There are several titan tankless water heaters on the market. Each model can vary significantly on several factors, including energy efficiency, the maximum throughput and guarantee. When choosing a water heater Energy Star qualified, you can ensure that you are getting a tankless water heater that is high quality and energy efficient.
Unfortunately, not all tankless units qualify for the Energy Star standard. To be eligible, tankless water heaters must meet certain minimum requirements. So what are the qualifications for a water heater Energy Star? Well, there are actually several, but here is a list of the most important.
Energy Factor
The U.S. department of energy yield of a water heater by determining the energy factor (EF). The energy factor determines the efficiency. So, the higher the energy factor, the more effective it will be.
factors can vary considerably in energy between the different models. Most average between 0.60 to 0.90 RU. To be considered a water heater energy Star, tankless water heaters must have a minimum energy factor of 0.82EF.
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