Save Money and More with ENERGY STAR Gas Condensing Water Heaters
Choosing an ENERGY STAR qualified gas condensing water heater instead of a standard model can save over $100 a year. That's over $1000 over the expected lifetime of the water heater. Larger families can save even more.
Save energy and the environment. You can cut your water heating energy use by 30% with a new ENERGY STAR qualified gas condensing model. By shaving about 75 therms from your natural gas bill every year, you are also reducing your greenhouse gas emissions. If just five percent of the gas water heaters sold each year were ENERGY STAR qualified gas condensing models, the U.S. would avoid wasting $25 million — and 17.2 million therms of energy — each year. In terms of greenhouse gas emissions, that's equivalent to taking almost 17,000 cars off the road.
Enjoy a nearly constant supply of hot water. Because gas condensing water heaters are so efficient at heating water, the tank heats up almost as quickly as it's filled. Those days of running out of hot water during the morning shower will be a distant memory.
How it Works
Gas condensing water heaters work much like regular gas water heaters: a large, insulated tank of water is heated by a gas burner. But an enhancement significantly increases efficiency and performance.
Instead of venting the combustion gases directly outside, those gases are captured and utilized to heat the water even more. A standard gas storage water heater is like a water tank sitting atop of a gas fireplace with the chimney running straight up through the middle, exiting at the top. A gas condensing water heater has its "chimney" or flue designed with greater surface area. The heat and combustion gases have much farther to travel before they exit the water tank, so more heat is transferred to the water in the tank.
