First of all, the tankless water heater is one of the best choices of heaters that are currently available on the market today. This is mainly because of the many advantages that come with it. To start with, it is perfect for people who want to save a lot of energy while heating their water at very high rates. For example, some tankless water heaters can heat water up to 15 litres of water in one minute. This means that you can get a continuous supply of heated water without wasting any time. It provides heated water spontaneously.
The deionised water heater is another good choice which can provide heated water very quickly. Like the tankless option, this heater can also produce heated water spontaneously. Therefore, it is quite efficient and saves a lot of energy. But, it is much better than the tankless option because it is a standalone heater. This means that it can be used anywhere. On the other hand, it is actually more versatile than the tankless option.