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Gas Water Heaters

Lots and lots of hot water – fast.

The next time you need to replace your water heater, replace it with a high-efficiency gas tank or tankless model. If you already have a natural gas water heater, you know about comfort and savings. But with a high-efficiency gas model, you’ll save even more. 

Condensing gas water heaters are the most energy efficient and thus cost less to operate. In simplest terms, a condensing gas water heater recaptures the heat of the flue gases that normally just get vented out, so less heat is lost out of the tank.

Types of gas water heaters

While there are literally hundreds of models available, gas water heaters come in two basic styles:

Tank style

This is the most common type of gas water heater currently in the U.S. Gas tank water heaters store hot water on a standby basis, heating and reheating the same water so it will be ready for you. The tank size typically ranges from 40 gallons to 100 gallons, depending on the hot water demand.

Tankless style

Gas tankless water heaters are becoming more widespread in the U.S. because they provide endless hot water, take up less space and save energy. Unlike tank-style water heaters that heat water in a storage tank, gas tankless water heaters heat water only when you need it.

What’s great about gas tankless water heating?

  • Tankless provides on-demand hot water.
  • It lasts longer—more than 20 years of continuous, virtually unlimited hot water—compared to a typical storage tank water heater lifespan of 10–15 years.
  • And it's one of the most energy-efficient water heaters available.