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For weeks, experts were looking for a strange whistling sound in Hünfeld. A radio reporter finally made the crucial discovery – now the mystery has been solved.
Hünfeld – For months, a mysterious whistling sound could be heard in downtown Hünfeld, as the city reports. Now the cause has been found: A heating system in the basement of an apartment building and commercial building at Großenbacher Tor caused the whistling.
Reporter solves puzzles about whistling sound in Hünfeld city center
The noise could be heard again and again, especially in the area of Lindenstrasse and Josefstrasse. It appeared irregularly, lasted only a few seconds – and then disappeared again. That's exactly what made the search so difficult. In the past few weeks, the Hünfeld public utility company checked several buildings, including a transformer house on Lindenstrasse. Without success. Even the heating system, which later turned out to be the culprit, was checked – nothing was noticeable at first.
“We are very happy that the noise could be localized,” said Mayor Benjamin Tschesnok (CDU). The city had already commissioned a noise measuring station, which was to be set up in May. It can now be canceled again.
Olaf Brinkmann was particularly persistent in his search for the sound. The East Hesse reporter from Radio FFH was made aware of the problem by a local resident and searched for clues several times. A few days ago he even arrived with a team from the Würzburg-Schweinfurt University of Technology. The 800 Hertz sound was to be captured and located using an acoustic camera. That didn't work – but the video that was subsequently published on the radio station's social media was the decisive turning point.
A number of people wondered where the noise could have come from. A reference to a similar case in Dortmund provided the right approach: a gas heater there had also caused complaints. However, the sound could be heard permanently in Dortmund, not just irregularly for a few seconds like in Hünfeld. That made the search more difficult.
Brinkmann finally made the crucial observation on Friday: Whenever the whistle sounded, more smoke came out of the chimney of a house at Großenbacher Tor. “It reminded me of grandma’s kettle with a whistle,” the reporter wrote. This enabled the noise to be localized.
The responsible heating engineer from Hünfelder Land, who maintains the system, is now working on determining the cause. Peace should return soon. Incidentally, the residents of the house themselves did not notice the whistle.
Speaking of peace: In the The Hünfeld city library recently hosted the first silent reading instead of.
