Hall and workshop heating

Adaptations for heating halls and workshops

Company halls and workshops, often characterised by large open spaces and high ceilings, present a particular challenge when it comes to installing an energy-efficient, targeted heating system. The ideal heating system for halls must therefore be able to heat the different work areas individually and produce heat at the right height.

Halls and workshops have specific heating requirements due to their size and use. It is therefore essential to carry out a thorough requirements analysis before installing a new heating system.

Definition of heating requirements for halls and workshops

Analysis of the current situation

Determine the parameters of the existing installation, e.g. age, general condition, centralised or decentralised system, air exchange, energy consumption and associated costs, etc.:

• List planned renovation work (insulation, extension, replacement of doors and/or windows, etc.)
• Detail the use of the building, e.g. storage hall or workshop, etc.
• Evaluate the heating requirements of the hall/workshop and determine whether the needs should be considered as a whole or only by zone
• Identify physical workspaces and office-type workstations
• Is the heating system centralised or decentralised?
• Identify any new requirements related to heat production
• Analyse heating consumption
• Identify heat losses or unnecessary heating waste in buildings

Waste heat recovery

Identify potential sources of heat that could contribute to space heating, e.g. industrial heat (furnaces, steam, etc.), ventilation systems, compressors (compressed air system), etc.

Durability of the heating system

Plan heating production using renewable energies, e.g. heat pumps, solar thermal heat, etc.

Identifying the solution and checking the feasibility of the project to change the heating system

Definition of the solution

• Based on the requirements analysis, define the solution in collaboration with a competent engineering office.
• In addition to the main heat production unit, consider recovering waste heat and combining the unit with another technology, such as solar thermal heating.
• Heat production:
  • Central or decentralised gas, oil, wood or electric (infrared, heat pump) heating
  • Heat distribution using heating water or direct air heating
• Heat distribution:
• Warm air heating: can be connected to central heating or heating with decentralised units, usually fixed to the ceiling. New systems make it possible to install decentralised heat pumps for warm air heating.
• Infrared heating (suspended radiant panels): the heating panels can be installed where the need for heat is greatest (e.g. workstations in a storage hall), allowing zone heating. Low-temperature systems using heating water or electric systems are preferable, as they are more efficient than warm air heating.
• Underfloor heating using low-temperature central heating, ideal with a heat pump. Zone heating is possible with different heating circuits laid in the floor, but the installation costs are high.

Verification of the proposed installation or modification of the heating system in a hall or workshop with regard to operating permits

When adapting existing facilities, and particularly when setting up new facilities, check the nomenclature for classified establishments.

Drawing up specifications and requesting tenders for the heating installation project

Subsidy application

Government subsidies

Fit 4 Sustainability programme

The Fit 4 Sustainability programme provides co-financing for environmental audits and action plans on one or more topics selected by the company (energy, GHG, waste, water, etc.).
Aid of up to 60%, 70% and 80%, depending on the size of the company, for the fees associated with carrying out an environmental study (energy audit and/or carbon footprint assessment) and a detailed, costed action plan to reduce its consumption/GHG emissions (medium- and long-term investments, ROI, etc.) – open to SMEs and large companies (except those that must carry out studies required by the environmental authorities, including mandatory energy audits)
For questions: Luxinnovation

SME Packages – Sustainability:

• Financial Aid for small and medium-sized enterprises covering up to 70% of eligible costs for the implementation of a project aimed at reducing the environmental impact. The eligible project budget must be in a range from 3.000 € to 25.000 € excl. VAT.
• For more information:
  • Chambre des Métiers for craft companies
  • Chamber of Commerce for businesses in the non-craft sectors

Aid for environmental protection

The law of 8 December 2025 on the renewal of the aid scheme for environmental and climate protection provides for the granting of investment aid to SMEs and large companies established in Luxembourg, with an establishment authorisation, and carrying out projects that contribute to environmental or climate protection.

This aid is intended to support:

• Energy production from renewable sources
• Renewable hydrogen production
• High-efficiency cogeneration
• Storage (electricity, heat, biogas) under specific conditions

The following maximum rates apply:

Regardless of their size, companies can receive aid upon request if they meet the conditions described in Article 8 of this law, provided that the aid exceeds €50,000 for SMEs or €100,000 for large companies.
They may also participate in regular calls for projects, which will be announced below when they become available. When aid is granted through a competitive process, the aid rate may reach up to 100% of eligible costs.
The General Directorate – State Aid and Company Financing will verify the eligibility of applications.

• For support or questions regarding the process, please contact Luxinnovation.

SME aid scheme – Aid for miscellaneous investments

Subsidies for small and medium-sized businesses, up to 10 % or 20 % of the amount of miscellaneous investments aimed at promoting the modernisation and competitiveness of the Luxembourg economy.

• Verification of company eligibility and costs: Ministry of the Economy (Department for Support to SMEs)
• Any questions?
• House of Entrepreneurship of the Chamber of Commerce
• Chambre des Métiers (Chamber of Skilled Trades and Crafts)

N.B. State subsidies cannot be combined for the same project.

Application for subsidies from electricity and natural gas suppliers

Since 2015, natural gas and electricity suppliers have been required to make energy savings for consumers under the obligation scheme. Since then, energy suppliers have been offering support and advice, as well as subsidy programmes for consumers to implement energy efficiency measures.

The following suppliers offer this service for companies:

• Enoprimes Enovos + SUDenergie
• SUDenergie
• Sudstroum

N.B. Supplier subsidies can be combined with any state subsidies for the same project.

After completion of the works

Every heating system requires maintenance

• Follow the system installer’s instructions

• Designate a person responsible for checking that the system is operating correctly

• Check operation and temperature requirements once a year