Slash Hot Water Costs With a Heat Pump System — Up to 70% Less Energy.

Yes. Quality heat pump systems operate effectively in ambient temperatures as low as -5°C to -10°C, making them suitable for all Victorian climate zones including alpine and highland areas. Most units include an electric boost element that activates automatically in very cold conditions to ensure you always have hot water. Performance (COP) does reduce slightly in cold weather but remains significantly more efficient than a conventional electric element.

Heat pump hot water units require outdoor installation or installation in a well-ventilated space — the system extracts heat from the surrounding air and needs adequate airflow. Most installations are in the same location as the existing hot water system (side of house, backyard, or roof area). The integrated tank-and-pump unit is typically 1.2–1.8m tall and requires 1–2m of clearance around the air intake. AEH assesses your site during the quote process to confirm the best location.

Savings vary by household size and usage. A typical 4-person Victorian household switching from gas hot water (including the gas supply standing charge) to a heat pump can expect to save $500–$900 per year on hot water-related energy costs. If solar panels are installed, scheduling the heat pump to run during solar generation hours can reduce the operating cost of hot water to near zero.

AEH installs leading Australian and international heat pump hot water brands including Reclaim Energy, Sanden, Rheem, Dux, and iStore. Brand selection is based on system performance, reliability data, warranty terms, and suitability for your specific installation configuration. Your AEH consultant will recommend the most suitable product for your home.

Heat pump systems require minimal maintenance. The air filter on the intake should be cleaned every 3–6 months (a simple wipe-down). Annual checks by a licensed plumber or technician are recommended to inspect the pressure relief valve and anode rod (every 3–5 years for most models). AEH offers an optional annual service plan. Most manufacturers provide 5–7 year warranties on components.

Yes. Heat pump systems are available in tank sizes up to 315L and above, which comfortably meets the demands of households of 5–8 people. For very large households, AEH can recommend appropriately sized systems or a dual-tank configuration. A correctly sized system recovers a full tank of hot water within 2–3 hours, ensuring continuous hot water availability even during high-demand periods.