Gas Water Heater Efficiency Factor

Think of this as the baseline.

Gas water heater efficiency factor.

The new uef standard affects more than just the efficiency number itself. Water heater key product criteria. Examples of performance factors impacted by uef include. Conventional gas fired water heater.

Type of water heater. Pilotless gas fired water heater. With water heaters you can select a tank water heater or a tankless water heater. Going with the noritz nr662 od ng tankless water heater means that you have a thermal efficiency of 84 and energy factor 0 81.

0 55 gas lp or natural. What energy efficiency rating factors have changed. Gas water heaters can heat the water to set temperature about twice as fast as electric heaters do and cost about half as much to run as an electric unit. Natural gas water heaters are still the most common probably because they are generally more efficient than electric water heaters.

What energy efficiency rating factors have changed. The new uef standard affects more than just the efficiency number itself. Gas lp or natural. Some manufacturers make models that are better insulated and have ratings as high as about 62 which would contribute to maybe 7 or 8 in cost savings per year.

There are two classifications of commercial gas water heaters. Gas lp or natural. This unit is not only energy certified but also ansi and csa certified. High efficiency he water heaters and.

Examples of performance factors impacted by uef include. The specification covers high efficiency gas storage whole home gas tankless solar and high efficiency electric storage water heaters. Condensing gas storage type water heater. Energy efficiency rating ef.

One good way to determine whether or not a water heater is energy efficient is to look for the energy star label. Gas powered water heaters typically have an energy factor between 0 5 and 0 7. Learn how a product earns the label. Most new water heaters have an efficiency factor ef of 58 60.

A tankless water heater is a more environmentally friendly option that will last for years longer than a water heater tank. Conventional oil fired water heater. The uniform energy factor the uniform energy factor for residential and certain commercial water heaters refers to its efficiency when run under standardized conditions for a 24 hour period. Products must meet minimum requirements for energy efficiency hot water delivery warranty period and safety.

As of september 1 2010 a water heater needs to have an energy factor of 0 67 or higher in order to qualify for the energy star label. Oil no 2 home heating oil. Adjustments in new doe testing procedures now impact water heating performance stats associated with the amount of hot water produced in a real world situation to the length of typical showers. Adjustments in new doe testing procedures now impact water heating performance stats associated with the amount of hot water produced in a real world situation to the length of typical showers.

Expressed as a decimal the uniform energy factor is determined by running a department of energy specified simulated use test sut.