Tankless water heaters would be the type of water heaters which can easily and efficiently provide hot water without the use of any kind of storage tank. They are also called instantaneous water heater, as it just heats the water whenever some is needed. Once the user turns on the water tap, cold water would be flowing through the heating mechanism which would result in hot water produced.
These tankless water heaters are able to function differently compared to the conventional or traditional water heating systems because they do not need storage tanks and are much more friendly to the environment, as the system avoids any standby energy consumption.
Now, if you are in the market for a tankless water heating unit, then there are a couple of things and factors that you need to check and determine so that you can be sure you would be getting the best tankless water heater for your household or commercial needs. Some of the more important factors would be your preference of the power supply, the capacity of the water heater as well as the application.
Tankless water heaters can generally be powered by gas or propane or by electricity. These different types of power supply are designed for various applications. For instance, electrical tankless water heaters usually provide lower power efficiency but are a lot easier to install. In contrast, the propane or gas powered tankless water heaters are more power efficient but are a bit harder to install.
As you shop around for a tankless water heater, make sure that you are well-informed that there are those heaters that are designed for multiple point applications and some which are designed for single point application. The ones made for single point application could be used for just one hot water outlet like a kitchen faucet or your shower tap. Those that are made for multiple point applications lets you have or use them for several hot water outlets simultaneously.
Another factor to consider as you look for your tankless water heater would be the heater's capacity. Most tankless water heaters are designed and sized based on the maximum temperature rise which is possible with a given flow rate. Remember that if you would be getting a water heater that is too big for your needs could end up being a huge waste of money, while those heaters that are too small might not be able to efficiently provide you with adequate hot water.
As for the prices, the electric tankless water heaters usually cost around $100 to $200 while the gas or propane powered water heaters usually cost around $800 to $900. You could always try to do some researching to make sure you would be getting a unit that would be best for you and your requirements.
Want to know more about Tankless Water Heater ? Please check my website http://www.real-water.com/tankless-water-heater