About Cold Water Pressure Washers
Cold-water washers range from £80 entry-level Kärcher K2 units to £4,000+ trade machines from Nilfisk MC and Comet KS. Pressure runs from 100 bar (domestic) to 250+ bar (professional).
Key things to check: pump material (aluminium for occasional, brass for daily use), motor type (induction is best), and total-stop function. A 6 L/min flow rate is the practical minimum for patio cleaning.
Choose cold-water unless you specifically need to dissolve grease or sanitise food surfaces — then a hot-water diesel-burner unit is worth the extra cost.