Why is underfloor heating not good?

Author: Garland Metz  |  Last update: Sunday, April 13, 2025

Yes, underfloor heating has a few disadvantages, such as higher installation costs, longer warm-up time compared to radiators, and potential restrictions on furniture placement.

What is the downside of underfloor heating?

The most significant disadvantage of classical floor heating is the “sluggish” response time when heating rooms. The pipes of the heating system are located about 5-10 cm below the top layer, so the heat must first pass through the screed, which is several centimeters thick.

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 is the life expectancy of underfloor heating?

How long will an underfloor heating system last? The pipes used for underfloor heating must have a projected lifespan of 50 years, in accordance with industry standard DIN 4726; however over 100 years is entirely possible.

Underfloor Heating — The 2 Big Questions

How often does underfloor heating go wrong?

It is true to say that electric underfloor heating is a very simple heating cable and very rarely goes wrong if it is installed and set up correctly. Most issues that do arise can be narrowed down to settings changes on the thermostat or simple electrical or lifestyle changes.

Is it worth it to get underfloor heating?

Is underfloor heating worth it for your home? Underfloor heating is a more sustainable way to keep your home warm and cosy. With systems available to suit every budget and all project types and its energy-saving technology to help you save money on your bills, specifying a Warmup system for your home is a great idea.

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.

Can you lay carpet over underfloor heating?

Yes. Carpet works well with underfloor heating, as carpet naturally holds in heat, so you wouldn't have to use as much electricity or hot water in a room with carpet as it will hold the heat for much longer.

Can I put a dog bed on underfloor heating?

Also, when placing items such as dog beds or thick rugs over underfloor heating, you must exercise caution because they can reduce heat distribution, cause discoloration of floor coverings (e.g., carpets), and create hotspots, which can eventually lead to fire outbreaks in cases where carpets are used as floor ...

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 not warming up my room?

If your UFH system is not warming up a room, this may be due to a number of variables such as the room thermostat setting, the wider system settings, the flow temperature in the system, or the thermal resistance of your floor covering.

Why is underfloor heating so slow?

The level of insulation in the room and the floor is probably one of the single biggest factors that will affect the heat up times of your Underfloor Heating.

Why does underfloor heating fail?

The most likely cause being a leak and subsequent air bubbles in the system. These are most likely to occur in the pipes between the boiler and the manifold.

Which rooms should have underfloor heating?

If you are researching the feasibility of electric underfloor heating for your home, you may see a lot of examples that simply talk about underfloor heating in bathrooms or kitchens. However, electric underfloor heating can be used within any room, even those with a carpet floor finish.

Can underfloor heating get too hot?

The higher heat output of the floor may overheat the room, making it uncomfortable. The manufacturer of the floor finish should be consulted to ensure compatibility with the chosen temperature before making any changes to the thermostat settings.

What rugs are not suitable for underfloor heating?

Rugs made with natural fibres are better rugs for underfloor heating than those made with synthetic materials. Some rugs made of synthetic materials can melt if exposed to high temperatures for an extended period.

What type of floor is best for underfloor heating?

The best flooring for underfloor heating is one that efficiently transfers heat from the UFH to the surface of the floor. Hard surfaces like stone or ceramic tiles, or engineered wood, offer the best heat transfer as they are the most thermally conductive, but many other options work well.

Does underfloor heating cause dry air?

Moreover, underfloor heating systems help maintain a stable air humidity balance within indoor spaces. Unlike conventional heating methods that often dry out the air, underfloor heating prevents excessive dryness, contributing to a more comfortable and healthier atmosphere.

Is vinyl flooring ok with underfloor heating?

Both water and electric underfloor heating systems are suitable under vinyl floors. The temperature of the heating system with vinyl should not exceed 27°C.

Do you need floor insulation if you have underfloor heating?

As UFH designers/suppliers/installers, we would recommend insulation in every case and, not just in the floor. We design systems to produce more than enough heat output to satisfy the needs of any property, however it's the insulation in the property that keeps that heat in where it's required!

Does underfloor heating damage wood floors?

Solid wood floors and underfloor heating

It's advised though that underfloor heating does not exceed 27°C with solid wood above it as moisture levels in the wood change. Changes in heat lead to changes in the moisture level of the wood which causes flexing and changing of the solid wood.

What are the downsides of underfloor heating?

Yes, underfloor heating has a few disadvantages, such as higher installation costs, longer warm-up time compared to radiators, and potential restrictions on furniture placement.

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.

How long should underfloor heating last?

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.

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