rinnai tankless gas water heater in nz

Tankless water heaters, also known as demand-side water heaters, are a type of water heater that does not store water. Instead, it heats water on demand, which can save you money on your energy bill.

How Do Tankless Water Heaters Work?

Tankless water heaters work by heating water directly. This differs from conventional storage-type water heaters, which keep a large volume of water at the desired temperature and release it as needed.

For the gas water heating to work efficiently, you need sufficient space around the unit to allow air to circulate. As a result, tankless electric models are only suitable for use in rooms with sufficient floor space. Tankless gas heaters are better suited for smaller bathrooms since they require additional ventilation.

Advantages Of Tankless Water Heating Units

• They can provide a continuous supply of hot water as long as they are connected to a power source, unlike conventional storage-type units, which only operate on demand.
• They do not run out of hot water even if connected to solar panels. This means that you can install more solar power panels without worrying about running out of hot water during peak hours or on cloudy days.
• Tankless heaters take up less space than traditional storage-type water heaters, making them ideal for small homes or apartments.


If you are looking for an efficient water heater, that saves space, and provides a continuous supply of hot water, then a tankless gas water heating model may be the right choice. But Rinnai offers two types of tankless water heaters – gas-powered and electric – so you can choose the one that best meets your needs and budget.