The Heater Treater™

We all know how important water treatment is to tankless hot water heaters, but it is often overlooked due to the additional cost. Now there is a simple, low cost way to protect and extend the life of tankless heaters.

The Heater Treater™ (HT) was developed by Dennis Falsken, a Professional Water Treatment Contractor with over 20 years experience in the water treatment industry. Being one of the first contractors in his field to install tankless heaters, he immediately saw the need for a low cost effective way to reduce scaling in tankless heaters. Drawing on his experience and contacts in the water treatment industry, the HT was born. Combining time-tested water treatment techniques with current product technology, Dennis created a reliable - low cost - simple way to protect tankless heaters from the effects of hard water.

A simple, low cost way to protect and extend the life of all tankless heaters... Takes the guess work out of filter changes...it tells you when the filter needs to be changed.

The filter protects your tankless heater
in two ways.

The superior ribbed design increases filter capacity and removes sediment down to 5 microns.

Second: As water passes through the filter, 3/4” spheres uniquely located in the interior release a thin protective coating that reduces scaling and protects the tankless heater from the harmful effects of hard water. These spheres are made of a colorless, tasteless and odorless water treatment compound made with 100% food grade material.


The Heater Treater™ 20
Designed for Tankless Heaters rated to 9.5 GPM
System comes complete with:

  • 20” Filter Housing* w/ Head Assembly Featuring
  • Pressure Relief Button
    (simplifies filter changes)
  • Integrated Mounting Bracket
    (makes mounting a snap)
  • Differential Pressure Gauge
    (indicates when filter changes are required)
  • 5 Micron 20” filter with Treatment Spheres
  • Filter wrench


  • 3/4” NPT inlet & outlet ports
  • Dimensions 25 1/4” x 5 3/4”
  • 20” nominal 5 micron filter w/treatment spheres
  • Made with all FDA approved materials
  • Price: $225.00 each
DaSu Dist. | P.O. Box 1621 | Morgan City, LA 70381-1621

Approved by:
American Gas Association

Approved by:
National Propane Gas Association

Approved by:
California Energy Commission

Approved by:
Canadian Standards Association

Manufacturing by:
Takagi Industrial Co.