Our energy-efficient infrared heating systems began with the Optima product line. Since then, we have been continually innovating this successful series.

The latest generation is called OPTIMA plus because there is more to it than ever before. What has remained since the beginning is its powerful performance. And its talent as an efficiency all-rounder. Whether your ceilings are 3.50 m or 35 m high: the OPTIMA plus infrared heating solution works perfectly in both.


A special fire burns in the OPTIMA plus radiant heater. The burner technology specially developed for this high-end heating system ensures an absolutely homogeneous preparation of the gas-air mixture.


Biltz Icon, das die


72 % usable energy*

Today's demands for maximum energy efficiency have a new gold standard: radiation efficiency. OPTIMA plus can offer you up to 72 %. A crucial advantage
because every percentage point helps protect the environment - and improves your operating result.

Icon mit aufsteigendem Pfeil, repräsentiert die Wirtschaftlichkeit von KÜBLERs OPTIMA plus Dunkelstrahlers wegen seines ROI 2 bis 5 Jahre


ROI in 2 to 5 years

Your investment in OPTIMA plus pays for itself in just 2 - 5 years. And the effect on your operating result is even quicker: your company's liquidity is increased in the first year by the savings in energy costs. It is good to know that investing in modern heating technology pays off so fast.

Blätter Icon, repräsentiert die Umweltfreundlichkeit von KÜBLERS OPTIMA plus Dunkelstrahlers Icon mit aufsteigendem Pfeil, repräsentiert die Wirtschaftlichkeit von KÜBLERs OPTIMA plus Dunkelstrahlers


70 % fewer CO2 emissions

Depending on the project, up to 70 % in energy can be saved compared to conventional technologies. And for you that means up to 70 % fewer energy costs and CO2 emissions. In addition, the homogeneous flame pattern guarantees even fewer hotspots and thus minimizes the formation of nitrogen oxides. The NOx value is significantly reduced.

* Radiation efficiency measured according to DIN EN 416-2 by DVGW research center at the Engler-Bunte Institute of the University of Karlsruhe (TH), reference 08/290/3311/957


No question about it: a stunning design makes the OPTIMA plus radiant heater stand out. Yet its design is more than just a pretty face – as you will see, it follows strict functional principles.The outer shell of OPTIMA plus is a closed, fully insulated system. It encloses the burner and radiant tube, ensuring that as little valuable heat as possible escapes upwards.


The infrared heating series OPTIMA plus is available in all RAL colors. With no extra charge for the basic color RAL 5015.

Farbe RAL 3020 für KÜBLER Hallenheizungssysteme

RAL 3020

Gelbe Farbe RAL 1003 für KÜBLER Hallenheizungssysteme

RAL 1003

Beige Farbe

RAL 1013

Weisse Farbe für KÜBLER Hallenheizungssystem

RAL 9010

Blaue Farbe RAL

RAL 5015

Basic color

Blaue Farbe 5005 für KÜBLER Hallenheizungssysteme MAXIMA und OPTIMA plus

RAL 5005

Grüne Farbe RAL 5005 für KÜBLER Hallenheizungssysteme MAXIMA und OPTIMA plus

RAL 6026

Schwarze Farbe RAL 9017 für KÜBLER Hallenheizungssysteme

RAL 9017


Infrared technologies made by KÜBLER consistently follow one principle: economy. This is why OPTIMA plus is available in six different models. We implement only the heating solution that meets your requirements – and tailor it precisely to your specific facility conditions.

Lagerhalle, die energieeffizient durch eine Infrarotheizung erwärmt wird.