75 years of Egokiefer: Tradition and Innovation

H e a t i n g Te c h n o l o g y a n d
Sanitary Equipment
Therm X2 panel radiators
lower costs by up to 20%
With the Therm X2, Kermi GmbH has managed to significantly improve the efficiency of their
valve-design panel radiators – with an energy saving effect of up to 11%, heating time reduced
by 25%, costs reduced by up to 20% and lower CO 2 emissions.
At the same time, the Therm X2 impresses with dynamic performance
and optimal thermal comfort. In accordance with
the current standards, only a small proportion of the rated
heating load is required during controlled operation, which
accounts for up to 90 to 95% of a heating period. As a result,
the flow (mass flow) is significantly reduced and the average
surface temperature drops significantly. As only the upper
part of the radiator is heated, this often gives the incorrect
impression that the radiator is defective or inoperative.
Connection: serial instead of parallel
Kermi valve-design panel radiators solve this problem with
the X2 technology. The innovative and patented way in
which they work takes both energy saving aspects and thermal
comfort considerations into account. Whereas on conventional
multi-layer radiators, a parallel flow is directed
through all of the plates, the Therm X2 features a serial flow
layout. In controlled operation the front plate is heated preferentially,
and its output is perfectly sufficient for this operating
mode. As a result, a higher average surface temperature
is generated in comparison to the conventional technology,
with up to 100% more comfortable radiated heat.
Heating time reduced by up to 25%
The rear plates remain cooler, and during controlled operation
they act as a heat shield to the wall thanks to their low
emission of radiated heat, thus increasing the efficiency of
the radiator. They are only heated up when greater heating
output is required, at which point they deliver a high convective
heating output and contribute to efficient heating of the
room. At the same time the X2 technology delivers a more
dynamic performance and reduces heating times by up to
25%. This results in a significant reduction of overall energy
requirements. As a result, an energy saving effect of up to
In controlled operation, the Therm X2 initially heats up the entire front
plate of the serial-flow panel radiator; while the cold heating plate at
the back acts as a shield between the warm front plate of the radiator
and the external wall.
11% can be achieved – an order of magnitude previously
thought to be unattainable.
Saving money – and the environment
In conjunction with the valve inserts which are pre-adjusted
in the factory it is possible to make further savings of up to
20% of the energy costs for the heating circuit pump. The
potential annual savings that can be made with the Therm
X2 in comparison to conventional panel radiators can be
calculated quickly and easily with the aid of the X2 energy
savings calculation tool at www.thermx2.de. As well as the
savings in terms of heating costs, another coincidental benefit
is the lowering of CO 2 emissions from the heating system. «
Kermi valve panel radiators blend harmoniously with any surroundings
and contribute to a great feeling of warmth and comfort with their
innovative X2 technology – whilst at the same time delivering energy
savings of up to 11%.
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