Uniform Energy Factor (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 hybrid electric heat pump water heaters have much higher UEF ratings of 2.75 to 3.5.
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 hybrid electric heat pump water heaters have much higher UEF ratings of 2.75 to 3.5.
How do I know what type of water heater I have?
Look at the top of the heater for an electrical supply cord. This looks like a thick extension cord and is generally black or gray. If you see one going into the top or side of the heater, it is an electric water heater.
What is my water heater UEF?
A water heater's UEF rating is a measure of its energy efficiency, with higher numbers denoting more efficient units. The UEF calculation is based off of how much energy the water heater uses and how much energy is used to power the water heater itself.
What is the number 1 hot water heater?
RANK PRODUCT NAME
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1 Rheem Performance Platinum Hybrid Electric Water Heater 5/5 Buy now
2 Rheem Performance Platinum Electric Water Heater 4.5/5 Buy now
What number should your water heater be set at?
The Consumer Product Safety Commission (CPSC) recommends setting the water heater at no more than 120 degrees Fahrenheit (49 degrees Celsius) to prevent scalding. Not to mention, a water heater that is set too high can unnecessarily increase your electricity bill. Of course, every house is different.Jul 18, 2018
What kind of water heater is most efficient?
Tankless heaters can be 24-34% more energy-efficient than regular water heaters for households that use 41 gallons or fewer of hot water daily. Tankless heaters can be 8-14% more energy-efficient for households that use around 86 gallons daily.Oct 6, 2016
What do the numbers on a water heater mean?
The serial number contains the year the water heater was manufactured and the model number will tell you the size i.e. how many gallons the water heater holds. ... More importantly, if you ever need to call the manufacturer for any reason, they will always ask for the model and serial number.Mar 6, 2018
Which type of water heater is most efficient?
Tankless heaters
What is the downside of a tankless water heater?
The main disadvantage of tankless water heaters is their upfront cost (unit and installation) is significantly higher than tank-style heaters. Including installation, tankless water heaters cost 3 times more than tank-style water heaters on average. ... they cannot provide hot water during a power outage.Aug 3, 2021
Is a tankless water heater more energy-efficient?
According to Energy.gov, “For homes that use 41 gallons or less of hot water daily, demand (or tankless) water heaters can be 24% to 34% more energy efficient than conventional storage tank water heaters.” Tankless water heaters (if gas-fired) will save homeowners over $100 annually the longer they remain in service.