Hot water

After heating your rooms, hot water is the next biggest user of energy at home.

You can cut hot water usage by:

• limiting showers to 3 to 4 minutes
• installing water-saving showerheads and taps, and fixing leaks
• washing clothes in cold water
• reducing the temperature on your hot water tank or instantaneous system
• insulating all pipes and storage tanks
• installing a new efficient electric hot water heat pump.

Choose wisely

Look for high star ratings when purchasing a hot water system.

Hot water heat pumps

Hot water heat pump systems have come of age in the last 10 years and work very well, even in the ACT's cold climate. Heat pumps use between 55 to 80% less energy than standard electric storage or gas hot water systems. Plus, operating costs can be reduced further if you power it using solar panels on your home.

Good quality electric hot water heat pump systems are the lowest running cost solution for the ACT climate, using even less energy than a solar hot water system with a gas or electric booster. This also frees up roof space for solar panels to power your home.

Do your research and choose a high-quality hot water pump suitable for the ACT's climate. The Clean Energy Regulator is a good place to start.

Find out about possible hot water heat pump savings through:

• Sustainable Household Scheme
• Home Energy Support Program
• the Clean Energy Regulator.

Solar tubes

Evacuated tube systems provide excellent performance in overcast conditions and can be used in subzero temperatures. However, it’s worth considering a flat panel solar system to provide benefits to your household beyond your hot water system.

Electric storage

A standard hot water unit is the least efficient way to heat water. If your system is over 10 years old, it may be wise to look at a more efficient replacement.

Gas

While natural gas is used for instantaneous and gas storage hot water systems, it’s best to switch from gas to reduce carbon emissions. Choose a more efficient electric option.