Hall heating systems for today. Tomorrow. The day after tomorrow.

Hall heating systems from KÜBLER.
Smart heating for industry, commerce, and municipalities

Hall heating systems from KÜBLER are a sustainable investment in future security and energy efficiency. Anyone planning a new hall heating system today is laying the foundation for the coming decades—with solutions that function reliably, comply with GEG regulations, and are economically viable. And they can be flexibly adapted to the dynamic challenges of the future.

KÜBLER's intelligent hall heating systems are designed to meet these requirements. They already impress with their maximum efficiency. Through the energy-flexible use of different energy sources such as electricity, gas, or hydrogen. And through the possibility of making your heating operation 100 percent CO₂-free at any time.

Whether today, tomorrow, or the day after tomorrow, you will always benefit from a consistent, comfortable indoor climate, sustainably low operating costs, and the assurance that you are well positioned for the future. Take the economical path toward CO₂ neutrality with KÜBLER.

More about KÜBLER's pioneering hall heating systems

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Infrared hall heating systems – better for the climate. Better in almost every hall.

Infrared hall heaters They excel where conventional systems reach their limits: after all, they use the natural heat principle of the sun and are therefore the ideal heating principle for high-ceilinged rooms. Infrared hall heaters do not heat the air, but directly heat the hall floor and the work area—quickly, precisely, and energy-efficiently. In our explanatory film, you can find out why this is particularly advantageous in halls: from low investment and operating costs to short heating times and targeted heating of individual work zones.

In a nutshell

The advantages of infrared hall heating systems in detail

Among the various technical options for heating industrial buildings, infrared is the heating principle with the most convincing advantages—and is superior to conventional systems in many respects. We have summarized the most important ones for you briefly and concisely:

1

Extremely energy-efficient in operation

Infrared rays do not heat the air, but rather surfaces, objects, and people directly. This means that only the areas where heat is needed are heated. And there is no heat loss under the hall ceiling, which significantly reduces energy consumption.

2

Quick heat without long preheating times

While hydraulic systems such as heat pumps require long heating times and therefore have to run throughout the entire heating season, dark radiators can be controlled flexibly. They are shut down outside working hours and provide quickly noticeable heat at the start of the shift. In other words, „heat on demand“ – another factor contributing to the high energy efficiency of these hall heating systems.

3

Zone heating for flexible use

Not every hall is always used to 100% capacity. Infrared systems allow different areas to be controlled individually and heated only where work is actually being done—this also activates the savings turbo and reduces energy, costs, and emissions.

4

Pleasant indoor climate without dust swirling around

Infrared is the natural heating principle of the sun and is perceived as particularly pleasant. Because it does not generate warm air, there are no drafts and no dust swirls – a major advantage for people and machines in workshops, production halls, sports halls, and event venues, but also for stored goods in logistics halls.

5

No unused heat reservoirs under the hall roof

The heat radiation acts directly at floor level in the areas where people work, without valuable energy escaping unused as warm air up to the hall ceiling.

6

Flexibility of energy sources

The new energy-flexible multi-energy IR hall heaters (Fair.AIdH) can use different (renewable) energy sources such as electricity, biogas, hydrogen, or other (biogenic) gases simultaneously in a single device. 100% reliable despite the volatile availability of green solar or wind energy and perfectly designed to meet the challenges of the energy transition.

7

Future-proof and GEG-compliant planning

KÜBLER's energy-flexible and highly efficient infrared hall heaters meet legal requirements. They are a long-term, secure investment in the future – far beyond the years 2045 and 2050, which Germany and the EU have set as their targets for CO₂ neutrality.

Businessman in a suit in an industrial setting

Thomas KÜBLER

Managing Partner

Energy converter. Since 1989.

The idea behind energy-saving hall heating systems from KÜBLER

What we started 36 years ago would probably be celebrated today as an eco-startup. Back then, we set out to design better, more energy-efficient, and sustainable concepts for heating halls and industrial buildings. We have been very successful in doing so in countless projects for tens of thousands of customers.

Why? Because we are more interested in the spatial world of "Halle" than anything else.

Because what works well in offices and residential buildings with room heights of up to three meters loses its effect in halls.
Because warm air rises. But the heat is needed at ground level. And because there must be better solutions than simply directing air flows back down again.
Because this swirls up even more dust than is absolutely necessary. The warm air rises again - and in the end far too much energy is wasted for far too little benefit.

What makes your hall special

Every hall is different. Don't be surprised if we ask a lot of questions during our first contact. We really want to understand what you need and take a holistic view of your hall building. Then we'll make sure you get our best ideas and concepts: for your energy-saving hall heating.

Innovation and technology leader

Awards

We are rather proud of our recognition as an innovation and technology leader in the field of „energy-saving and climate-friendly hall heating.“ Our tireless commitment to innovation, quality, and sustainability has earned us a number of awards.

Innovation and technology leader

Machen Sie die Energiewende zu Ihrem Vorteil – durch vielfach preisgekrönte Innovation

KÜBLER entwickelt seit über 35 Jahren Technologien, die Maßstäbe setzen – vielfach ausgezeichnet als Innovations- und Technologieführer im Bereich energiesparender und klimafreundlicher Hallenheizungen.

Doch unser Antrieb geht weit über hervorragende Technologien hinaus: Wir machen die Energiewende zu einem wirtschaftlichen Erfolgsfaktor für Ihr Unternehmen. Denn mit unseren klugen Hallenheizungen sparen Sie nicht nur 50 bis 70 Prozent CO₂, durch die Einsparung kompensieren Sie auch Ihre hohen Energiekosten – und erfüllen zukunftssicher die gesetzlichen Anforderungen von morgen. So wird innovatives Hallenheizen zu Ihrem Wettbewerbsvorteil.

Jetzt mehr erfahren

Modern metalworking factory with machinery and storage racks

How to heat in compliance with GEG

Infrared hall heaters or heat pumps?

The Heating Act aims to accelerate climate protection and therefore stipulates the obligation to use renewable energies for heating halls and other buildings. However, it is a common misconception that this is only possible in compliance with the law if a heat pump is used.

In practice, infrared hall heaters have proven themselves to be the ideal technology for heating halls for decades due to their many advantages. The decentralized heating systems transfer heat directly to the work areas in a highly efficient and flexibly controllable manner. And because energy efficiency is the first step and arguably the most important pillar of the energy transition, the law exempts gas-powered high-efficiency technologies such as infrared hall heaters from KÜBLER, which have been proven to achieve at least 40 percent energy savings, from the obligation to use renewable energies. A important information For anyone who wants to renovate existing buildings to be GEG-compliant in terms of energy efficiency.

KÜBLER's intelligent, energy-flexible infrared heating systems offer forward-looking solutions for new and existing buildings that will also meet the high demands of tomorrow. They can be operated flexibly with electricity, gas, or hydrogen, are at least as efficient as heat pumps, and combine this with the many other advantages of decentralized infrared hall heating systems:

Highly efficient heat transfer in the usage area
Flexible and controllable according to requirements, just like light
Individual zone heating
Fast heating times
Naturally pleasant and consistent indoor climate
Dust-free without drafts

Low space requirement under the hall ceiling
No restrictions on hall use or conversion
Easily adaptable to new usage profiles
Hall roof available for PV use
Highly functional even at sub-zero temperatures
No climate-damaging coolants

Conclusion:

Heat pumps can be an excellent solution for heating homes, offices, or other low-rise buildings in a climate-friendly way. However, this type of heat generator is not particularly suitable for large halls with their enormous dimensions and ceiling heights. In these buildings, technologies that have been specially developed for their demanding heating requirements are the best choice. Infrared hall heating systems are the most popular of these.

Large modern industrial hall with metal structure and lighting

HeizWerk – Rent hall heating systems instead of buying them

Save costs and CO₂ immediately without investment: Rent hall heating

Heat as a Service – HeizWerk is the innovative rental model (off-balance) for KÜBLER's intelligent hall heating systems: no investment, no depreciation, no impact on operating results.

The transparent service package includes all relevant services from a single source—including planning, installation, operation, control, maintenance, and energy management. In many cases, this is perhaps the easiest and fastest way to benefit from the advantages of modern hall heating systems. And it is very lucrative: KÜBLER's highly efficient infrared hall heating systems usually reduce energy consumption so significantly that your operating costs decrease despite the rental payment. This allows you to increase your liquidity, boost your bottom line, benefit from the superior advantages of state-of-the-art efficiency technology, and reduce your CO₂ footprint—an important factor in your ESG reporting.

For you, this means:

Immediate CO₂ and cost savings from the first year of operation
multiple award-winning heating and control technologies
individual transparent contract design
Long-term planning security and maximum flexibility

Everything from a single source, and you only pay for the heat you use. Learn more about heating plants and the possibilities.

Heating plant

Successful projects

References and customer testimonials

For our blue planet

Carbon-savings - since 1989

Since 1989, KÜBLER has implemented more than 20,000 highly efficient heating projects. They achieve energy savings of up to 70 percent. This reduces the burden on the climate by many millions of tons of CO₂. And every day, this number grows.

0 tons

To the CO₂ savings calculator

KÜBLER News

Discover

What's new? What is important? What will help you? Our news, blog articles and online training courses will keep you up to date. It's all about your industrial & commercial buildings, decarbonization & energy transition, legislation & politics, technology & efficiency. Do you have any questions? Then simply contact Contact us on.

December 17, 2025

How to regulate your hall heating during the Christmas break - and how to cleverly counter rising energy prices

Christmas is once again approaching surprisingly quickly - and, unfortunately, one or two challenges are on the horizon. From 3G and 2G plus to the next increases in energy prices. Congratulations if you have already converted your hall heating to an economical system from KÜBLER. This is a really good decision in many respects.
Dec. 9, 2025

Guide to dark radiators – Heating halls in an energy-efficient and cost-effective way

What is a dark radiator (really)? In everyday life, the term "dark radiator" is often used interchangeably with infrared radiant heaters. It is also often used to refer to electric infrared heaters. People even talk about electric dark radiators. From a technical point of view, however, this is not really correct. Dark radiators in the true sense of the word are gas-powered infrared heating systems that bring heat into halls in a particularly efficient way. To do this, […]
Dec 3, 2025

Energy-efficient infrared hall heating systems: How to reduce heating costs

In comparison, fan heaters rely on the distribution of warm air. This method causes the air in the hall to rise, with the warmest areas being directly under the ceiling. It therefore takes significantly longer for the work area to warm up, which leads to higher energy consumption. This difference makes infrared heating systems particularly energy-efficient, […]
October 21, 2025

Heating Act (GEG) for hall heating systems

The decision on the Heating Act (Building Energy Act - GEG) has been made, but the questions remain. But there is no need to worry: the legislator has provided for generous transition periods, technological openness and pragmatic, affordable regulations for the gradual move towards climate-neutral heating by 2045. Dr. Jens Findeisen explains what you need to know now when heating commercial and industrial buildings
October 7, 2025

Infrared hall heating or heat pump?

Existing buildings: No obligation to use renewable energies On the road to a CO2-free future, energy efficiency is perhaps the most important pillar of decarbonization—because, as „low-hanging fruit,“ efficiency measures to reduce CO2 are usually easier, faster, and more cost-effective than substitution with renewable energies. That is why high-efficiency solutions such as infrared hall heating systems from KÜBLER, which have been proven to [...]
September 8, 2025

Buy dark radiators: Convincing technologies at a glance

Save energy costs and protect the environment: Dark radiant heaters are among the most efficient heating systems for halls that you can buy. But which infrared system is right for you? We give you an overview.
August 20, 2025

Rent infrared hall heating. Four reasons why this is the solution for businesses right now.

The search for suitable optimization potential in energy-related processes in industrial and commercial companies is not always easy for energy management. Especially as measures in efficiency technologies and renewable energies cost money and the budget is often lacking. Many - ecologically and economically important - measures then fall by the wayside. But does that have to be the case?
August 13, 2025

How to find the ideal hall heating

Do you want to get the most out of your new hall heating system, save energy costs and be prepared for the environmental laws of the future? Then it is advisable to consider a few tips before you buy. Find out which ones in this article.
25 Jul 2025

Heating halls: 6 heating systems at a glance

Hot air, panel heating or infrared? There are many different heating systems to choose from for heating halls. This article will give you an initial overview of the six most relevant systems.

Economic efficiency factor for hall heating

Let's take a look at the heating...

... like your machinery

The work preparation department plans when and where the heat is actually needed. On demand, so to speak. But please do so with the best performance and maximum efficiency.

... like a lighting system

They dim down when no work is being done. And "illuminate" the hall zones at the start of the shift with the heat intensity that is required there.

...like a vehicle

The way you drive determines fuel consumption. With a well thought-out control system, you can keep your heating system on the ideal line. And also achieve significant energy savings.

Today, with over 30 years of experience, we can supply hall heating systems that consume up to 70 % less energy than conventional heating systems. For you and your employees, this means a well-tempered working environment without dust turbulence and draughts - environmentally friendly and at significantly lower costs.

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Rely on technologies that deliver measurable savings and full flexibility in function – efficient, reliable, and future-proof.

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Frequently Asked Questions

Frequently asked questions about hall heating systems

Politically promoted, often problematic in practice: heat pumps quickly reach their limits in halls. Properly understood, the GEG leaves room for technological openness—and this is precisely where infrared hall heating systems come into their own.

What is the best indoor heating system?

The „best“ hall heating system is the one that best meets your requirements. The usage profile and, of course, the size of the hall and type of building determine the technology. However, the height of the hall ceiling is the most important factor. From a room height of around 4 meters, infrared hall heating systems, especially dark radiator technology, are almost always the best and most efficient solution. The reason: Infrared is the ideal heating principle for high rooms because it works directly below in the work area. This prevents unnecessary heat loss under the hall roof and saves a lot of energy.

Why? Because conventional air heating systems or heat pumps with air blowers have to fill the entire room volume with hot air due to thermals (warm air rises like a balloon) – an expensive and difficult approach to control, especially in high halls. Infrared dark radiators also score points in halls thanks to other important advantages: they ensure a pleasant, draft-free, and dust-free working environment and, similar to light, can be controlled extremely flexibly. This means heating as needed with short heat-up times and the option of heating different work zones differently.

What types of hall heating systems are available?

Halls can be heated in different ways. There are basically two approaches: systems that heat the air (e.g., warm air heating systems with or without heat pumps) and systems that generate radiant heat—primarily infrared hall heating systems.

The most important types include:

Gas infrared dark radiator – the ideal and proven, particularly efficient technology for commercial buildings, industrial buildings, and municipally used buildings.

Hybrid hall heating systems – KÜBLER's energy-flexible infrared systems (Fair.AIdH) can also be operated with a mix of different energy sources (e.g., gas, electricity, hydrogen). Hybrid systems that deserve their name, because unlike combinations of two different systems that are also called „hybrid,“ Fair.AIdH infrared heaters combine everything in a single system. This keeps the solution efficient, technically streamlined, and very economical.

Electric infrared hall heaters – ideal for heating halls with 100% CO₂-free energy today, especially when operated with cost-effective PV electricity.

H₂-ready hall heating systems – Hydrogen is becoming increasingly important in industry as a substitute for natural gas. Forward-looking and, given the right supply situation, already usable in Fair.AIdH systems today.

Hot air heating systems in combination with heat pumps or other heat generators – As the name suggests, these systems heat with warm air. They are therefore significantly less efficient in tall buildings.

The best solution depends on the room height, the usage profile of your hall, and the energy source you want to use. From a height of around 4 meters, energy-flexible infrared dark radiators are usually the most efficient, economical, and future-proof choice with excellent usability.

What is an infrared dark radiant heater?

An infrared dark radiant heater is a particularly efficient form of hall heating. It traditionally works with gas (e.g., natural gas, liquefied petroleum gas in natural gas quality, or biogas), which is burned in a closed burner tube. The heat generated is emitted into the room as infrared radiation—without a visible flame, hence the name „dark radiator.“.

The key advantage: when infrared rays hit a surface, it heats up immediately. This effect is similar to the natural heating principle of the sun and can also be compared to light. Areas that need to be heated are essentially „illuminated“ – just like with a lamp. This has enormous advantages over conventional heating systems, as conventional devices primarily heat the air, which then rises and takes a very long time to warm up the work area on the hall floor.

Dark radiators therefore score points for their fast heating times, a very pleasant, draft-free room climate, and demand-based heating operation: different temperatures can be set depending on the work zone. And where no work is being done, the dark radiator heating system can simply be turned down. This also ensures that no energy is wasted.

Why are heat pumps in industrial buildings not nearly as efficient as in offices or residential buildings?

Although heat pumps can be very efficient in principle, they quickly reach their limits in large industrial or commercial buildings. The reason is quite simple: due to their dimensions, large buildings have completely different heating requirements than multi-story buildings such as apartments, offices, or hotels, where ceiling heights are usually „capped“ at 2.50 to 3 meters. As pure heat generators, heat pumps require hydraulic heat transfer systems such as underfloor heating to transfer heat into the hall. They can also be equipped with a warm air blower as an air-to-air heat pump. Neither of these is ideal in halls. Underfloor heating systems are inherently slow, have difficulty reaching the required temperatures, and restrict the use of the hall floor. Hot air blowers have the disadvantage of stirring up dust and forming expensive unused heat pockets under the hall ceiling. In addition, a significant part of the efficiency is lost due to the necessary storage and piping systems.

The consequences are long heating times, reduced efficiency, and a lack of flexibility in terms of switch-on and switch-off times, heating individual areas of the hall, and using the hall floor. In addition, large halls often require many units, which further increases investment and operating costs. Infrared hall heaters work much more efficiently here because they bring heat directly to where it is needed—to the hall floor and to the people.

What role do ceiling height, hall size, and usage play?

Ceiling height: The higher the hall, the more important it is to have technology that provides heat directly below in the occupied area without any losses. From a room height of approx. 4 meters, infrared dark radiators are almost always the most efficient solution. While fan heaters have to fill the entire room volume with warm air from top to bottom (warm air is lighter than cold air and rises due to physical laws), infrared dark radiators use natural electromagnetic waves that only release their heat when they hit the hall floor and are absorbed. You know this from the sun. The space heated in this way indirectly transfers its heat to the ambient air, acting almost like a second heater – this is also referred to as bidirectional heat. In this way, only the area up to about 2 meters above the hall floor is heated – the part above it, and thus the largest part of the room volume, remains unaffected. This is what makes infrared dark radiators so efficient.
Hall size: Size and floor plan influence the required heating output and the number of heating units. Infrared systems can be planned modularly and thus optimally designed for any hall dimensions.
Use: Whether in production, warehousing, events, or sports—usage determines where and how much heat is needed. With infrared, individual areas can be flexibly controlled as heating zones so that heating is only used where it is needed.

Thanks to their flexibility, ceiling heating systems can be optimally designed for almost any industrial building. The interplay of factors such as height, size, and use determines how your industrial heating solution can be configured in a particularly economical, legally compliant, and future-proof manner. Our experts take these conditions into account and develop a tailor-made concept for your building.