Coolawin Rd, Northbridge

Property type: Residential
Services Installed:
Pool Heating

Spa Heating

Underfloor Heating

Home Automation

Air Conditioning
Energy Source:
Vertical Ground Heat Exchanger
Size (kW): 30

PROJECT UNDER CONSTRUCTION

Client:
Contractor: RHCS (Design & Installation)

Project Scope: Design and installation of an advanced, energy-efficient mechanical system for a high-end Northbridge residence, incorporating geothermal heating, radiant underfloor heating, zoned VRF climate control, and premium pool/spa heating solutions.

Key Project Highlights

Eco-Conscious Geothermal Heating System
- 7 x 120m deep vertical ground heat exchangers harness renewable geothermal energy for highly efficient heating and cooling.
- Reduces environmental impact while ensuring long-term energy savings for the residence.
Whole-Home Comfort with Radiant Underfloor Heating (RDZ UFH)
- Seamless underfloor heating system installed throughout, delivering silent, even warmth with exceptional energy efficiency.
- Ideal for luxury living, eliminating cold spots and enhancing thermal comfort.
Custom Climate Control via Mitsubishi Water-Cooled VRF
- Multiple independent zones of Mitsubishi’s advanced water-cooled VRF system provide personalized temperature management for different areas of the home.
- Combines precision performance with superior energy efficiency.
Year-Round Pool & Spa Enjoyment
- Hydronic pool heating system maintains perfect swimming conditions regardless of outdoor temperatures.
- Dedicated spa heating ensures rapid warm-up and consistent luxury performance.
High-Performance Domestic Hot Water (DHW) System
- 1000-litre DHW storage guarantees ample, uninterrupted hot water supply for large residential demands.
- Designed for efficiency, integrating smoothly with the geothermal and VRF systems.

Project Success

Sustainable Innovation – Geothermal and hydronic systems minimize carbon footprint without compromising luxury.
Tailored Comfort – Zoned climate control and radiant heating elevate everyday living.
Reliability & Efficiency – High-capacity systems ensure durability and low operational costs.

Conclusion

RHCS are currently delivering a sophisticated, energy-smart mechanical solution for the Coolawin Rd residence, blending geothermal sustainability with premium comfort technologies. This project exemplifies how cutting-edge HVAC design can enhance luxury living while prioritizing efficiency and environmental responsibility.

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OUR TRUSTED PARTNERS

When we moved into our house last year, just as winter was setting in, we realised we needed to retrofit 2x 30yr old gas boilers for our underfloor heating system. After trying to get quotes, install times from other vendors, Radiant were able to come out on short notice and inspect our system / requirements. Sizing the system was quite complex given the type of piping used in original build, the layout of our house, expected usage of each section and the potential heat loss from single pane windows.
Within a few weeks, Radiant were on on site installing 2x new electric heat pumps including the relocation of DHW units / buffer tanks to make better use of our internal space. Once installed, our house was nice and warm throughout the depths of a Southern Highlands winter and the efficiency of the unit was much better, and I continue to gain efficiencies through minor adjustments (timer settings, buffer tank temperatures etc) which I discuss with the Radiant team. Been a pleasure to work with Jimmy and Josh

Ben McCallum

Stop before you do anything with your home heating or cooling, or specifically geothermal or with heat pumps, talk to these guys. We've had a very complicated geothermal heating system, multiple heat exchangers, underfloor heating, pumps and also water cooled AC.
Jimmy and the team were the only ones who knew absolutely everything that needed to be done to get it working properly, efficiently. Not only that they explained everything along the way and made sure the system and us as the users were operating it and it was properly setup. My only wish is that we'd engaged Radian Heating and Cooling earlier in the process it would have saved so much time and effort.
These guys solved lots of problems others couldn't and set the system up much better and with more reliability. They are always ready to answer a quick question and very responsive. I rarely write reviews but these guys really deserve the review and you'll be very happy you engaged them. Thanks Jimmy and team !

James Spenceley

Schiavello Construction (NSW) was engaged by Waverley Council to finalise the construction of the Bondi Boot Factory Adaptive Reuse Project at Bondi Junction. Schiavello Construction (NSW) contracted the Geothermal ground heat exchanger header pipework scope works to RHCS, whom provided specialist input into the design of the pipework system to allow for an efficient and defect free installation.

The team at RHCS was a pleasure to deal with during construction & would recommend them for any future projects

PROJECT UNDER CONSTRUCTION

Key Project Highlights

Project Success

Conclusion

Arcare, Aranda

Esplanade, Mosman

Ellerston, NSW

The Boot Factory

Ben McCallum

James Spenceley

Graeme Ingram - Construction Manager

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