Do air source heat pumps work with standard radiators? Your questions answered

white living room with white cast iron radiator
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Are new air source heat pump radiators required when replacing a boiler with this renewable technology? It's a good question to ask before an inappropriate system is installed and the job becomes more costly than anticipated. 

When heating your home with an air source heat pump it is all about low flow temperatures and if you have low temperatures then you need a larger surface area. Heat pumps have a lower flow temperature of around 35°C to 45°C, where as a traditional radiator system warmed using gas boiler central heating would have flow temperatures of around 75°C. 

David Hilton

David is a renewables and ventilation installer, with over 35 years experience, and is a long-standing contributor to Homebuilding and Renovating magazine. He is a member of the Gas Safe Register, has a Masters degree in Sustainable Architecture, and is an authority in sustainable building and energy efficiency, with extensive knowledge in building fabrics, heat recovery ventilation, renewables, and also conventional heating systems. He is also a speaker at the Homebuilding & Renovating Show. 

Passionate about healthy, efficient homes, he is director of Heat and Energy Ltd. He works with architects, builders, self builders and renovators, and designs and project manages the installation of ventilation and heating systems to achieve the most energy efficient and cost effective outcome for every home.