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Let me try and help you decide what unit is right for you. Tankless

water heaters are sized knowing the Average Ground Water Temperature

( AGW ) and the number of Points of Use ( PU ) to be used at the same time.

Click on the  Map – Chart, locate your area. Say you live in Pennsylvania,

you would be in the Green Zone and wanted to be able to operate 3 PU

at the same time. In the Map you see that the Power Gas 16L would provide

4 GPM & Power Gas ETL will provide 4.3 GPM.This unit will provide up to

5.4 GPM at 35 degree increase.

Our complete selection of Marey on instant on demand tankless hot water heaters
are listed here. Marey has been supplying tankless water heaters  since 1955. We
here at Hot Water Instantly are dedicated to offering a great low price, guaranteed.
 A best in the industry product warranty comes with every product listed.

Our hot water heaters are available in Natural gas and LP ( Propane )Gas and Electric .

                                          Estimated savings

                    Electric  Monthly  $30 - $50      Gas Monthly $50 - $70

                   Electric Yearly $300 - $600        Gas Yearly  $600 - $840

   Every product listed has a Click here button that opens a PDF file that has the units
complete description including the installation guide and warranty information.
   The installation guide comes with the unit and will walk you step by step for installing
 the unit. In todays economy who can afford to keep water hot 24-7? These tankless
hot water heaters only heat the water as it is being used. They supply endless
unlimited hot water. Take a small business or Church where days might go by without
using hot water. The water is hot and the electric meter is running but it's not being
used. 20% of the utility bill is from heating water and these heaters save 60% of that.
  These on demand tankless hot water heaters provide these assets.
* Allows customer to regulate energy consumption, adapting the product to
the homes electric capacity; Models include, Gas water heaters, electric water
* Saves water, electricity and space significantly. Easy management and simple
adjustments; No hot water tank to take up room. An in line water heater and
under sink water heater is out of the way.
* Filter on inlet to avoid sediments from damaging the unit; The water heater
element is stainless steel, built to last.
* Excellent post sales service and warranty;
To determine the size of the on demand tankless hot water heater you need,
you'll have to calculate how much hot water you'll need at one time, which
is called the flow rate. The flow rate is measured in gallons per minute ( GPM ).
The table below provides typical flow rates for typical household hot water
applications.These are averages.
Bathroom Faucet 0.5 - 1.5 GPM
Low Flow Kitchen Faucet 1.2 - 1.7 GPM
High Flow Kitchen Faucet 3.0 - 5.0 GPM
Shower 1.0 - 2.0
Dishwasher 1.0 - 2.5 GPM
Clothes Washer 1.5 - 3.0 GPM
More sizing information is displayed on the FAQ's page.









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