Hot Water
Energy efficient hot water solutions, engineered to suit your site.

The world is rapidly upgrading to heat pump hot water systems, because they use 70% less energy. Meanwhile, hot water provides a perfect thermal storage solution to capture excess solar PV energy.
Hot Water done properly.
Every site is different.
Traditional electric hot water systems uses 300% more energy than heat pumps, the world has set Net Zero targets to phase out gas, and the government is subsidisng heat pump upgrades.
So why do many plumbers tell you not to install a heat pump?
Unfortunately, the market is being flooded by low quality products and non-compliant, non-engineered, heat pump installations. This unfairly gives heat pumps a bad name.

Austep takes a different approach.
We are not restricted to one brand or technology, and we engineer solutions tailored to each site (considering Total Cost of Ownership, peak demand, climate zone, available fuel sources, site capacity, R values, recovery time, and waste heat recovery).
We quality control best-practise installations considering insulation, drainage, ventilation, noise levels, and corrosion proofing.
We focus on environmentally friendly refrigerants, while most companies are still using R134A (a refrigerant with a high GWP which is being phased out).
Our inhouse energy guru David has installed thousands of hot water systems, including the first ever heat-pump hot water system in Australia, in 1982! All this is backed by detailed savings and design calculations through our in house modelling and engineering.
In some cases we can also design your hot water to act as a thermal battery and capture excess solar PV electricity instead of you exporting it to the grid while feed-in tarifs are low, or capture waste heat from your HVAC plant to utilise energy that would have been wasted.
- Yes – so long as you choose a system that matches the climate zone.
- No more than a split system air conditioner. Better quality systems have lower noise, ranging from 37 DB (library) to 60 DB (sound of a dishwasher). Locate unit away from high occupancy areas. Use inbuilt timer to disable at night if required.
- Stay away from refrigerants like R134a as they are hydrofluorocarbons(HFCs), which have large impacts on climate change. Instead, use low-GWP refrigerants such as hydrocarbons (e.g. R290) or carbon dioxide (R744).
- Stainless Steel Tanks are long lasting, but may struggle with high mineral or bore water. Glass-Lined Tanks are better if you have high mineral or bore water. There are also super insulated plastic tanks that have higher R values, and corrosion proofing solutions for systems near the beach.
- In most cases there are STC rebates available anywhere in Australia. In NSW and Victoria there are also state government incentives.