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Roscetti_2026_Springer_EEDAL24_Heating-with-AC_AM.pdf
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02/06/2027
Book chapter

Heating with air conditioners : Swiss case studies

  • Bush, Eric Topten GmbH, Zurich, Switzerland
  • Hepp, Steffen Topten GmbH, Zurich, Switzerland
  • Roscetti, Andrea ORCID Istituto per l’architettura sostenibile e la tecnologia (IAST), Accademia di architettura, Università della Svizzera italiana, Svizzera
  • Deppeler, Lorenz EKZ Power Utilities of the Canton of Zürich (EKZ), Switzerland
  • 2026
Published in:
  • Proceedings of the 12th International Conference on Energy Efficiency in Domestic Appliances and Lighting (EEDAL'24). - Cham - Springer Nature Switzerland. - 2026, p. 587-605
Air conditioners
Best available technologies
Energy efficiency requirements
Energy label
Heat pumps
Market transformation
English Direct electric heating systems (in short: electric heating systems) consume a considerable amount of electricity in many countries. The potential for savings by replacing electric heating with heat pump heating systems is huge as electric heating systems consume a good 3 times more electricity than heat pumps. Electric heaters are often installed as storage heaters in the individual rooms of a building and do not require a central heat supply. When replacing electric heating systems, it is therefore usually necessary to retrofit a central heat distribution system, which is very expensive and therefore unpopular. The option of air-to-air heat pumps, in which the heat is delivered directly into the various rooms using individual appliances, is still little known in Switzerland (in contrast to other countries). There is already a mass-market proven and cost-effective technology for this: air conditioning units that are operated in heating mode. In this way, the high costs of centralised heat distribution can be saved. This study analysed the possible applications as well as the strengths and weaknesses of air conditioning units for heating. The analysis of a dozen Swiss case studies showed that all users were satisfied with the heating solution provided by air conditioning units. In particular, the heating output, comfort and low noise emissions were rated favourably. The option of replacing electric heating with air conditioning units should be presented to a wider public as part of information campaigns. The spread of air-to-air heat pumps could be accelerated particularly effectively with the launch of rebate programmes. In Germany, air conditioning units for heating have been subsidised since the beginning of 2024 as part of the programme “Bundesförderung für effiziente Gebäude”.
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  • English
Classification
Architecture
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green
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https://n2t.net/ark:/12658/srd1336371
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