We Know: All About Tankless Water Heaters

What is a tankless water heater?

A tankless water heater is just that-tankless. Rather than acting as a storage unit for water and heating up whatever the tank holds, a tankless water heater works by heating the water as it flows through the pipes of the unit. Tankless water heaters are also referred to as on-demand water heaters.

How do tankless water heaters work?

Tankless water heaters work by only turning on when the hot water tap is opened. Once the water enters the heater, the burner is ignited and the water heats in a matter of seconds and then travels to the faucet. Once the hot water tap is closed, the tankless water heater shuts off.

How are tankless water heaters better than traditional water heaters?

Tankless water heaters hold important benefits over the traditional water heater.

First, tankless water heaters save energy. Since they are only turned on when the hot water faucet is open, they conserve electricity (or gas, depending on which type you use) and running water as well.

Tankless water heaters also help you save money. While the units cost more initially to purchase and install, most consumers make their money back in how much they save on their electric and water bills.

Where can I purchase a tankless water heater?

There are many websites that offer information about tankless water heaters and provide the opportunity to purchase them.

  • Go Tankless
  • Seisco Tankless Water Heaters
  • Eemax Tankless Water Heaters

How much does a tankless water heater cost?

Tankless water heaters vary greatly in price. On the low-end, models can cost from around $200-$300. On the high-end, these units can cost between $900-$1500. Price usually depends on how they are powered (gas vs. electric) and their ability to heat (for example, do you want to be able to heat two shower simultaneously? One shower and one sink? etc.)


What else do I need to know?

Tankless water heaters usually have special requirements for your home depending on how you intend to use them. For example, 240v electrical outlet may be required for electric heaters, or a certain size gas line for gas-powered. And, you may need to install a special exhaust vent in your wall or ceiling depending on the size of the heater (often, your existing "tank" water heater vent is not large enough). You must follow the manufacturer's installation requirements for a safe installation.

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