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PeakFlow Series

Scale Prevention System

Peakflow prodfam layered

Navien PeakFlow®… from protecting your water heater to protecting your complete water supply system

Navien PeakFlow systems have been protecting Navien tankless water heaters and combi boilers from damaging lime/ calcium deposits in their products for many years. This advanced technology is now available to protect your complete water supply system for residential and commercial applications.


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    DHW piping

  • Peakflow-feature-img-hx

    Tankless water heater heat exchanger

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    Water heater outlet

Reduce scale, increase your energy efficiency

Monthly Utility Bill Water Heater Portion 30% Savings Annual Savings
$100.00 $20.00 $6.00 $72.00
$150.00 $30.00 $9.00 $108.00
$200.00 $40.00 $12.00 $144.00
$250.00 $50.00 $15.00 $180.00
$300.00 $60.00 $18.00 $216.00

Industry Studies indicate that reduction of scale and sediment can contribute up to a 30% increase in efficiency.

Navien PeakFlow® chemical-free and salt-free anti-scale water treatment products:

The ECO-friendly and economical solution to your residential and commercial systems.

  • Prevents scale 
  • No chemical​
  • Low maintenance​​
  • Low cost​
  • Environmentally Friendly​

PeakFlow® Scale Prevention Media

PeakFlow® technology transforms potential hard scale build up to soft scale (aragonite and vaterite) that can easily be washed out with water flow. Without PeakFlow, the precipitated calcium carbonate forms as calcite, which is a very hard scale form that builds up in heat exchangers, lowering heat transfer efficiencies and blocking water flow. Calcite, vaterite and aragonite have the same composition (calcium carbonate), with differing structures. PeakFlow protects against harmful calcite hard scale buildup, and maintains optimum water flow performance.

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    Calcite - crystal structure

  • Navien-peakflow-shadowed-img-vaterite

    Vaterite - amorphous structure

  • Navien-peakflow-shadowed-img-aragonite

    Arogonite - amorphous structure


PeakFlow® Models

Residential and light commercial

Learn more about PeakFlow S

Residential and commercial

 Learn more about the
PeakFlow A model


Learn more about PeakFlow C

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