Search results
Results from the WOW.Com Content Network
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.
Tankless water heaters can be further divided into two categories according to their heating capability: "full on/full off" versus "modulated". Full on/full off units do not have a variable power output level; the unit is either fully on or completely off. This can cause an annoying and possibly hazardous variation of hot water temperature as ...
Condensing boilers are water heaters typically used for heating systems that are fueled by gas or oil. When operated in the correct circumstances, a heating system can achieve high efficiency (greater than 90% on the higher heating value) by condensing water vapour found in the exhaust gases in a heat exchanger to preheat the circulating water.
A man on Reddit says his boys' doctor suggested they eat meat — and after he fed it to them, his ex-wife called him "cruel" and told the boys to "refuse to eat"
Here it comes: The last supermoon of 2024! November ends the four-month supermoon streak that started in August.. November's full moon will appear bigger and brighter than other full moons, since ...
Carving a turkey, whether for Thanksgiving or any other holiday celebration, is a necessity that somehow became a grandiose tradition. In popular culture, the honor has traditionally gone to the ...
Extreme boiler scale buildup Limescale buildup inside a pipe both reduces liquid flow through the pipe, as well as reduces thermal conduction from the liquid to the outer pipe shell. Both effects will reduce the pipe's overall thermal efficiency when used as a heat exchanger. Boiler feedwater is the water which is supplied to a boiler.
Benjamín Olaizola, who came second to New Zealander Nigel Richards, called his opponent a “gifted guy” with “very particular abilities"