Co Offaly-based heating technology manufacturer Grant Engineering has announced an €8m investment in its Irish manufacturing operations, expanding production capacity and launching a new integrated product range, as reported by RTÉ News.

The investment has supported a significant expansion of the company's production facilities at its headquarters in Birr and the development of a new Quick Recovery hot water cylinder range, specifically designed to work alongside Grant's Aerona R290 air source heat pump.

Grant says the two products form a fully integrated home heating system designed to meet growing demand for low-carbon heating solutions.

The expansion comes as demand for heat pumps continues to rise, driven by climate action targets, evolving building regulations, and government-supported retrofit programmes.

Founder Stephen Grant said: "We are seeing a clear shift in Ireland and across our wider markets towards sustainable heating technologies. This investment ensures we can continue to design and manufacture high-quality, innovative products here in Ireland that support that transition."

CEO Niall Fay said: "By developing cylinders specifically for use with our award-winning Aerona R290 heat pump, we are providing installers and homeowners with a fully integrated solution that delivers both performance and efficiency."

Fay added that the investment reflects the company's continued commitment to manufacturing and innovation while helping to meet growing demand for sustainable home heating technologies.

Grant's Aerona R290 heat pump uses a natural refrigerant with a low environmental impact and forms part of the company's strategy to develop more environmentally friendly heating systems.

Founded more than 45 years ago, Grant has grown from its base in Birr into an internationally recognised manufacturer employing more than 400 people, supplying markets across Ireland, the UK, Europe, and New Zealand.

Grant says the investment will strengthen its ability to design and manufacture next-generation heating technologies in Ireland while meeting increasing demand from domestic and international markets.

Get the full details of Grant Engineering's €8m manufacturing expansion here.