Is underfloor heating cheaper than radiators?

Author: Sabrina Becker  |  Last update: Monday, March 23, 2026

The cost of running underfloor heating vs radiators If you're looking for cost-effective heating, then underfloor heating may be the best option for you. Underfloor heating is more eco friendly than using radiators and uses less energy, meaning they cost much less in the long run!

Is it cheaper to run underfloor heating or radiators?

Data suggests that underfloor heating can be 25% cheaper to run than traditional radiators when used in conjunction with a condensing boiler and up to 40% cheaper to run when used with a heat pump (EuRay 2005.)

What are the disadvantages of underfloor heating?

Let's take a look at some of the potential negatives of underfloor heating.
  • Installation time and costs in larger projects. ...
  • Difficulty in heating homes with high levels of heat loss. ...
  • Impact on existing floor heights.

How many radiators is underfloor heating equivalent to?

Unrivalled efficiency: Underfloor heating works at much lower temperatures compared to radiators because it effectively turns a large surface area (the floor) into one big radiator. The result is a system that uses between 15% – 40% less energy than a traditional radiator.

Does underfloor heating replace radiators?

Yes, you can. Underfloor heating is great heating solution for both new-build homes and refurbishment projects and replacing your home's radiators with a new UFH system is possible depending on the property's heat loss.

🔥 Underfloor Heating vs. Radiators: The Ultimate Guide for London Homes 🔥

Is it expensive to run underfloor heating?

Underfloor heating tends to cost more to run than traditional radiators. but they're supposed to be more efficient. This means that they're able to heat your rooms without having to work too hard. You can leave them on for shorter periods of time or keep them at a lower temperature.

Can you tee off a radiator for underfloor heating?

If the UFH system is connected to the radiators it can't be controlled individually. For all rooms greater than 15m2 you need separate primary flow and return pipes from the boiler or you can tee off the main central heating pipes (before the first radiator).

What is the life expectancy of underfloor heating?

No one wants to be pulling a floor up to replace something that they didn't install that long ago, after all! If you choose UFH for your property, you can expect it to last for around 50 years. Compare that to the average 12-year lifespan of a radiator, and you can see why it is so popular.

Do people still use radiators?

They may not be as famous as they once were, but they still have many advantages. Radiator heaters are easy to install and maintain, providing consistent and even heat throughout a room.

Is it cheaper to keep underfloor heating on all the time?

Basically, your home will heat up to a comfortable temperature faster. So, whilst it won't necessarily be cheaper to leave your underfloor heating on for a sustained period initially, it could lead to long-term savings.

What is the problem with underfloor heating?

There are many reasons why your underfloor heating could be causing you problems – it could be due to setup, a faulty controller, the flooring or even air that has become trapped in the pipes.

Can you put heavy furniture on underfloor heating?

The main risk of placing furniture on top of underfloor heating is that it can block the flow of heat, reducing the system's efficiency and potentially causing damage. This is particularly true for heavy, solid furniture such as sofas, bookcases, and beds, which can create a barrier between the floor and the air above.

What flooring is not suitable for underfloor heating?

Floors Not Suitable to Lay Over Underfloor Heating

You can't use solid wood floors with underfloor heating because the high heat can dry them out, causing them to shrink and creating gaps in the floor.

What is the cheapest form of underfloor heating?

Electric underfloor heating costs less to buy than water underfloor heating. You'll then need to factor in costs for any other materials such as insulation and screed. And when it comes to installation, electric systems will cost less than water systems because there is less work involved.

Do you need radiators upstairs with underfloor heating?

If a new extension is being built, many will choose to have wet underfloor heating installed during construction and keep radiators in the rest of the house. Alternatively, some will have UFH installed downstairs but finder it cheaper and more practical to leave radiators in place upstairs.

Is under floor heating worth it?

Underfloor heating prevents the circulation of dust particles that can cause allergies or sickness. Homeowners can also take advantage of the better humidity and a healthier environment free of dust mites and mould, which is especially helpful for people who experience allergies or respiratory issues.

Why did we stop using radiators?

Radiators are inefficient

It takes a lot of energy to heat water. The time to heat up the water, and cool down when you no longer need the heating, make radiators less efficient compared with surface heating.

What do Americans use instead of radiators?

Furnaces. The majority of North American households depend on a central furnace to provide heat.

What are the cons of radiators?

Radiator Cons
  • Slower to heat up: Because radiators circulate hot water, they can take a bit longer to warm up a room than furnaces and other systems.
  • Bulky design: Radiators can take up space in a room and may not fit everyone's aesthetic preferences. However, modern designs offer more sleek, compact options.

Should you turn off underfloor heating in the summer?

Benefits of Turning Off Underfloor Heating in the Summer

Moreover, operating your UFH system continuously during the summer may incur higher maintenance costs and strain the system, reducing its lifespan.

Why is my underfloor heating so expensive?

An electric underfloor heating system can be three to four times more expensive to run compared with radiators or a wet underfloor heating system. This is because electricity has a higher cost per kWh (kilowatt hour) compared with gas.

Is electric underfloor heating better than radiators?

As underfloor heating is more eco-friendly and energy efficient than radiators, and will not have to be turned up as high for a person to feel the benefits, they also offer a homeowner better running costs.

How much does underfloor heating cost to install?

On top of these main two factors, you'll also need to bear in mind materials, size of your property, equipment and labour costs. All of which mean that the average cost of installing an underfloor heating system is usually between £500 for a smaller installation and £8,000 for a larger project.

How high do radiators have to be off the floor?

Radiators should typically be mounted so that the foot of the radiator is positioned a minimum of 150mm from the floor – though anywere from around 100mm x 150mm should suffice if your space allows.

Can you run underfloor heating without a thermostat?

The short answer is no. Underfloor heating systems require a specific type of thermostat in order to function correctly.

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