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Navien PeakFlow anti-scale systems have protected Navien tankless water heaters and combi boilers from damaging lime/calcium deposits for many years. This advanced scale prevention technology is now available to protect your complete water supply system, for residential and commercial applications.
Hot water piping
Heat exchanger in tankless water heater
Hot water outlet on water heater
| 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.
PeakFlow water treatment technology is the ecological and economical anti-scale solution for residential and commercial water supply systems:
PeakFlow® anti-scale technology transforms potential hard scale buildup to soft scale (aragonite and vaterite) that can easily be washed out with water flow. Without PeakFlow, the precipitated calcium carbonate forms calcite, a very hard type of scale 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 different structures. PeakFlow prevents harmful calcite hard scale buildup, maintaining optimum water flow and appliance efficiency.
Calcite scale - crystal structure
Vaterite scale - amorphous
Aragonite - crystal needles
PeakFlow®S
Residential & light commercial
Learn more about PeakFlow S
PeakFlow®A
Residential & commercial
PeakFlow® A is named a 2022 Sustainable Product of the Year by Green Builder Media.
Learn more about the
PeakFlow A model
PeakFlow®C
Commercial applications
Learn more about PeakFlow C