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The history of the Vaillant Group dates back to 1874, when Johann Vaillant set up a master fitter's business. In 1894 Johann Vaillant patented a new "closed-system" gas-fired bathroom boiler. [3] This was the first device that made it possible to heat water hygienically, without contaminating it with combustion gases.
Compared to tankless heaters, storage water heaters have the advantage of using energy (gas or electricity) at a relatively slow rate, storing the heat for later use. The disadvantage is that over time, heat escapes through the tank wall and the water cools down, activating the heating system to heat the water back up, so investing in a tank ...
A fan heater, also called a blow heater, is a heater that works by using a fan to pass air over a heat source (e.g. a heating element). [1] This heats up the air, which then leaves the heater, warming up the surrounding room. They can heat an enclosed space such as a room faster than a heater without a fan, [2] but like any fan, create a degree ...
Young boy, possibly the brother of the artist, Mezzotint The painter Maria van Oosterwijck, 1671, by Wallerant Vaillant A couple painted by Wallerant Vaillant. ( Gemäldegalerie , Berlin) Wallerant Vaillant (30 May 1623 – 28 August 1677) was a painter of the Dutch Golden Age and one of the first artists to use the mezzotint technique, which ...
Ludvy Vaillant (born 15 March 1995 in Fort-de-France, Martinique) is a French athlete competing primarily in the 400 metres hurdles. [2] He represented his country at the 2017 World Championships reaching the semifinals. In addition, he won a bronze medal at the 2017 European U23 Championships.