The term instant hot water means that the time it takes for hot water to be accessed is minimal. Instant hot water is used in contrast to systems where an individual has to turn on hot water and then wait for the water to go through the process of warming up.
It means all you have to do is add hot water to the coffee in order to drink, instead of brewing it is a coffee maker.
The main characteristics of instant hot water heaters are heating water for the household and storing it in a tank and usually being found in basements.
instant gas
Instant coffee granules dissolve faster in hot water than in cold water.
AlpenWeiss
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Normally, you'll have to change out the gas orifices. Better contact the manufacturer of the instant hot heater to be sure it can be converted.
Physical but especially also chemical because the instant coffee suffer a process of solubility in water.
Hot water will be the solvent , sugar and the coffee powder will be the solutes
Unlike storage water heaters where a large quantity of water is kept heated all the time, the instant water heaters heat the water during passage. It does take a few seconds for hot water to reach but it save a lot of money while saving electricity.
Yes it is because it can get every where
Some hot water systems are designed to give you instant hot water. This is achieved by using a small pump to constantly circulate hot water through the pipes in your home. If you have an instant hot water system and you want to check to see if this is the source of the running water, find the hot water circulating pump (probably in the vicinity and downstream of the hot water heater) and turn it off. If you still hear water circulating, you should check further as you may have a leak in the cold water system. Hope that helps.