow of hot water for large households or when the demand is high. As such you may need to either install a larger unit or install two or three units to cover specific points in the home. You can view the specification guidelines at our tankless water heater page