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A hot-water radiator consists of a sealed hollow metal container filled with hot water from a boiler or other heating device by gravity feed, a pump, or natural convection. As it gives out heat, the hot water cools and sinks to the bottom of the radiator and is forced out of a pipe at the other end.
The distribution network is more costly to build than for gas or electric heating, and so is only found in densely populated areas or compact communities. Not all central heating systems require purchased energy. A few buildings are served by local geothermal heat, using hot water or steam from a local well to provide building heat.
Leg as in "hot leg" refers to one of multiple hot conductors in an electrical system. The most common residential and small commercial service in Canada and the U.S., single split-phase, 240 V, features a neutral and two hot legs, 240 V to each other, and 120 V each to the neutral. The most common three-phase system will have three hot legs ...
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Hot flashes occur in around 80% of menopausal women and can include periods of sweating, flushing and chills lasting for several minutes. We've taken a deep dive into all things hot flashes to ...
Humans inhabit hot climates, both dry and humid, and have done so for millions of years. Selective use of clothing and technological inventions such as air conditioning allows humans to live in hot climates. One example is the Chaamba, who live in the Sahara Desert. They wear clothing that traps air in between skin and the clothes, preventing ...
Another trick to get coffee out of non-synthetics like cotton, linen, and wool is having “very, very, very” hot water, Pergola says. If hot enough, your coffee stains don’t stand a chance.
An electric convection heater. In a convection heater, the heating element heats the air in contact with it by thermal conduction.Hot air is less dense than cool air, so it rises due to buoyancy, allowing more cool air to flow in to take its place.