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2. List of most-subscribed YouTube channels - Wikipedia

   en.wikipedia.org/wiki/List_of_most-subscribed...

   American YouTube personality MrBeast is the most-subscribed channel on YouTube, with 339 million subscribers as of December 2024.. A subscriber to a channel on the American video-sharing platform YouTube is a user who has chosen to receive the channel's content by clicking on that channel's "Subscribe" button, and each user's subscription feed consists of videos published by channels to which ...

3. Hydronics - Wikipedia

   en.wikipedia.org/wiki/Hydronics

   Historically, in large-scale commercial buildings such as high-rise and campus facilities, a hydronic system may include both a chilled and a heated water loop, to provide for both heating and air conditioning. Chillers and cooling towers are used either separately or together as means to provide water cooling, while boilers heat water.

4. Underfloor heating - Wikipedia

   en.wikipedia.org/wiki/Underfloor_heating

   Underfloor heating and cooling is a form of central heating and cooling that achieves indoor climate control for thermal comfort using hydronic or electrical heating elements embedded in a floor. Heating is achieved by conduction, radiation and convection. Use of underfloor heating dates back to the Neoglacial and Neolithic periods.

5. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   The Summer Palace in St. Petersburg had an early system of hydrologic central heating. Early hot water systems were used in Ancient Rome for heating the Thermæ. [13] Another early hot water system was developed in Russia for central heating of the Summer Palace (1710–1714) of Peter the Great in Saint Petersburg. Slightly later, in 1716, came ...

6. Electric heating - Wikipedia

   en.wikipedia.org/wiki/Electric_heating

   30 kW resistance heating coils This radiant heater uses tungsten halogen lamps. Electric heating is a process in which electrical energy is converted directly to heat energy. Common applications include space heating, cooking, water heating and industrial processes. An electric heater is an electrical device that converts an electric current ...

7. I traveled to 50 of the top countries for tourism and ranked ...

   www.aol.com/traveled-50-top-countries-tourism...

   Canada is a beautiful country and an outdoors lover's paradise, with national parks such as Banff and amazing winter sports in Whistler.. But outside Quebec and a handful of other provinces ...