The HydroJet Retractable (HJ-R) boiler cleaning system represents a major breakthrough in furnace water cleaning technology. Earlier system articulated the nozzle at the boiler wall; the HydroJet-R cleaning system extends the articulating nozzle into the furnace, vastly improving cleaning area coverage and effectiveness. All this combined with the HydroJet-R boiler cleaning system consuming up to 70% less water and eliminating the requirement of continuous cooling air will ultimately lead to greater boiler efficiency and in turn megawatt savings