In the past 10 years, tankless water heaters become more common in the United State. In
order to understand why the tankless water heaters become more prevalent, it is important to
understand the disadvantages for the tank- type water heaters. These traditional heater systems
have a large tank that will be holding approximately 40- 80 gallons of water and continuously
keep heating the water in 120 to 140 degree Fahrenheit. The energy used to keep the water in a
certain of temperature even when the owner is not using is called the standby heat loss. Installing
a tank-type water heaters will not taking away the usable area, but also increasing your utilities
Instead of heating the water 24 hours, tankless water heaters generate hot water when you
need to use it, and that can help minimize the utilities bills, as well as the environmental impact.
Tankless systems are using natural gas, propane or electric to operate the system, and the system
will generate heat by using an extremely powerful heat exchanger. The heat exchanger will
activated once there are incoming flow water and will transfer the heat that has generated by the
burner to the water that is coming out from the faucet. In this way, when the owner turn on the
hot water tap, the supply water will be circulate through the activated exchanger by the copper
coil, which will able to provide hot water as an output. Tankless water heaters have two
assortments, these are include the “point of use heaters” and “whole house heaters”. Comparing
these two tankless system, the “point of use heater” is a smaller system and will only able to
support two outlets in a role. On the other hand, “whole house heater” is a larger system and
more costly, however it can support more outlet at one time. Depends on the usage of hot water
and the owner’s demand of hot water usage, known as the hot water flow rate, and decide which