A new generation thermal system is born
47.5% reduction in CO₂ emissions thanks to a technological leap
During the winter of 2017–2018, the hotel completely renovated its heating plant, taking a decisive step toward energy efficiency and sustainability.
The new system is based on three large thermal storage tanks of 1,600 litres each, allowing heat to be managed far more intelligently than with traditional boilers. These tanks operate in “layers”: each works at a different temperature, optimising the recovery of available energy. The hottest tank is powered by the boilers; the second uses heat recovered from the air-conditioning units; the third uses heat from the compressors of the kitchen’s cold rooms. In this way, no heat is wasted and every degree of energy is reused.
This solution significantly lowered operating temperatures, improved efficiency, and reduced consumption, resulting in a 47.5% decrease in CO₂ emissions.
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Recognition for climate protection
In 2019, the Swiss Cleantech Agency (ACT) recognizes the efficiency measures for climate protection at Hotel International au Lac, Lugano
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Explanatory diagrams
Explanatory diagrams (2017) of the boiler/plant room and heat recovery by Eng. Siegfried Renner
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Concept variants
Concept variants set out by Roberto Schmid (2017)
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Descriptive document
Descriptive document on the refurbishment of the boiler/plant room, set out by Roberto Schmid (May 2017)
pdf / 349 KB