Energy efficiency in boiler room renovation. Case study: Hotel TRH Ciudad de Baeza

The Hotel TRH Ciudad de Baeza has undertaken the remodelling of its fan-coil heating and DHW production system by installing high performance condensing boilers from the manufacturer Ygnis. The incorporation of these boilers has a very positive impact on the performance of the heating and DHW production units, as demonstrated by the consumption results obtained after two full seasons in operation. As illustrated below, the reduction in consumption brings with it a significant reduction in the hotel’s energy bill. The economic impact is such that in the space of 1.5 years, the installation investment has been paid for, taking the six-month heating period as the basis for calculating the amortisation.

The hotel had two 4,000-litre tanks for DHW, heated by four electric resistance units of 18 kW each with a total output of 72 kW. These tanks used to supply the fan-coils circuit for heating and the DHW circuit. The existing installation was located in a basement, with little available space and no flue gas outlet, thereby preventing the installation of any type of boiler irrespective of the fuel used, unless a completely new boiler room was built.

The possibility of choosing renewable sources was dismissed because the peculiarities of the TRH hotel, an ancient 16th Century Carmelite convent next-door to the Church of the Hospital de la Concepción. Its location in the historic centre of Baeza, a UNESCO World Heritage city, made any structural reform to the building completely unfeasible. The lack of flat roofs and terraces meant that it was impossible to use the rooftop for the installation of solar panels. Nor was the option of using biomass viable due to the lack of space required for its management. Read more…

Aina Servent Abadia
Product Manager, Ygnis

Article published in: FuturENERGY June 2015