Underfloor heating in the bathroom – an effective combination of underfloor heating with a bathroom towel rail

Modern Bathroom Heating Systems

A modern bathroom today is not only a functional space but also a cozy relaxation zone. To ensure maximum comfort throughout the year, it is worth investing in an appropriate heating solution. Increasingly popular are innovative systems that combine convenience, aesthetics, and energy efficiency.


One of the most commonly chosen solutions is underfloor heating in the bathroom. This type of installation allows for even heat distribution across the entire floor surface, enabling users to enjoy pleasant warmth underfoot. Underfloor heating in a bathroom in an apartment or house works especially well in areas where people often walk barefoot and expect comfort at any time of the day.

Depending on technical possibilities and individual needs, one can opt for an electric underfloor heating system or a traditional water-based system. Electric underfloor heating in the bathroom is an excellent choice for apartments, particularly where installing a water-based system is difficult. This solution provides fast heating and easy temperature control, and its installation does not require major renovations.


Electric underfloor heating works well both in new homes and older buildings. Moreover, the absence of visible wall-mounted radiators preserves the minimalist character of the interior and allows for greater freedom in arranging the space. Thanks to this, underfloor heating not only makes the bathroom more comfortable but also more aesthetically pleasing.


Such solutions are also ideal for smaller spaces — underfloor heating in a small bathroom helps utilize space efficiently while increasing thermal comfort. In apartment blocks, heated bathroom floors are popular as they provide warmth without the need for large radiators

Ultimately, modern underfloor heating in bathrooms combines convenience, functionality, and aesthetics, making daily use of the space even more enjoyable. Installation costs for underfloor heating in bathrooms are also quite attractive.

Even better thermal comfort can be achieved by combining underfloor heating with a modern electric bathroom radiator — for example, in the form of a towel warmer. This combination allows the floor to provide pleasant warmth "from below," while the towel rail effectively dries towels.

Underfloor heating is not just a trendy feature; it is a convenient, comfortable, and energy-efficient solution. Wondering how to choose the right underfloor heating and towel warmer to achieve maximum comfort? By selecting modern electric underfloor heating or an electric floor radiator, you can create the perfect combination of warmth and convenience in your space.

 How does Electric Underfloor Heating Work?

Bathroom underfloor heating is a system in which heat is emitted directly from the floor, spreading evenly throughout the room. In modern interiors, electric underfloor heating in bathrooms is most commonly used, as it is practical and convenient for everyday use.


This type of installation consists of heating mats or cables placed under the floor. Underfloor heating in a small bathroom is particularly recommended because the system is easy to install and does not take up extra space. How does it work? It warms the floor, and the heat rises, providing comfortable warmth throughout the space.


Bathrooms most often have ceramic tiles, which conduct heat well, increasing the system's efficiency. However, installing electric underfloor heating requires proper floor preparation and insulation to minimize energy loss and maintain high heating efficiency.

Can Underfloor Heating Be Installed Under a Shower?

Installing underfloor heating under a shower can often be a very good solution. However, it depends on the type of shower tray used. Acrylic trays, usually mounted on a frame, limit heat transfer from the floor to the room. For this reason, composite or solid surface trays are increasingly chosen, as they work better with bathroom underfloor heating.

Their bottom part is solid and closely adheres to the floor, allowing more efficient heat transfer. The materials used conduct heat well and release energy to the room with minimal loss.

Therefore, electric underfloor heating under the shower works effectively and prevents the unpleasant feeling of a cold surface.The same principle applies if you opt for a walk-in shower area with a linear drain instead of a tray. In this case, the entire floor becomes part of the heated surface, so it should also be included in the electric underfloor heating system, ensuring full thermal comfort and a seamless look with the rest of the floor.

Where Should Underfloor Heating Not Be Installed?

It is generally not advisable to install underfloor heating under an acrylic shower tray. Due to its construction, this area will not transfer heat to the surrounding space, so installation there is ineffective.
Similarly, it is not recommended to place underfloor heating under a built-in bathtub. This applies to both electric and water-based systems, regardless of the bathtub material. Such fixtures block heat transfer from the floor to the room, so underfloor heating in these areas is not only pointless but may also lead to overheating and system damage.
For the same reasons, it is advisable to avoid installing electric underfloor heating in areas where fixed furniture is planned, such as cabinets without legs or other items placed directly on the floor. This prevents energy loss and ensures proper system operation.

Advantages and Disadvantages of Bathroom Underfloor Heating

Bathroom underfloor heating is currently one of the most comfortable and functional solutions. It is an ideal way to enjoy a warm floor and pleasant bathroom temperature year-round. Especially in the autumn-winter season, you will appreciate the benefits of underfloor heating — even heat distribution and no cold spots in the room.

Electric underfloor heating is also highly economical. Thanks to efficient heat transfer, it reduces energy consumption and lowers heating bills. Heat rises evenly, so thermal comfort is achieved even at lower air temperatures.

However, it is important to remember that electric underfloor heating involves higher installation costs — the investment may be several tens of percent more expensive than a traditional radiator system. Installation should be planned before finishing the floor, so the decision is best made during construction or a major renovation. Ceramic tiles, natural stone, or suitable floor panels work best, as they conduct heat effectively.

Although underfloor heating is generally reliable, there is always a risk of a malfunction that requires removing a section of the floor. Therefore, when designing the system, plan the placement of sanitary fixtures and furniture carefully, avoiding heavy items directly over the heating elements. This ensures the system operates reliably, providing comfort and warmth for years.

Is Underfloor Heating Enough?

Underfloor heating warms the floor surface, providing pleasant warmth underfoot. As a result, the air in the room may feel slightly cooler than with a traditional radiator system, but thermal comfort remains high.

One key factor affecting the efficiency of electric underfloor heating in the bathroom is room size. In small to medium bathrooms, up to about 6–8 m², underfloor heating is usually sufficient to maintain optimal conditions.

In such bathrooms, floor heat spreads quickly, ensuring even temperature throughout the room. In larger or irregularly shaped bathrooms, electric underfloor heating may not warm all areas evenly. In these cases, it is worth supplementing the system with an electric radiator, which provides quick heat, especially on cold mornings.

Small Electric Towel Rail as an Ideal Complement

The best thermal results are achieved by combining underfloor heating in the bathroom with a wall-mounted electric towel radiator that functions as a towel warmer. This combination ensures even and pleasant warmth underfoot and high comfort for daily use.

This solution allows the underfloor system to work in tandem with the towel rail, which quickly dries towels and small clothing items while maintaining a comfortable room temperature. Additionally, electric underfloor heating allows for a clean, uncluttered interior — no connection to the central heating system is needed, keeping the space organized, functional, and modern.

Combining underfloor heating and an electric towel rail provides better temperature control — the floor maintains long-lasting, even heat, while the radiator quickly responds to immediate needs for towel drying.
For bathroom electric underfloor heating, it is best to choose a towel warmer with low power, serving as a supplementary and energy-efficient device. This combination ensures full thermal comfort with minimal energy use, making the solution both practical and economical.

Here are the main reasons to choose a small electric towel warmer as a complement:

  1. Energy savings — the towel rail works at low power and only supports the underfloor system, keeping electricity consumption and bills low.
  2. Easy integration with underfloor heating — devices up to 300 W work perfectly with bathroom underfloor heating, ensuring optimal temperature and even heat.
  3. Convenience and comfort — modern low-power towel warmers are ideal for warming and drying towels, enhancing daily bathroom comfort.
  4. Aesthetics and functionality — combining electric underfloor heating with a compact wall towel rail maintains a clean, cohesive interior. Sleek devices do not disrupt the design while enhancing thermal comfort. 

This solution works well in both modern and classic interiors. Choosing an energy-efficient model adapted to your bathroom underfloor heating provides warmth, comfort, and style all year round.