Savings Calculator

Savings Calculator

Choosing a high efficiency hot water system, such as the Hydrotherm, is one of the most cost effective ways to reduce household energy bills.

Our Running Cost Estimator allows you to accurately compare the Hydrotherm against other hot water systems based on your usage patterns and current power and gas prices.

Hydrotherm Heat Pump
Energy usage per day kWh
Energy rate $ /kWh
Daily connection fee $
Cost per day $
Energy usage per day
Energy rate $ /
Daily connection fee $
Cost per day $

Annual Running Cost

Total savings per year

Ten Year Running Costs

Total savings over 10 years

Disclaimer: Please note that the results from the Hydrotherm Online Calculator should only be used as a guide only. While every effort has been made to ensure the accuracy of the calculator, individual circumstances may affect the determined potential savings. The energy consumption figures used for the gas and electric systems were based off industry average water heaters and do not reflect any specific model. The actual energy use may vary between different models. There are a multitude of factors that go into the calculation of hot water electricity bills which were not accounted for in this calculator. These factors include fluctuations in ambient air temperatures, location of hot water system, temperature of incoming water etc.. Electricity prices are based on the Queensland Government Firday 16 June 2017 Gazette ( and include GST. The energy prices used in this calculator may not reflect electricity prices available across all of Australia. The LPG Gas and Natural Gas values were calculated from Queensland industry averages and also do not reflect prices across all of Australia. Heat pump systems should not be used on Tariff 31 (Electric Off Peak). Therefore calculating the running cost rate when comparing a Hydrotherm system versus an Electric storage system on Tariff 31, the Energy Rates for the Hydrotherm System are Tariff 33 rates. Daily Connection Fees for Gas LPG were calculated on the industry average rate for the rental of the LPG bottle. If you do have any feedback or questions about our calculator, please email us at
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