Thursday, January 7, 2016

Determining The Proper Tankless Water Heater

The Marey tankless water heaters come in many different shapes and sizes and there is not really one that fits all needs.  Determining the proper water heater to fit your application should be based on the number of fixtures that are to be used simultaneously, and their accompanying flow rates. Every home and every end user is different, so the sizing of the tankless water heater should be calculated to fit the needs and each home and user.  Many end users have homes with low flow water fixtures and they are cautious of the water they use while others have high flow fixtures and use many applications at one time.  What this really comes down to is the end users preference and their demands.  The Marey tankless water heaters come in either gas or electric so you will need to determine which will be best for you and is most cost efficient.

Step 1:  List your fixtures
Go around your home and add up the total number of water fixtures that use hot water.  These will be shower heads, bathroom sinks, kitchen sinks, etc.  Do not forget to add in washing machines and any other fixture that uses hot water.

Step 2:  Choose your simultaneous needs
Now it's time to figure out which of these fixtures/machinery will need hot water at the same time. Try to keep in mind the more simultaneous water fixtures you need.

Step 3:  Calculate Gallons Per Minute (GPM) for selected fixtures
GPM is the standard flow rate in the US and most of your faucets and showerheads will have their GPM flow rate stamped into the side of the fixture.  If the flow rate is not listed then you can use a gallon jug and time the flow of the water into the jug and this will give you the GPM for that fixture. After you have your flow rates of each fixture you will need to supply hot water to you can add them up and this will help determine which tankless water heater is good for you.  Please see the chart below for a better understanding of determining your flow rates.






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