The Powerflow Flushing Machine MK III is a powerflushing machine which uses a targeted, powerful freshwater flow to remove sludge, scale and debris quickly and thoroughly from existing and contaminated domestic central heating systems. It is compatible for use with all Fernox Cleaners. After just one site-visit, the boiler’s optimum energy efficiency rating and overall system performance level can be restored; eliminating boiler noise and minimising fuel consumption.

  • Powerflush central heating systems to remove corrosion debris, sludge and scale
  • De-scale boilers
  • Overcome boiler noise and circulation problems
  • Clean a system with just ONE visit to site
  • Use with Fernox products only
  • High-temperature operation to enable faster cleaning

What's in the box?

  • 1 x Powerflow Flushing Machine MKIII
  • 2 x Flow/Return 3/4" yellow hoses, high temperature (5 meters each)
  • 1 x 3/4" Dump Hose, pre-assembled (8 meters)
  • 1 x 3/4" Overflow Hose, pre-assembled (8 meters)
  • 1 x 3/4" Mains Fill Hose, pre-assembled (8 meters)
  • 2 x Pump Union Elbows
  • 1 x User Guide

View the user guide

Two-year return to base warranty 

Use a Fernox Powerflow Flushing Machine when:

  1. Fitting a new boiler to an existing system Fitting TRVs or up-grading to a fully pumped system
  2. Cleaning drop feed radiators in-situ
  3. Removing black sludge
  4. Overcoming circulation problems For curing boiler noise and for boiler descaling

Product Specification

  • 1100W pump/motor
  • Circulation rate of up to 99 l/min
  • Proportional full bore dumping at 60 l/min
  • Rated to 85°C operating temperature
  • CE marked pump
  • Reversible flow action
  • 50 litre tank capacity
  • Integral double check valve on mains fill
  • Light weight


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