Gas Water Heater Efficiency Ratings

Smith produced its first water heater in 1939.

Gas water heater efficiency ratings.

Going with the noritz nr662 od ng tankless water heater means that you have a thermal efficiency of 84 and energy factor 0 81. The higher the ef value is the more efficient the water heater. With water heaters you can select a tank water heater or a tankless water heater. Efficiency standards for gas and electric water heaters are different but both use the uniform energy factor uef ratings system where higher scoring units produce more hot water while using less energy.

Top 10 best gas water heater in 2020 ultimate reviews and buying guide august 25 2019 june 21 2020 by brent collins based on a number of water heating options available the use of gas powered water heaters is among the popular ones. Due to inconsistent unreliable interpretations of high efficiency ef ratings across national brands all water heating manufactururers are now required to comply with the new doe testing procedures and rating standards. Check our gas and electric water heater ratings for more. Today it is headquartered in ashland city tenn.

The following is a list of water heater options by fuel or energy source. And manufactures gas electric hybrid and tankless water heaters. Fuel type and its availability in your area may narrow your water heater choices. To help consumers in their water heater purchase decisions the department of energy has developed new industry standards.

The fuel used by a water heating system will not only affect annual operation costs but also the water heater s size and energy efficiency. Ef is determined by the department of energy s test method outlined in the 10 cfr parts 200 to 499 edition revised as of january 1 2014. Exploring water heater options by fuel type. Not only does this water heater have a gas rate input of 15 200 to 199 000 btus.

An older measure of water heater overall efficiency that is being phased out due to new test methods for water heaters. As the result of recently updated efficiency standards water heaters under 55 gallons now have a 4 percent boost in efficiency while.