Have you ever heard of EF when it comes to tankless water heaters? It’s a term that may be unfamiliar to many, but has a very important role to play in making sure that you get the most out of your water heater. In this article, we will discuss the meaning of EF, how it relates to tankless water heaters, and why it’s important that you understand it.
After reading this article, you’ll have a better understanding of how EF impacts your tankless water heater, so keep reading and let’s get into it!
What is EF in Tankless Water Heater?Tankless water heaters are a popular alternative to traditional storage tank water heaters. They provide instant hot water on demand and can save homeowners money in energy costs.
One of the most important specifications of tankless water heaters is their Efficiency Factor (EF).
What is Efficiency Factor (EF)?
Efficiency Factor (EF) is a measure of how efficient a tankless water heater is at producing hot water. It is expressed as a percentage and is calculated using two parameters: energy input and energy output. The higher the EF, the more efficient a water heater will be.
How is EF calculated?The Efficiency Factor (EF) is calculated by taking the energy output of the water heater and dividing it by the energy input.
EF is expressed as a percentage and can range from 0% to 100%.
What is a good EF for a tankless water heater?The Energy Star program has set the minimum standard for tankless water heaters at EF 0.
82 or higher. A tankless water heater with an EF of 0.
82 will produce 82% of the hot water it produces while using only 18% of the energy used to produce it.