Supplied by The Fourways Group, edited by Tanya Olckers

The leafy suburb of Parkwood has been a well-known part of Johannesburg for ages. From quirky shops and gorgeous homes, the suburb forms part of the area popularly known as The Parks. Parkwood on the Greens provides a tranquil city retreat for residents.

Piping at Parkwood on the Greens

Piping at Parkwood on the Greens. All images supplied by The Fourways Group

When it comes to large-scale residential developments, efficiency and sustainability are no longer optional, they’re essential. That’s why the newly constructed Parkwood on the Greens multi-apartment block turned to Alliance for a reliable, energy-saving hot water solution that meets the demands of multiple tenants without relying on costly backup elements.

 

Delivering smart, energy-efficient heating

With sustainability at the core of the project, Solar Heat Exchangers was brought on as the contractor for the water heating system, with AllyCiv Consulting Engineers designing the wet services. The goal? To provide a high-performance hot water system that delivers consistent supply while drastically reducing energy consumption.

Wet Service – ALLYCIV Wet Services Engineers

Hot water contractor Solar Heat Exchangers

Suppliers – Alliance & Solar Heat Accumulators

The installation: powerful and reliable

To ensure maximum efficiency, the project required:

  • 2 x ALLHTC135R134 high-temperature heat pumps
  • 2 x 9000L Solar Heat Accumulators (96kW element backup)
  • Ring main circulation pumps – Grundfos Magna 3
  • Heat pump circulation pumps – Wilo Medana

With a total heating capacity of 270kW, this system is built to effortlessly handle the building’s hot water demand. The result? A saving of up to 70% compared to traditional water heating methods, dramatically lowering operational costs while reducing environmental impact.

Overcoming installation challenges

Every large-scale installation comes with its own complexities, and Parkwood on the Greens was no exception. The limited access to the plant room area meant the heat pumps had to be disassembled and reassembled on-site, ensuring a seamless fit into the designated space. To enhance efficiency, custom ducting was installed to extract exhaust air upwards and out of the basement parking area, serving as a functional and aesthetic feature of the building’s design.

Additionally, the Solar Heat Accumulators were constructed on-site, a major advantage of using these units. This allows for flexibility in installation without compromising performance.

An energy saving hot water solution was needed

An energy saving hot water solution was needed.

A future-ready solution

Completed in 2024, this project is representative of Alliance’s innovation and sustainability. By integrating advanced heat pump technology and smart energy solutions, Parkwood on the Greens now enjoys a reliable, cost-effective hot water system that supports a greener future while delivering long-term savings.

As the demand for efficient, eco-conscious HVAC solutions grows, Alliance continues to lead the way by offering performance-driven, future-proof technology that benefits both businesses and the environment.

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