High-Performance Heat Pump Retrofit in Foxrock, Dublin
Luxury Home Decarbonisation Without Compromising Comfort
A family in Foxrock wanted to replace their ageing oil heating system with a future-ready low-carbon solution that would reduce energy costs, improve comfort, and achieve a premium A-rated home without compromising the character of their 420m² property.
The home included 5 bedrooms, open-plan living spaces, a swimming pool and spa, underfloor heating, radiator circuits, and dedicated office and entertainment areas.
Following a full thermal assessment, GS Renewable designed and installed a bespoke renewable heating solution tailored to the home’s specific demands.
The Challenge
The existing system relied on an inefficient oil boiler, separate hot water cylinders, and limited heating controls, resulting in high running costs, uneven temperatures, and rising maintenance concerns.
The homeowners also wanted a system ready for future technologies such as solar PV and smart energy management.
The Solution
GS Renewable delivered a complete plant room redesign centred around a high-efficiency air source heat pump system, including:
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2 x cascade air source heat pumps
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500L high-recovery hot water cylinder
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Smart multi-zone heating controls
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Buffer tank and hydraulic separation
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Weather compensation controls
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Solar PV-ready infrastructure
The upgraded system now provides heating, hot water, pool heating support, and summer cooling.
Project Outcomes
Homeowner Benefits
Lower Running Costs
Annual savings of approximately €8,730.
Improved Comfort
Precise zoning delivers consistent comfort throughout the home.
Quiet Performance
Careful acoustic design keeps system noise exceptionally low.
Future Ready
Designed for solar PV, EV charging, and smart home integration.
Enhanced Property Value
The upgrade has transformed the home’s energy performance from C2 to A3, increasing its desirability and helping it compete with high-spec new builds of a similar size in the local market.