Underfloor Heating and Heat Pumps: The Perfect Combination?

Why Underfloor Heating and Heat Pumps Work So Well Together

Air source heat pumps work most efficiently when delivering heat at lower flow temperatures — typically 35–50°C. Traditional radiators are designed to work at 60–70°C, which means they may need to be oversized to compensate when used with a heat pump.

Underfloor heating (UFH), by contrast, is designed to work at 25–45°C flow temperatures — which is precisely the range where heat pumps operate most efficiently. This makes UFH and heat pumps a naturally complementary combination.

How Underfloor Heating Works

Wet underfloor heating uses a network of small-bore pipes embedded in or beneath the floor, through which warm water circulates at low temperatures. The large surface area of the floor (compared to a radiator) means low-temperature water can still heat a room effectively.

Electric underfloor heating uses resistance wires and is generally not suitable for use with a heat pump (as it uses electricity directly for heat rather than benefiting from the heat pump's efficiency).

Benefits of UFH + Heat Pump

Retrofitting UFH with a Heat Pump

Retrofitting wet underfloor heating in an existing property is possible but more disruptive than new-build installation. Options include:

For existing properties, upgrading radiators to oversized low-temperature models is often a more cost-effective alternative to full UFH installation.

Is UFH + Heat Pump Right for You?

It's ideal if you're renovating, building new, or already have UFH. For existing properties with standard radiators, we'll assess whether upgrades are needed or whether the existing system can work effectively.

Contact Halo Heating on 01483 676108 for a full survey and honest recommendation.