Why Heat Pumps and Underfloor Heating Are the Perfect Match

As more homeowners switch to renewable heating, the combination of an air source heat pump and underfloor heating has become increasingly popular. In fact, many heating experts consider them to be the ideal pairing for energy-efficient homes.

But why do heat pumps and underfloor heating work so well together?

In this guide, we'll explain why they're the perfect match, how they improve efficiency and what benefits they can bring to your home.

How Do Heat Pumps Work?

Air source heat pumps extract heat from the outside air and use it to heat your home and hot water. Unlike traditional gas boilers, heat pumps operate most efficiently at lower flow temperatures.

Typical flow temperatures are:

Gas boiler: 65°C – 75°C

Air source heat pump: 35°C – 55°C

Because heat pumps deliver heat at lower temperatures, they work best with heat emitters that can provide comfortable warmth without needing high water temperatures.

This is where underfloor heating comes into its own.

Why Underfloor Heating Is Ideal for Heat Pumps

Underfloor heating spreads heat evenly across the entire floor surface and operates at temperatures between 35°C and 45°C.

This lower temperature requirement matches perfectly with the operating characteristics of an air source heat pump.

As a result, the heat pump doesn't have to work as hard to maintain comfortable temperatures, improving efficiency and reducing energy consumption.

Improved Energy Efficiency

One of the biggest advantages of combining a heat pump with underfloor heating is improved system efficiency.

Lower flow temperatures allow the heat pump to achieve a higher Coefficient of Performance (COP), meaning more heat is produced for every unit of electricity consumed.

This can help reduce running costs while maintaining a comfortable indoor temperature throughout the year.

More Comfortable Heating

Unlike radiators, which concentrate heat in one area, underfloor heating provides gentle, even warmth across the whole room.

Benefits include:

No cold spots

Consistent room temperatures

Improved comfort underfoot

Quiet operation

This creates a more comfortable living environment, especially in open-plan spaces.

More Space and Better Design Freedom

Because the heating system is hidden beneath the floor, there are no radiators taking up valuable wall space.

This allows greater freedom when:

Positioning furniture

Designing kitchens and living areas

Creating open-plan layouts

Many homeowners appreciate the clean and uncluttered appearance that underfloor heating provides.

Lower Running Costs

When properly designed and installed, underfloor heating and heat pumps can provide excellent efficiency.

Factors that affect running costs include:

Home insulation levels

Thermostat settings

Heat pump efficiency

Floor coverings

Property size

Although every home is different, low-temperature heating systems generally offer significant efficiency advantages over traditional high-temperature systems.

Ideal for New Builds and Renovations

Heat pumps and underfloor heating are commonly installed in:

New Build Properties

Installing underfloor heating during construction is straightforward and maximises efficiency.

Extensions

Kitchen extensions and open-plan living areas are ideal spaces for underfloor heating.

Existing Homes

Modern low-profile underfloor heating systems make retrofit installations possible in many existing properties.

Can Heat Pumps Work with Radiators?

Yes.

Heat pumps can work with radiators, but larger or upgraded radiators are often required to compensate for the lower water temperatures.

Underfloor heating, however, naturally operates at these lower temperatures, making it one of the most efficient heat emitters available.

Is the Combination Worth It?

For many homeowners, the answer is yes.

The combination of an air source heat pump and underfloor heating offers:

✅ Excellent energy efficiency

✅ Lower operating temperatures

✅ Improved comfort and even heat distribution

✅ More wall space without radiators

✅ Quiet and low-maintenance operation

✅ Reduced carbon emissions

✅ A future-proof heating solution

Heat Pumps and Underfloor Heating Installation Across Liverpool, Wirral and Cheshire

At 21 Degree Heating, we specialise in designing and installing air source heat pumps and underfloor heating systems across Liverpool, Wirral, Warrington and surrounding areas.

Whether you're planning a new build, home extension or heating upgrade, our experienced team can provide expert advice and tailored solutions to suit your property.

Get a Free Quote

Thinking about installing a heat pump and underfloor heating?

Contact 21 Degree Heating today to arrange a free survey and discover how a low-temperature heating system can improve comfort and efficiency in your home.