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Easy transition to low-temperature heating with fan-assisted radiators

307034
GreenHome
Comfort and innovation
More and more homeowners are replacing traditional heating systems with low-temperature and ultra-low-temperature solutions. The goal is clear: achieve fast, flexible, and sustainable heating. When installing a modern boiler or heat pump, an ultra-low-temperature radiator can help meet all these requirements. Fan-assisted radiators offer an easy replacement for older radiators that may no longer perform efficiently when system temperatures are reduced.

Why choose a fan-assisted radiator?

Upgrading an existing heating system is an excellent way to reduce energy consumption while improving indoor comfort and preparing a building for the future. Installing a heat pump, in particular, is a major step towards more sustainable heating.

Heat pumps operate most efficiently at low system temperatures. A heat pump-compatible radiator such as the Ulow-E or Ulow-E2 is specifically designed to maximise performance at low flow temperatures while delivering heat quickly and effectively. In most cases, the Ulow-E can be connected to existing pipework, eliminating the need for costly modifications to the heating network. This allows for a straightforward installation, even while the building remains occupied. As a result, alternative low-temperature heating solutions such as underfloor heating are not always necessary.

Ulow-E: low-temperature heating with fan assistance

The Ulow-E is an ultra-low-temperature panel radiator specifically designed to work efficiently with heat pumps and condensing boilers. These modern heat sources achieve their highest efficiency when operating at lower water temperatures. When a radiator's flow temperature drops below 45°C, the natural convection effect decreases significantly. This is because the temperature difference between the radiator surface and the surrounding air becomes smaller, resulting in weaker upward airflow.

To compensate for this, low-temperature radiators such as the Ulow-E use integrated fans to enhance convective heat transfer. The fans automatically activate when the return water temperature reaches 28°C. This increased airflow boosts heat output by up to 60% compared to a standard radiator while significantly reducing heat-up times. The result is a heating system that can operate at lower temperatures and lower energy consumption levels without compromising comfort.
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A fan-assisted radiator for renovation projects

The Ulow-E is an excellent solution for renovation projects. It can replace existing panel radiators without requiring any modifications to the pipework. The radiator offers six connection options. The standard bottom-right connection can easily be converted to a bottom-left connection by rotating the radiator 180 degrees. In addition, four side connection options are available, allowing installation on existing pipework using either side or diagonal connections. Mounting brackets are included as standard.

Another advantage is ease of use. The Ulow-E is controlled using a standard thermostatic radiator valve, just like a conventional panel radiator. As a result, replacing existing radiators with a Ulow-E requires no changes to the user experience.

A fan-assisted radiator for every space

Given the wide variety of buildings that can benefit from heating system upgrades, versatility is essential. This applies not only to installation flexibility but also to usability and design. The Ulow-E features a classic panel radiator design that blends seamlessly into virtually any interior. Its compact dimensions allow valuable space savings without sacrificing heat output. The integrated fans operate at an ultra-low noise level of just 25 dB. This ensures quiet operation without disturbing occupants. Finally, the Ulow-E includes an easily accessible power switch, allowing the fan function to be turned off whenever desired, for example during the summer months or at night in a bedroom.
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