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Revitalizing Luxury: Schweizerhof’s Bathroom Transformation

Implementation Date

March 1, 2024

By

Hotel Schweizerhof Luzern

City

Lucerne

story image

Description

For 150 years, the Hotel Schweizerhof located in the heart of the city of Lucerne, has been cultivating hospitality at 5-star level. The last bathroom renovation was 20 years ago and it was time to bring the 101 rooms up to date - also in terms of energy efficiency. Joulia-Inline 5P were integrated in a very smooth way, which, together with a stainless steel clean cover, also ensure easy cleaning and low maintenance. The remodelling of the bathrooms was carried out on a tight schedule, as the hotel was still partially open to guests. Thanks to the pre-installation and integration of the shower drains into the shower bases by GABAG AG, the finished bathrooms were handed over to the hotel in record time. The second hotel wing is due to be completed in winter 2025 and the remaining 44 bathrooms will also receive more than just a new coat of paint. Such projects are a pleasure and are only possible thanks to the co-operation of many competent partners.The technical director is very happy.

Impact & Result

The Joulia-Inline drain with 5 pipe heat exchanger is expected to reduce the heat demand for hot water by 30% in the chosen setting leading to savings of 1'340 kWh per drain and year. Summing up to a total demand reduction of 135'340 kWh per year for the hotel. And not included in this calculation are the reductions in the circulation and hot water storage system. ROI is above 8% and not yet including the marketing effects. Easy cleaning and low maintenance will add up on energy reduction.

Solution Spotlight

Reclaim valuable heat energy from used shower water by pre-warming the fresh water before it arrives at the mixer. The shower drain Joulia has to be connected to the freshwater. By means of a heat exchanger module, the heat energy of the used shower water is reused to warm the incoming cold water mains. In this way, the cold water arrives at the mixing valve up to 20°C warmer than before (from 10°C up to 30°C). Therefore, substantially less hot water is needed. Joulia-Inline is sold with either 3 or 5 heat exchanger tubes, and Joulia-Twinline with 6 or 10 which you can select depending on whether maximum efficiency or minimal installation height is more important.

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