Heat Pumps and Radiators

Much more efficient than traditional gas boilers, Air Source Heat Pumps (ASHPs) continue to grow in popularity as a viable renewable energy source to fossil fuels.

Traditional radiators can work in conjunction with ASHPs and deliver heat through pipework and into rooms in exactly the same way. In new build situations, the correct radiators can be specified at the outset in accordance with all the necessary designs and heating requirement calculations.

When it comes to using existing radiators following an ASHP installation, the situation can be more complicated. Typically, the radiators used with a gas boiler fired heating system need to accommodate flow temperatures of 65-70 degrees C. With ASHPs, a lower temperature flow of around 40-50 degrees C is required, highlighting the energy efficiency of ASHPs.

So the question is whether any existing radiators can still heat each room effectively. This may mean that, unless radiators were originally sufficiently oversized, upgrading to new models with larger surface areas may be required to achieve the required levels of comfort.

As the temperature of water passing through a home’s radiator system is lower when using a heat pump, the heat needs to be radiated into the living space more quickly. Aluminium radiators are the preferred choice for use with heat pumps. Not only is the material highly conductive, but heating up times are very quick and therefore a room will be warmed faster than with a traditional cast iron or steel radiator. Aluminium radiators can also be made from recycled materials, further reducing the environmental impact.

What our Customers Say

I can finally enjoy my home as intended. I can monitor and control the air conditioning from anywhere. This saves me wasting energy when I am away from home and the weather suddenly changes.

Claire Jordan, Homeowner.

What our Customers Say

For me it is about energy conservation and reducing our carbon foorprint...Air Craft has helped us achieve that.

James Miskin, Property Owner

What our Customers Say

We are delighted with the air conditioning installation and with the all round expertise that Air Craft demonstrated throughout this successful project,

Homeowners, New Forest.

What our Customers Say

Without prejudice, Air Craft have been outstanding throughout the process of changing the heating system in our home and we highly recommend them.

Kevin Dew, Redlynch.

What our Customers Say

It is a big step to move to a heat pump from a conventional system. Air Craft will design the most efficient and cost effective solution. Their installation staff care about their work and we believe we chose the best company for our heat pump.

Bob Ashworth, Homeowner.

What our Customers Say

We wanted the most comfortable indoor air environment and the ability to maintain a consistent temperature all year round. Air Craft delivered.

Mark Bettridge, Homeowner.

Knowledge Hub

Indoor Air Quality – What’s the issue?

“How attitudes to air quality and our health in general have changed,” says Darren Johnson, MD of Air Craft. “Indeed,...

Mixergy Hero of the Year 2022

Congratulations to Air Craft’s Managing Director, Darren Johnson who has been named the Mixergy Hero of the Year. The award...

Visit us at the NSBRC open days 23-24 September 2022

At the National Self Build & Renovation Centre’s open days on Friday 23 and Saturday 24 September 2022,  Air Craft...