Gas Hot Water Systems
Although gas prices are rising, a natural gas hot water system has much lower running costs than electric Switching from electric to gas will have higher installation costs to connect the gas piping to the unit.
A typical household with four people needs a gas hot water system with a 135 – 170 litre tank. Different units have either a small gas pilot light, or electric ignition. If your neighbourhood is prone to blackouts, you could lose your hot water with electric ignition.
Cost: Gas hot water systems range in price from about $900 to $2000 (excluding installation costs).
Continuous Flow Hot Water Systems
Most commonly gas operated, continuous flow or, instant hot water units work by heating water as it passes through the system. It only heats when you’re using a hot water outlet, making it extremely energy efficient to run.
Cost: Instant hot water systems range in price from about $500 to $2000 (excluding installation costs).
Solar Hot Water Systems
Consists of solar collector panels and a storage tank.
A four-person household typically needs about four square metres of solar collector area (two panels) and a 300 – 360 litres tank.
The storage tank usually has an electric or gas booster element to keep the water hot on days with less sunshine.
Cost: Solar hot water systems range in price from around $2000 to $7000 (not including installation).
Heat Pump Water Heaters
An efficient form of electric storage tank system that operate using a compressor like a fridge or air conditioner. They need to be installed in a well ventilated area, and work best in a warm or temperate region such as the Gold Coast. A four person home typically needs a 270 – 315 litre tank.
Cost: They range in price from about $2500 to $4000 (not including installation).
Which hot water brand is best?
Rinnai has a large range of hot water systems catering for all Australian households, with a reliability guarantee. We install continuous flow, solar, gas and electric hot water systems manufactured by Rinnai.
Rheem is a leading brand producing reliable hot water systems for over 75 years. Rheem are also the manufacturers behind other leading brands such as Vulcan and Aquamax. Gas, electric, solar water heaters and heat pumps are available.