Heat Pump Hot Water Systems
Heat Pump Hot Water System use industry-leading technology found in refrigeration and air conditioning units, where energy is drawn in from the ambient atmosphere and transferred into heat. An Ozone friendly refrigerant R744 (CO2) absorbs the heat, which then flows into a compressor where it’s converted into a high-temperature gas. It then passes through a condenser within the water tank and the water is heated up. A Heat Pump System can allow you to save dramatically on your conventional electric storage hot water bills. The result is a system that requires radically less electricity to heat water when compared to conventional hot water systems. Most heat pump systems are eligible for an STC Rebate.
A storage tank should hold a one day’s supply of hot water, the Heat pump storage tanks come in 160, 250, 270 and 315 litre. For help with selection please contact our free call number 1800 689 919 or you can simple fill in the quick quote form and we will be in touch within 1-2 hours (within business trading hours).
A tempering valve mixes your hot and cold water to deliver hot tap water at a constant temperature. Tempering valves have a temperature sensitive element which adjusts the mix depending on the temperature of the incoming water flowing through the valve. The valve is designed to maintain a constant outlet temperature, reducing the risk of accidental scalding. The regula-tion in NSW is 50ºC for all bathrooms and 45ºC for childcare and elderly care facilities. Your tank temperature setting at the thermostat must be a minimum of 60c. This prevents bacteria and diseases growing. The average temperature of domestic hot water is 70 ºC. A much safer temperature for domestic hot water is 50 ºC. This is because water at a lower temperature takes longer to cause injury. For example:
- At 60 ºC, it takes one second for hot water to cause third-degree burns
- At 55 ºC, it takes 10 seconds for hot water to cause third-degree burns
- At 50 ºC, it takes five minutes for hot water to cause third-degree burns
For more information on the Tempering valve requirements please click here to see Fair Trading NSW fact sheet
What are STC’s
The Australian Government lists solar water heaters that are eligible for STCs and are therefore eligible to receive a rebate based on the number of STCs awarded. An STC is a calculation of how much energy is expected to be saved over ten years when using a solar water heater compared to the electricity consumption of an equivalent electric water heater. 1 x STC is 1 x MWh of electricity saved over 10 years = 100 kWh saved in a year. Performance calculations take into account geographic location, solar radiation, the angle of the sun, the efficiency of the solar collector, tank heat loss, cold water temperatures, the quantity of hot water used and hot water usage patterns. The more STCs awarded to a system equate to a higher rebate available on the purchase of that system.