As the name suggests, these are water heaters without a tank. The tankless water heaters are also known as on-demand water heaters. It heats the water only when there is a need to use hot water.
It can heat water anytime you want. You can easily set these tankless water heaters on the wall or in any place where you find a convenient location in your home. It works on natural gas or propane.
It will not store or preheat the water in the tank but heat the water only when required, helping save energy. When you open the tap with a tankless water heater connection, it will start to recognize a need for hot water.
At that time, the tankless water heater starts heating water. The tankless water heater starts calculating water temperature and heats it according to the desired temperature. When it reaches the demand of desired hot water, it shuts down all the units and waits for more hot water requirements.
Advantages of Tankless Water Heater
There are several advantages of tankless water heater which include,
1. Heating Water Instantly
You don’t need to wait for the tank to store water and start the water heating process. When you open the tap in the tankless water heater, this tank instantly begins heating the water. This tankless water heater immediately supplies you the hot water without making you wait.
2. Lower Bills
When using other water heaters, they consume a lot of energy to start heating water. But that is not the case with a tankless water heater. It will begin when you require the hot water and stop instantly. This tank will help you save a lot of energy and lowers your bills.
3. Less Space Consumption
Traditional water heaters usually take up to 16 square feet of space on the floor. But the tankless water heater is compact and requires less space. It has a small suitcase size. The tankless water heater can easily be installed on any wall or any closet inside the house.
Typical tank water heaters last up to ten years. After ten years, there is a need to change the heater. But the tankless water heater lasts up to twice the water heater that contains a tank. It can easily last for 20 years more than a tank water heater.
5. Clean Water Every Time
In the tank water heater, water is stored inside it, and rust builds up. When you use that water for bathing and washing, this water is not much cleaner as in a tankless water heater. The tankless water heater stores no water, so you will always experience freshwater.
6. Continuous Water Supply
Another great advantage of a tankless water heater is that it provides a constant water supply of hot water. You do not have to wait for the hot water while using the tankless water heaters.
Disadvantages of Tankless Water Heater
Some disadvantages are related to the tankless water heater, which includes:
A tankless water heater, because of many advantages, costs more than a tank water heater. It will cost two to three times more than a tank water heater. The installation cost of a tankless water heater is also high.
2. Less Flow Rate
If two or three water points are working simultaneously, its water flow rate decreases significantly. If you are bathing and the dishwasher is running at a time, it will serve one faucet at a single time.
3. Venting System
The tankless water heaters have high power burners that require a unique venting system. This venting system is difficult to install. So, you will need to hire a professional to install it.