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Optimisation of existing in-house heat production unit

Agriculture, viticulture
Craft Industry
Aid and care sector
[ Detailed version of the measure ]
Last update: 18/04/2024
  • Available tools
  • Possibility of assistance
  • Subsidies available

To make this measure more effective and tailored to the specific context of your company, we recommend that you first perform an overall analysis of your energy situation.

Ensuring efficient heating system performance in the workplace

The production of heat for premises and production processes represents a major cost factor. To reduce heating costs, This is why it is essential to ensure that the heating system operates correctly and is as economical as possible. This also includes all peripheral installations, heat production and distribution.

Definition of the company’s heating requirements

Heating system inspection

  • Determination of the different parameters of the current installation, for example: age, general condition, temperature level, consumption and associated costs, etc.
  • Energy evaluation of the heating system through the “Heizungscheck” inspection process by a qualified professional (heating engineer)

Taking your heating installation project one step further

  • Heat consumption analysis
    Track changes in heat consumption based on the latest energy bills, or meter data where applicable.
  • Cross-referencing consumption data with heat production indicators
  • Checking for leaks in the network

Implement measures to optimize the heating system

For heat production

For heat distribution

  • Circulation pump flow and return temperature control. Adaptation considering shutdown periods. => Further information from SuisseEnergie on “Reduce the circulating pump’s flow rate” 
  • Replacement of fixed-flow circulation pumps with energy-efficient, variable-flow pumps
  • Inspect and, if necessary, insulate the system’s various thermal components (pipes, valves, pumps, etc.)
    • Rule of thumb: cover pipes with an insulation thickness at least equal to the inside diameter, ideally twice the pipe diameter
  • Hydraulic balancing

For heat consumption

  • Use of room temperature control devices, e.g. smart thermostats. Additional information developed by SuisseEnergie “Set thermostat valves correctly before the heating season” and “Protect thermostat valves and limit the temperature“.
  • Reduce or switch off heating in unused areas, e.g. corridors, staircases, meeting rooms, plant rooms.
  • Regularly bleeding radiators. Further information developed by SuisseEnergie “Vent radiators in autumn“. 
  • Reduce the setpoint temperature in accordance with the minimum temperature recommendations in the ITM specification “Ventilation and air-conditioning systems”. ITM-SST-1814-1.pdf
  • Appropriate use of heating in the production halls, using air heaters, infrared heaters, etc. only when necessary.

Subsidy application

Government subsidies

Please note: any application for government or non-government subsidies must comply with the “incentive effect”, subject to compliance with the subsidy conditions.

  • “Fit 4 Sustainability” programme
    • The Fit 4 Sustainability programme co-finances an environmental audit + action plan on one or more of the topics selected by the company (energy, greenhouse gases, waste, water, etc.).
    • Assistance of up to 50 %, 60 % and 70 % of the fees for carrying out an environmental study (energy audit and/or carbon assessment) + detailed, costed action plan to reduce consumption/greenhouse gases (medium- and long-term investment, ROI, etc.) – open to SMEs and large companies (except for those required to carry out a statutory audit).
    • For questions:

N.B.: State subsidy cannot be combined for the same project.

Application for subsidies from electricity and natural gas suppliers

As of 2015, natural gas and electricity suppliers are obliged under the Commitment Mechanism to generate energy savings among their consumers. Since then, energy suppliers have been offering monitoring and advisory services as well as subsidy programmes for consumers to implement energy efficiency measures.

N.B.: Subsidies from suppliers can be combined with state subsidies for the same project.

Implementation aid

Contact us

I would like more information on:

  • Fit 4 Sustainability
  • Government subsidies
  • Support
  • Identifying partners

I would like more information on:

  • Klimabonus subsidies or photovoltaic and electromobility subsidy programmes
  • A technical aspect of the measure
  • A specific tool
  • A technical aspect of the site (404 link, etc.)

Contact Klima-Agence