What is Underfloor Heating Systems?

In recent years, underfloor heating systems have gained popularity as a more ergonomic, efficient, and healthy alternative to traditional methods. In this article, you'll find answers to frequently asked questions about underfloor heating systems and learn the details of how they work.

How Does Underfloor Heating Work?

Underfloor heating systems operate by circulating hot water through pipes installed beneath the floor. These systems heat the floor, which then radiates warmth throughout the space. The process is similar to how the Sun warms the Earth through radiation.

What is the Heat Source?

Underfloor heating systems require a heat source, such as a boiler, heat pump, or furnace. Hot water is supplied from these sources to the pipes, enabling the heating process.

What Are the Advantages?

Underfloor heating systems offer several advantages compared to alternative methods:

• Energy Efficiency: Provides effective heating at lower temperatures.
• Comfort: Ensures uniform heat distribution.
• Safety: No visible heating elements, making it safe.
• Healthy Environment: Minimal air circulation and reduced dust movement.
• Design Freedom: Creates aesthetically pleasing spaces.
• Low Maintenance Costs: Durable and long-lasting.

Technical Details and Frequently Asked Questions

Flooring Materials

After installing the pipes, the floor is covered with a screed, followed by materials such as ceramic tiles, parquet, or stone. Ceramic and marble have higher thermal conductivity compared to parquet.

Dust and Health Concerns

Underfloor heating operates at an internationally standardized floor temperature of 26°C. At this temperature, air circulation is minimal, preventing dust from being stirred into the air and causing health issues.

Usage in Hard Water Areas

As a closed system, underfloor heating can function in areas with high lime content by using chemical additives.

Ideal Temperatures

• Floor Temperature: 24°C
• Room Temperature: 20°C – 22°C
• Water Temperature: 35°C – 55°C

PE-RT or PE-X Pipes?

PE-RT pipes are commonly used in underfloor heating systems due to their high temperature resistance and long lifespan. However, both pipe types should be oxygen-barrier-protected.

Comparison with Radiator Systems

While underfloor heating systems operate at 35°C – 55°C, radiator systems require 70°C – 80°C. Underfloor heating is thus more energy-efficient and economical, as it only heats the area in use.