Its condensing technology obliges two heat exchangers, making its energy factor to be 0.95, and it is designed for indoor installation. This tankless gas water heater produces up to 6.6 gallons of ...

Uniform Energy Factor refers to a water heater's efficiency when run under simulated heavy use conditions for a 24-hour period. Gas Tankless is part of the Water Heaters test program at Consumer ...

the cold water travels through a pipe and into the tankless water heater unit where it is heated by a gas burner or an electric element. This allows you a constant supply of hot water. On average ...

The best water heaters come in both tank and tankless, meet new standards for energy efficiency, and are the right capacity for your needs.

Essentially, the standards call for new tankless (sometimes called instantaneous) gas water heaters to use less energy than the least efficient models currently available, according to the Appliance ...

Understanding the orders The orders require new gas tankless water heaters, also known as instantaneous heaters, to use about 13% less energy than less efficient models, a change that effectively ...

The new rules, which were published by the Department of Energy just after Christmas, also stipulate that new tankless gas water heaters must rely on 13% less energy than the least efficient ...