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2. Descaling agent - Wikipedia

   en.wikipedia.org/wiki/Descaling_agent

   A descaling agent or chemical descaler is a liquid chemical substance used to remove limescale from metal surfaces in contact with hot water, such as in boilers, water heaters, and kettles. Limescale is either white or brown in colour due to the presence of iron compounds. Glass surfaces may also exhibit scaling stains, as can many ceramic ...

3. Tankless water heating - Wikipedia

   en.wikipedia.org/wiki/Tankless_water_heating

   A hybrid water heater is a water heating system that integrates technology traits from both the tank-type water heaters and the tankless water heaters. [5] It maintains water pressure and consistent supply of hot water across multiple hot water applications, and like its tankless cousins, it is efficient and can supply a continuous flow of hot ...

4. Limescale - Wikipedia

   en.wikipedia.org/wiki/Limescale

   Descaling agents are commonly used to remove limescale. Prevention of fouling by scale build-up relies on the technologies of water softening or other water treatment. This column in the Bad Münstereifel church in Germany is made from the calcium carbonate deposits that built up in the Roman Eifel Aqueduct over several centuries of use.

5. Father of 2 Missing Since the Holidays Reportedly Found Dead ...

   www.aol.com/father-2-missing-since-holidays...

   The body of a Michigan father who went missing while attending a family gathering over the holidays has reportedly been found. On Saturday, Jan. 4 at approximately 2 p.m. local time, 52-year-old ...

6. Check Out the Venomous Defense Mechanism of the Male Platypus

   www.aol.com/check-venomous-defense-mechanism...

   Male platypuses have sharp spurs on their back legs shaped like a canine tooth. These hollow spurs measure 0.59 to 0.71 inches long and connect to crural glands in the animal’s upper thighs.

7. Biden bans new oil, gas drilling off most US coasts as Trump ...

   www.aol.com/biden-bans-oil-gas-drilling...

   A person fishes with offshore oil and gas platform Esther in the distance on January 5, 2025 in Seal Beach, California. President Joe Biden has permanently banned future offshore oil and gas ...