Hot Water

Last Modified: Wednesday, 25 April 2012

Hot Water

Hot water is the most energy hungry energy service in the typical home and is responsible for 39% of your monthly electricity bill. Here’s how you can start to optimise the savings.

Category 1 Savings

  1. Turn your geyser down to 60°C and be sure to switch it off before you leave for work. You only need to turn it back on again when you go to bed.
  2. Shower instead of bathing as you will use less hot water and hence less electricity.
  3. Use cold water if hot water is not necessary (for example, hand-washing).
  4. Try not to let hot water run unnecessarily. Get into the habit of using basin plugs when washing.

Category 2 Savings

  1. Insulate your water pipes and wrap your geyser in a geyser blanket.
  2. Reduce your hot water use even further by installing energy and water saving shower heads.
  3. Be sure to fix any leaking hot water taps as they can waste up to 18l of hot water a day which equates to lost energy too.

Category 3 Savings

  1. Install a Solar Water Heater which can be plumbed to add volume to your existing geysers or even replace them altogether. Solar water heating uses the sun’s energy to heat water.
  2. Alternatively install a Heat Pump, which can potentially cut your water heating costs by up to 67% compared to a regular geyser, depending on the variables of your situation.
  3. Optimise electricity efficiency even further by fitting your geysers as close as possible to the points where the hot water is actually being used.