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Radiant Panels FAQS

Radiant Panels FAQ’s

What heating solutions do you recommend for large spaces?

Radiant ceiling panels from Zehnder provide an optimum energy-saving heating system for large indoor spaces such as gymnasiums, sports halls, warehouses, and production and assembly halls.

This type of space heating solution can reduce energy consumption in large spaces by around 44%. The space heating, ceiling systems are effectively used for warehouse heating or to control the indoor climate in large production halls. Zehnder’s space heating solution with radiant heating panels can be installed as part of an already existing space heating system or as a complete ceiling heating solution for any large warehouse, production and assembly hall.


How the radiant ceiling panels work?
Zehnder radiant ceiling panels work on a fundamental natural principle that is identical to the way in which the sun produces warmth. The heating method is as simple as it is effective: the radiant panels are heated by hot water and give off energy to the room. This energy is converted into heat only when it comes into contact with the human body or other objects.
Can radiant panel be used for cooling as well?
Yes, what is used to heat buildings cheaply and efficiently can also be used to cool them. Cold water flows through the cooling ceiling. Because people and objects in the room have a higher temperature, they radiate their heat to the ceiling. At the same time, the warm air inside the room rises and flows along the ceiling, where it gives off its heat to the cooling ceiling. The cooled air flows back down into the room.
What types of radiant panels does Zehnder offer?
In this range Zehnder offers following panels: ZBN, ZIP, Carboline, Como, Flatline and ZRP (heating only).
What is the minimum mass flow rate for ceiling panels?
To maintain the performance given in tables, a turbulent flow must be ensured in the tubes within the panel. This minimum water flow depends on the lowest system temperature. In the case of heating, it corresponds to the return temperature. In case of cooling and combined cooling/heating, it corresponds to the cold water flow temperature. If the minimum water flow per tube is not reached, a reduction in performance of approximately 15% can occur.