Breakthrough Solar Heat Technology Transforms Hot Water Efficiency at Brooklyn House

Solar Heat Exchangers Delivers Future-Proof Innovation at Brooklyn House
Student accommodation today is about more than just a place to sleep. It is about designing resilient, energy-smart environments that support modern living, and Brooklyn House in Pretoria’s academic heartland sets that new benchmark. This development is home to 297 students and places sustainability at its core, with Solar Heat installing the project’s hot water system to support efficient and reliable energy use.

As the installation partner, Solar Heat Exchangers implemented a future-forward hot water solution in collaboration with Alliance Heat Pumps, working in perfect synergy. The project required a system that could meet high daily hot water demand while reducing operational costs and environmental impact.
The Engineered Solution Installed by Solar Heat

To meet the site’s rigorous requirements, we installed a high-capacity plant designed for maximum efficiency:
- 4 x 80kW Alliance Direct Heat Pumps: These units extract ambient heat from the environment, drastically reducing energy consumption.
- 2 x 15,000L Solar Heat Accumulators from Solar Heat Exchangers: Our in-house manufactured tanks capture and store heat, acting as a “thermal battery” for the building.
With a 320kW total heating capacity, this solution guarantees a consistent 60°C temperature within the accumulator tanks, ensuring hot water is available day or night, rain or shine.
The Innovation of Indirect Heating
The technical advantage of this installation lies in the combination of technologies. Instead of heating water directly, energy is transferred to our Solar Heat Accumulators, which capture and store the heat. This indirect heating method protects the longevity of the heat pumps and maintains peak energy efficiency over time.
To view the Technologies we offer, click here.
Measurable Results
The impact of this engineered system is significant for both the property owner and the residents:
- Up to 70% savings in water heating costs.
- Reliable, efficient service for hundreds of students, regardless of South Africa’s variable climates.
- Reduced strain on the local electrical grid.
- Space-saving design, tailored for high-density urban projects with limited plant space.
A Smarter Way Forward by Solar Heat
At Solar Heat Exchangers, we bring nearly forty years’ of technical experience to every project. By combining smart heat pump innovation with our durable, in-house manufactured accumulator technology, we deliver future-proof, energy-saving solutions backed by nationwide support and proven reliability.
For developers, engineers, and contractors, this installation represents a smarter way forward: durable systems, lower operational costs, and long-term sustainability.
Looking to optimise your next commercial development? Contact Solar Heat Exchangers for a technical assessment.
