A threat of blackmail is overheard through a heating duct.
He eavesdrops on therapy sessions through a heating vent.
Happily, my guesthouse for the night, the Chikatsuyu Minshuku, was the only one in town to pump these sacred waters through a heating system and into a bath right by the side of the river.
Samples of piezoelectric cement, consisting of equal volumes of lead zirconate titanate and type I Portland cement, were treated through a heating technique and cured for controlled lengths of time to produce notable piezoelectric properties.
The latter rule would seem to exclude masterpieces like Doyle's "The Adventure of the Speckled Band," which involves a murder carried out by a snake trained to shimmy through a heating duct, then down a bell rope whose tassel extends to the victim's pillow.
Instead of using fields of mirrors and a central tower to concentrate heat, they propose converting electricity generated by any renewable source, such as sunlight or wind, into thermal energy, via joule heating — a process by which an electric current passes through a heating element.
