How much does a Grant heat pump cost?
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Credit: Grant Aerona R290 air source heat pump

When considering the installation of a new or upgraded heating system, questions around cost are often top of the list. Heat pumps have gained popularity in recent years for their efficiency, versatility and sustainability - but how much does a heat pump cost, and what factors have the biggest impact on price?

Size  

The size of the heat pump required is critical to performance and will directly influence the cost. If the output is too low, it will not adequately heat your home, and conversely, if your heat pump output is too large, energy will be wasted, increasing running costs. The Grant Aerona R290 range features five models in outputs from 4kW to 16kW, making it suitable for a wide range of different-sized homes. Correct sizing is essential and depends on several factors, including the size of your home and the quality of your home’s insulation.  

As part of our free-of-charge home heating design service, our technical specialists analyse house plans and undertake in-depth heat loss calculations to determine the heating requirements for each room of the property. This ensures the heat pump is correctly sized and specified, based on the heat load requirement for each room, and helps to demonstrate compliance with Part L of the building regulations and to calculate the hot water demand and radiator / underfloor heating requirements.   

Installation  

Installing a heat pump - whether in a new build or as part of a deep retrofit - requires the home to be ‘heat pump ready’. Good insulation is key to minimising heat loss and ensuring efficiency.  

New builds are generally constructed to modern insulation standards, which means they are well-suited for heat pumps. For existing homes, upgrades to attics, walls, windows, and doors may be needed. The Grant team commissions each Aerona R290 on site at no extra cost and provides a comprehensive customer handover pack so that homeowners fully understand the heat pump system.  

Efficiency  

The Grant Aerona R290 delivers highly efficient, sustainable, low-carbon heating and was designed for optimum performance in the Irish and UK climate. Unlike traditional heating systems, which generate heat, heat pumps work by transferring it. Once captured, this heat is circulated throughout the home via Grant Afinia radiators and/ or Grant Uflex underfloor heating systems. 

All models have an A+++ energy rating, are recognised by Quiet Mark, and achieve their rated outputs at -5°C air temperature and 55°C water flow temperature. The Aerona R290 uses the natural refrigerant R290, which has an extremely low Global Warming Potential of 3, helping to minimise environmental impact.  

The range is designed for use with the Aerona Smart Controller, enabling remote monitoring and management for optimum performance.   

Incentives  

In Ireland, the Sustainable Energy Authority of Ireland (SEAI) offers grants toward heat pump systems, as an attractive alternative to fossil fuel heating systems, with support available for both installations and assessments.

While the cost of installing a Grant Aerona R290 heat pump will vary depending on the property and system requirements, it represents a long-term investment in both your home and the environment. The Aerona R290 can help reduce energy bills, future-proof a property, lower carbon emissions, and improve year-round comfort. 

At Grant, we’re committed to helping homeowners heat their homes more efficiently and sustainably, now and into the future.  

Start your home heating journey by sending your house plans to heatpump@grant.ie or call 05791 26963 to speak to our team.  

Discover more about the Grant Aerona R290 air source heat pump range here.