What Is a Good Uef Rating
In General, Energy Star Certified Conventional Gas and Electric Water Heaters Have Uef Ratings Between 0.65 and 0.95 — or 65 to 95 Cents on the Dollar — While...
In general, ENERGY STAR certified conventional gas and electric water heaters have UEF ratings between 0.65 and 0.95 — or 65 to 95 cents on the dollar — while hybrid electric heat pump water heaters have much higher UEF ratings of 2.75 to 3.5.
How do I know what UEF my water heater is?
UEF ratings are determined by assigning water heaters into one of four different categories of hot water usage and then evaluating their performance based on that usage. These categories are called bins. A water heater is assigned a UEF within its bin based upon its first hour rating.
What is the difference between EF and UEF?
Previously, you may have seen efficiency measured by Energy Factor (EF). UEF replaces this metric. … A higher UEF means a water heater is more energy efficient and will cost less to operate compared to other water heaters in the same bin. A water heater’s UEF can only be compared with water heaters within the same bin.
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