... and gilded baroque columns, and letting yourself fall into the plush upholstery of an armchair. The curtain is raised: “Così fan tutte” by Wolfgang Amadeus Mozart. “Thus do they all” – the literal translation of the opera title – could also apply to the heating plant: the National Theatre in Prague equipped its system with two Hoval UltraGas 1440D boilers. This is a popular choice when technically modernising an older or even historic building.
Cutting edge technology is at work inside the UltraGas boiler: the aluFer heat exchanger, an exclusive product from Hoval. The integrated heat exchanger reclaims up to 15 percent of consumed energy. This protects the environment – as well as the finances.
Considering the National Theatre’s positive experience with this system, the Estates Theatre in Prague and the Prague State Opera also installed Hoval UltraGas boilers. Energy-efficient technology is a Hoval tradition – as traditional as opera in Prague theatres. In addition, Hoval has set the stage for sustainable energy solutions of the future.