A commercial kitchen is one of the harder places to clean with steam, and the difficulty is not the temperature of the steam. It is the room: hot surfaces, limited clear floor space, ductwork overhead, a service door that has to stay usable, and a cooking programme that cannot simply stop. Before anyone quotes a machine for a restaurant extraction system, the site itself decides most of what the job will look like.
The fixed steam cleaning machine listed on our site is a stationary, mains-powered unit that switches between dry steam and wet steam, with an on-board tank, a pressure rating and a heating load that the building has to accept. Those are the numbers that get compared. The site conditions below decide whether those numbers can actually be used.
What is actually overhead, and how high can you reach
Extraction hoods sit above the cooking line at a height set by the appliances, not by the cleaning crew. Measure the vertical clearance, the depth of the hood face, and how far the duct runs from the wall before deciding what tools belong on the list. A unit on castors with a fixed wand cannot follow a hood that rises behind a wall-mounted screen, and a hose that is too short forces the operator to move the machine twice per bay.
Grease inside the duct is a different material from grease on the hood. Deposits on the hood face are soft and recent; deposits inside a horizontal run have been baked and oxidised for months, and they bond differently to galvanised steel. Dry steam, which carries less free water, is the mode normally chosen for these vertical and overhead surfaces because the operator can watch the deposit lift and stop before water runs into a bearing or an electrical housing. The dry and wet steam cleaner description on our product page exists for exactly this reason: the mode is a decision per surface, not a setting you leave alone.
Floor drainage and water that has to go somewhere
Steam condenses the moment it meets a cold surface. On an overhead hood that condensate falls, and where it falls determines the method. If the floor under the cooking line has a channel drain and a fall to it, condensate can be managed as it forms, and the crew works in short panels from one end of the line to the other. If the floor is sealed with no drain, water has to be captured at the surface and lifted out by hand, which slows the job and adds a step that is easy to skip when the kitchen reopens at five.
Check the drain before the shift, not during it. Old grease in a channel drain re-emulsifies under hot water and moves; it can block a trap a few minutes after the crew believes the job is finished. Restaurant kitchen work of this kind is described in our material on kitchen cleaning process review, where the review step is the one most often dropped.
Power, water and the tank: what the room can give you
A mains-voltage steam unit has a heating load, and the kitchen's panel is shared with the fryers, the ovens and the refrigeration. Confirm which circuit the machine will be plugged into, whether it is on protection intended for wet environments, and whether the socket is on the side of the kitchen where the work actually happens. A cable that has to cross a cooking aisle is a trip hazard and a reason the crew will not finish the far end of the hood.
The on-board tank sets how long one fill lasts and how often the machine has to be stopped. On our Fixed Steam Cleaning Machine PowerDe HW02 page the tank is stated as eighty litres in stainless steel, with tap water as the inlet and a specified fitting. Read that as a constraint, not a convenience. A kitchen with an under-sink tap and no quick connection near the cooking line loses minutes at every refill, and an eighty-litre tank is a job-sized decision rather than a detail.
Water quality belongs in the same conversation. Hard supply leaves scale inside a heater and inside a nozzle orifice; the effect shows up as lower output long after installation, and it is charged to the machine rather than to the building. If the site supply is hard, note it when you request a quotation and ask which protection the machine has against running the heater without water.
Access windows, and how long a cold hood takes to come back
Ask when the extraction system can be touched. In most restaurants the window is between close and the next morning's prep, and it is shorter than anyone wants to admit. A fan that can be isolated and locked off is required before a person works under a hood; a fan that cannot be isolated means the fan itself has to be cleaned first, and that is a separate task with its own access needs.
Wet surfaces need drying time before the kitchen is open again in practice. This is where mode choice changes the schedule rather than the finish. Working overhead surfaces in dry steam leaves far less standing water than a wet-steam pass, so the hood can be returned to service sooner. Cleaning a grill face with restaurant grill grease cleaning in the same visit adds wet surfaces on the cooking line, so sequence those surfaces last, or plan the drying time for them separately.
What the machine has to survive in the room
A kitchen floor is wet, greasy and hot, and equipment is knocked against trolleys and pallets. Look for a frame that tolerates contact, a tank material that does not corrode in a greasy, damp environment, and stability that does not depend on someone holding the machine steady while a wand is pulled. Our HW02 specification states dimensions that include the handles, which is the honest way to quote a footprint, because handles are what catch on a doorframe.
The safety items on that page are worth reading one by one against your own conditions: leakage protection and short-circuit protection where water and mains power share a room, high-temperature and high-voltage protection, and protection against running the heater without water. These are the failure modes a kitchen actually produces. When an auditor asks what limits the equipment, that list is what you will be shown.
For an in-house crew rather than a specialist contractor, the machine is only as controlled as the person holding the wand, so ask about training and support when you enquire about PowerDe cleaning equipment.
Checklist before you request a quotation
Write down six things and the quotation becomes comparable between suppliers instead of a guess. First, the hood layout: face depth, height above the appliances, and where the duct run is horizontal. Second, the fan: whether it can be isolated and locked off, and by whom. Third, drainage: location of the nearest channel drain and whether the floor falls toward it. Fourth, power: which circuit, on which side of the kitchen, and what protection it carries. Fifth, water: where the machine is filled, how far that is from the cooking line, and how hard the supply is. Sixth, the access window in minutes, including the time needed for surfaces to dry.
Those six answers also decide whether a fixed unit is the right shape of machine at all. A site with a long extraction run, several kitchens, or no fixed power where the work happens may need a different configuration. Our customized steam cleaning equipment service exists for that case: send the six answers, and the specification is built around the room rather than the catalogue.
