A instant hot water dispenser or boiling water tap is a device that divides water at about 94 ° C (201 ° F) (almost boiling). There is a model of hot water-only and hot and cold, and the water can be filtered and heated. Instant hot water dispensers became popular in the 1970s. Instant hot water dispensers are very similar to portable showers; the latter is equipped with heating elements and quickly heats the water, once the switch is activated.
Video Instant hot water dispenser
Type
- Boil-on-demand known as instant hot water dispenser consists of heating and boiling a little water very quickly. They are small and portable, do not take up much space, cheap, do not need to be installed, dispose of no electricity because water is only heated when needed, fast but not instantaneously, do not dispose of electricity with hot water, unsuitable for heating more than one or two cups water all at once, and needs to be refilled.
- Hot water tank dispensers are fed directly into the water supply and heated in a sink or over-counter tank (mounted on the wall); hot water is piped through the faucet in the sink. They may have a built-in water filter and a thermostat to adjust the water temperature. No need to fill it, they can produce large amounts of hot water, water temperature can be set, they are expensive and require pipe work, not portable, and dispose of electricity that makes hot water at any time.
- Thermo Pot electric kettle hot water dispenser is a combination of electric kettle and hot water flask; water is heated in pots and left in an isolated pot ready to be pumped out by a built-in power pump or manual push-down pump. They do not need to be installed, portable, may have an adjustable temperature, need recharge (capacity is usually 2 to 5 liters), and dispose of electricity that makes hot water all the time.
- Bottom Water Dispenser is a special dispenser in which the water bottle is placed at the bottom of the dispenser. This is very convenient because the bottle does not have to be lifted and placed upside down.
- Upper Water Dispenser is a smaller unit that can be placed directly on the table to release hot or cold water.
- Direct Piping Water Dispenser is directly connected to a water source for automatic refilling of constant hot or cold pure drinking water.
Maps Instant hot water dispenser
Operation
Most types have small thermal-insulated tanks with heaters that make water in the hot tank.
When the handle is pressed, cold tap water flows into the tank and removes the almost boiling water, which flows out of the spout. On releasing the handle, the valve closes and the hot water stops flowing. The cold water is then heated to about 94 Â ° C (201 Â ° F) ready for use but the Quooker PRO-VAQ water tank heats water up to 110 ° C (230 ° F) which means water flows out. from the spout at 100 Ã, Â ° C (212Ã, Â ° F). Some tanks feature a 750 W heater that delivers up to 60 cups of water per hour at a temperature regulated by the dial. Some models are equipped with a filtration system to remove contaminants, and can dispose of hot or cold filtered water. Advanced filtration systems can reduce taste, odor, sediment, toxic chemicals, heavy metals such as lead, and hazardous minerals. They also remove parasites and sometimes dangerous protozoa such as cryptosporidium, even though high temperatures prevent it from danger in hot water.
Energy efficiency
The hot water dispenser that keeps the hot water in the tank uses the energy required to heat the water up to the required temperature, and throws away the energy it needs to keep the water permanently hot inside the heat insulated tank when not in use. Tank type dispensers often also consist of wasted energy 'keep warm' and 'boil' functions.
In fact, an instant tank water dispenser without a tank does not waste significant energy. Only when hot water is needed, instant heating consumes at least 2000 watts to produce hot water at 92 ° C and above. The flow rate of hot water flowed about 20 liters per hour. Compare this to the type of insulated hot water dispenser that consumes about 500w, the amount of energy savings to produce 20 liters of hot water at least 5 times faster. Savings not only come from speed, but also instant hot water dispensers do not 'stay warm' or 'boil'. In fact, it further provides the ease that the user does not need to turn off the tool when not in use.
In many cases, the alternative is to heat water, say, a kettle. If only the amount of water required is heated, use less energy: the same energy is used for heating [need clarification: only if kettle and dispenser have the same heat transfer, which is highly unlikely], but nothing keeps the heat. If more water than needed is boiled in the kettle, the energy is wasted in heating the unwanted water, which then cools.
Sometimes an unlimited supply of hot water in unknown quantities is required, for example when cooking of risotto stew water should be added instantly as needed. This can only be achieved by boiler by boiling the maximum amount that can be required; in such cases, instant water heaters, which heat up and remove only what is needed, are always more efficient.
Comparative efficiency as a whole can only be estimated by calculating the energy wasted by a water heater, and comparing it with the wasted by heating more water than necessary in the kettle under typical circumstances. The efficiency of the kettle depends on the usage pattern, and can be enhanced by the user's discipline; efficiency of the dispenser can not be fixed. Shutting off when not needed, like at night, will save a lot of energy and improve overall efficiency.
Installation
Instant hot water tank dispensers can be installed by the owner or plumber, usually in a standard sink hole with a tank under the sink.
See also
- Water heater
- Electric water boiler
- Electric kettle
- Zojirushi Corporation
- Tiger Corporations
References
External links
- Basic installation information
Source of the article : Wikipedia
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