What Are Tankless Water Heaters and How Do They Work?

What Are Tankless Water Heaters and How Do They Work?

Also popular as instant water heaters, Tankless Water Heaters demand and installation have been on the rise lately. It not only reduces the cost of energy but is also best if you are campaigning for the conservation of earth resources. This appliance consumes less space and works efficiently in delivering on-demand hot water. With that in mind, here is more insight on Tankless Water Heaters:

What’s a Tankless Water Heater?

This is a water heating appliance that provides on-demand hot water when needed. It doesn’t come with a storage compartment but has an efficient heating system that turns cold water hot quickly. As such, it consumes less storage space and it doesn’t cost you much when it comes to the energy bill. Depending on the type you prefer, you can have either an electric or gas burner tankless water heater. 

Gas Burner Tankless Water Heater

From the name, a gas burner tankless water heater uses gas to power the heat exchanger. It’s long-lasting than standard water heaters and inexpensive when it comes to the monthly energy bill. 

Electric Tankless Water Heater

The electric tankless water heater on the other end relies on electricity to power the heat exchanger. It’s the best for a small household, less bulky, and more efficient. 

How Do They Work?

From the name, Tankless Water Heaters operates without a tank. As such, the cold water through the inlet is heated directly. Its mechanism is simple when you turn on the hot water faucet, cold water will flow into this appliance. 

Depending on what it’s powering the heat exchanger; the water is heated and flows out through the outlet hot. As mentioned earlier, your tank can either be electrically powered or gas burner powered to heat the water. 

Thanks to tankless water heaters, you no longer have to give the heating system head start to get hot water. Without the tank, the water turns hot instantly as it’s heated through the heat exchanger. However, it does limit you on the flow rate, especially if you are using an electric system. 

Oftentimes, this type of water system generates hot water at the rate of 2.5 gallons per minute. Therefore, if your households are heavy consumers of hot water, then a gas burner tankless water heater will do. 

The gas burner option provides a higher flow rate of hot water. Therefore, it can cater to the needs of a larger family. But even so, this sort of water heating system doesn’t cover the entire household simultaneously. It’s one function at a time unless you have given it an upgrade. That means, if someone is at the laundry, another in the kitchen as well as the bathroom, this appliance will lose efficiency.  

But with the installation of several gas tankless heaters, you can solve this issue. Everyone will be able to access hot water without affecting the other. However, you’ll need expert help with this. 

Therefore, contact a tankless water heater plumber to help you with this sort of upgrade. They’ll assess your situation and advice you where you need an upgrade or installation of another heater. 


  •     Hot water on-demand
  •     Consumes less storage space
  •     Longer lifespan
  •     Lower monthly energy bill
  •     Reliable


  •     Limited flow rate
  •     May need additional equipment 

Final Take

Can’t tell whether you need an electric or gas burner tankless water heater? Well, contact residential plumbing service to assist you. For instance, if you are from Palm City or West Palm Beach Florida, call Flamingo Plumbing and Backflow

They are experts in water heater plumbing, whether it’s standard or tankless. Luckily, their specialty lies in tankless water heaters. And through their free estimate offer on water heaters, you can tell what fits your budget.