Every household has appliances that people  generally don’t think about until they break.  Once they are replaced or  fixed, people will forget about them in about a month or so too.  Water  heaters are one of the most common appliances that people generally don't like  to think or worry about. 
                         
Water heaters are also one of the most common appliances that no one really  knows anything about until it breaks.  So, when yours breaks down and you  need to start shopping for a new one, here are a few tips to help you search.  Since most water heaters look alike on the outside, you really need to learn  about what goes on inside the shell to make a wise choice.  The first  piece of information to know that is your typical usage of water.  There  are tons of online calculators that will help you find a number. 
 
Then, you will want to look at these two important abbreviations: FHR and  GPM.  FHR stands for First Hour Rating and is generally associated to  storage tank water heaters.  GPM stands for Gallons Per Minute and is  generally associated to tank-less water heaters.  Both abbreviations will  tell you how much hot water the system can deliver during use.  There are  two types of water heaters and those are storage tank Water Heaters and  tank-less water heaters.  The storage tank water heater is the most common  and is a big white cylinder tank in your basement that is generally heated by  electricity or by gas. 
                     
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