If you buy steam cleaning equipment for a restaurant kitchen, a central kitchen or a food-processing line, the hood and duct are usually the hardest items on the cleaning list. Grease there is baked on, layered and spread over hoods, filters, fans and duct walls that are awkward to reach. Suppliers who list a "commercial steam cleaner" for kitchens mean very different machines, so a few concrete questions tell you more than a brochure.
What surface and grease condition will the machine face?
Describe the deposit to the supplier as light film, workable grease or hardened buildup, and name the material: stainless steel hoods and filters, painted duct panels, or mixed surfaces. Hard, aged grease on a hood that has not been stripped for months is a different job from a nightly wipe-down of a stovetop. A supplier who answers seriously will ask for a photo and the time since the last deep clean before recommending a machine, because that answer sets the required steam temperature and pressure.
PowerDe states 160° steam temperature and 0.8 MPa vapor pressure for the Fixed Steam Cleaning Machine PowerDe HW02, along with a choice between dry steam and wet steam on the same unit. Use those published figures as your benchmark and ask the supplier which of the two modes they expect you to use on hood interiors. Dry steam carries less water, which matters when you clean above working equipment and cannot accept runoff.
Is the machine fixed, mobile, or hand-pushed, and where does it sit?
Steam cleaners for this work differ by how they reach the job. A fixed unit runs on mains power and stays near the kitchen or cleaning area; the HW02 measures 1,200 × 800 × 1,200 mm including handles and runs on 220 V, so confirm your supply and the space it will occupy. A hand-pushed steam cleaning machine such as the HMW3 moves on castors to the point of work and runs on a 48 V battery, which helps when the cleaning route crosses areas without an outlet nearby. Decide whether one unit serves one kitchen or moves between sites, and ask which configuration matches that route.
Can the unit keep producing steam through a full cleaning shift?
Ask how long the machine holds steam at the stated pressure and how long a refill and recovery take. The HW02 carries an 80 L SUS304 tank and 6 kW of heating power; the page does not publish steam runtime, water use per hour or recovery time, so request those numbers and the duty cycle in writing. Ask also what the water inlet arrangement requires: the HW02 takes tap water through a 4-point internal-tooth joint (1/2 inch), which needs a compatible connection where the machine will be used.
What comes with the machine, and what does the supplier cover?
Confirm the nozzle and wand set for hood interiors and narrow duct openings, the hose length, and whether the machine's listed protection features — the HW02 page lists leakage, short-circuit, high-temperature, water-shortage and high-voltage protection — matter to your site rules. Then confirm the practical terms: warranty scope, spare parts such as heaters, seals and nozzles, and the support contact for your region. Ask what a supplier will do if a heater or pump fails during your cleaning window, since downtime decides whether a scheduled clean is completed.
Ask for a test on your own deposit
The clearest answer comes from a trial. Send a removed hood panel or filter with the grease condition you actually have and ask the supplier to clean it with the machine and mode they recommend, then report the time, the mode used and any residue left behind. Ask whether you can run the same trial on your own site with the machine on hire or on approval, and what conditions apply. If a supplier will not arrange either test, treat their performance claims as unproven until you have seen the result on your own equipment.
PowerDe is a Shenzhen-based manufacturer of cleaning equipment and can quote configurations for hood and duct work from your description of the deposit, the surfaces and the cleaning routine. Send those details with a photo through the contact page and ask for the runtime and accessory figures listed above before you compare quotes.
