Air-source heat pump has less than a tenth of annual carbon emissions of boiler, study finds

A new study from Stiebel Eltron UK has found that a domestic air source heat pump emits 90% lower carbon emissions than a traditional gas boiler annually, along with lower running costs.

The 12-month study, analysing performance in a four-bedroom home, found the manufacturer’s WPL-A 07 Premium air-source heat pump produced 250kgCO2e, whereas a conventional gas boiler in the same dwelling would emit over 3,500kgCO2e.

Stiebel Eltron reports that the study, found that the WPL-A 07 had a COP (Coefficient of Performance) consistently exceeding 4.2, while maintaining a comfortable indoor temperature above 20 deg C throughout the year.

The study also found the heat pump cost £750 a year to run, which is estimated to be some £250 less than a traditional boiler in the same setting, with the unit’s reduced energy consumption contributing to long-term savings on utility bills.

The manufacturer monitored the performance of the heat pump using real-time reporting and data analytics via the company’s monitoring software.

Managing Director Mark McManus said:

There is a growing onus being placed on technologies which will significantly reduce carbon emissions which come from homes and buildings. These results show that a heat pump does exactly that. Consumers who are exploring the possibility of a heat pump can have confidence that it will deliver huge carbon reductions, maintain a constant and comfortable indoor temperature, and perform efficiently while bringing cost savings at the same time.

Stiebel Eltron notes that its technologies are designed for both residential and commercial use, offering efficient heating, cooling, and hot water solutions.

Mark added:

As the environmental benefits become more prominent and the need for more carbon efficient homes becomes greater, demand for heat pumps is only going to increase in the years to come. At Stiebel Eltron, we’re looking forward to meeting this demand, equipping both consumers and installers with the technology, and knowledge, to transition towards greener energy solutions.

The firm recently partnered with solar panel provider Solarwatt to deliver renewable energy-powered homes across Britain, with the partnership offering a holistic approach to the implementation of renewable technologies to maximise energy efficiency and cost savings.

The company also expanded its operations into the Irish market in February, with a view to delivering renewable heating technologies and driving greener homes across the country.