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A high-capacity Rinnai heat pump hot water system delivers reliable supply, lower running costs, improved efficiency and built-in redundancy for Eurobodalla Hospital.
The Eurobodalla Hospital development is a new healthcare facility built to serve the growing Eurobodalla region on the NSW South Coast. It comprises of a North Wing and South Wing across 186 beds, three operating theatres, two birthing bath suites and a commercial kitchen serving 330 meals per sitting.
Background
Completed in June 2026, the hospital needed a hot water solution capable of meeting the intense, concentrated demand typical of a healthcare facility, where beds, theatres, birthing suites and kitchen operations can all draw on hot water simultaneously during peak periods.
Challenge
As with most new healthcare projects, available plant room space was the primary constraint. Commercial heat pump technology generally requires a larger physical footprint than traditional gas systems, so accommodating a solution of sufficient capacity required close, early planning between Rinnai and the project's hydraulic consultants. Both parties needed to ensure the equipment could be integrated without compromising the building's layout.
Solution
To meet the hospital's efficiency and running cost objectives, Rinnai specified a commercial heat pump hot water system built around four CHP040VP Commercial Heat Pumps, each rated at 40kW. These were paired with ten G2 Tech stainless steel storage tanks at 1000L each, providing the bulk hot water reserve needed to handle simultaneous demand across both wings. Additionally, two 315L quick recovery stainless steel tanks, fitted with 3 x 6kW elements, to rapidly replenish supply during short, sharp spikes in usage such as theatre changeovers or birthing suite use.
Outcome
This combination gave the hospital both the storage capacity to handle sustained daily demand and the rapid recovery needed for its highest priority areas. The heat pump-based system also delivers significant efficiency gains and reduced running costs compared to traditional gas or electric resistance heating, while the redundancy built into having four independent heat pump units and twelve tanks across the system helps ensure reliable hot water availability, even during maintenance. Together, the solution increased the hospital's hot water capacity while contributing to its broader sustainability outcomes.
By combining commercial heat pumps with substantial hot water storage and rapid recovery capability, Rinnai delivered a reliable, energy-efficient solution that meets the hospital's peak demand requirements while supporting long-term operational and sustainability goals.