Flo-Rite-Temp® Model FRT665DW

Double Wall

Flo-Rite-Temp Model FRT665DW Instantaneous Steam/Water Heater pre-piped single temperature packaged assembly designed for a Non-Recirculating Hot Water System.

Flo-Rite-Temp Model FRT665DW double wall instantaneous water heater uses a double-wall tube to provide positive separation of the steam and water in the heat exchanger. The area between the walls of the tubes vents to atmosphere so you can detect tube failure without cross-contaminating either the steam or water. The Flo-Rite-Temp FRT665DW is well suited for all hot water applications where steam is available and plumbing codes or safety requirements prevent the heating medium and the potable water supply from being cross-contaminated.

Flo-Rite-Temp Model FRT665DW Double Wall Pre-Piped Single Temperature Systems are fully assembled and include the following installation components:

  • Steam Trap
  • Air Vent
  • Thermometers
  • CIP Connection Port
  • Flow Control/Isolation Valves

Ideal for both new construction and retrofit installation within an existing building infrastructure. Flo-Rite-Temp Model FRT665DW is designed to fit through a standard 32" doorway.

Flo-Rite-Temp Model FRT665DW Instantaneous Steam/Water Heater features a 6" diameter shell and a non-helical straight internal tube bundle with end cap.

Flo-Rite-Temp Model FRT665DW has 65 GPM capacity with 15PSI steam at a 100°F temperature rise.

Flo-Rite-Temp Model FRT665DW features a unique feed forward design which features a differential pressure diaphragm actuated mixing unit integral to a shell and tube heat exchanger.

The Flo-Rite-Temp Model FRT665DW mixing unit manages the water flow through the heat exchanger based upon downstream hot water demand and eliminates the requirement for a modulating steam control valve.

Operating on constant low pressure (2-15PSI) steam, the Flo-Rite-Temp Model FRT665DW mixing unit supplies water to the heat exchanger where it is overheated and then returned to the mixing unit for proportional re-mixing with cold water to a pre-set outlet temperature.