1. What is being cleaned: surface grease or built-up residue?
Wipe-down grease on a daily-cleaned hood is a different task from the sticky, hardened film that accumulates where weekly cleaning lapses. Ask suppliers what their machine changes about the work: heat, pressure, or both. A range hood steam cleaning machine that only supplies hot water at pressure will still depend on detergent and scrubbing time. A machine that delivers dry steam loosens residue with heat and leaves less standing water on overhead surfaces, which matters when working above cooking lines. PowerDe's Fixed Steam Cleaning Machine HW02, for example, is documented with dry-steam and wet-steam modes plus a vacuum function, so one unit can switch between softening residue and recovering water.
2. Can the machine run a full kitchen shift without stopping?
Compare duty cycle, not just output. Useful questions to send suppliers: What is the heating power? What size water tank feeds the machine? How long to reheat after the tank empties? Is there low-water and over-temperature protection? A small tank on a busy site means frequent pauses and an operator waiting rather than cleaning. The HW02 page lists an 80 L SUS304 tank and a 220 V supply, so its specification suits a fixed cleaning station in an central kitchen degreasing workflow rather than a portable unit carried between floors. If your crews clean several sites per day, ask instead about mobile models in the same cleaning equipment series.
3. How much water and detergent will the job actually consume?
Ask each vendor to state water use per hour and the detergent you must buy alongside the machine. High-pressure cold water moves grease around; it also floods floors, drains and electrical enclosures. Steam cleaning relies mostly on temperature, so it reduces both water volume and chemical handling — a practical concern in kitchens where slip risk and cleaning-product storage are audited. Where residue is thick, expect a short dwell time after steam application and a wipe or vacuum pass; no honest supplier will promise instant removal of years of build-up from a single pass.
4. What protection and training does the equipment require?
Steam at high temperature is a burn hazard, and shared kitchens mean the machine may be used by rotating staff. Ask: what safety protections are built in, and which consumable parts wear out? The HW02 listing describes leakage, short-circuit, high-temperature, high-voltage and water-shortage protection. Confirm the protection set for the exact unit you are quoted, because listings for related models are not worded identically. Also request the operator training time and spare-part lead times; downtime in a central kitchen has knock-on effects on service.
5. Who will demonstrate the machine on your own equipment?
Treat a supplier test as part of the evaluation, not a courtesy. Send photographs of your hood canopy, filters and duct access, and ask whether the supplier can clean a panel or filter section from your site with their machine. Shenzhen PowerDe Automation Precision Equipment is a Shenzhen-based manufacturer of intelligent cleaning equipment and also supplies process and automation equipment, so the same technical team can discuss fixed installations, mobile units and customised configurations. Contact them at sales@powerde.net or +86 13023198376 to describe your kitchen layout and cleaning frequency, and ask what demonstration you can run before ordering.
