Service the filters roughly every six weeks rather than quarterly, because a canopy matched to a wide gas range moves considerably more air than a standard hood. Soak them flat and work stainless along its brushed grain.
Emilia hoods are wide canopies sold to match the freestanding range below them, usually 900mm or more.
Matched to the range, not to a standard kitchen
A canopy specified alongside a 900mm gas range is sized for that range, which means it is moving considerably more air than a 600mm hood over four burners of which two are typically in use.
The filters, the impeller and the ducting all load correspondingly faster. A quarterly schedule that suits an ordinary kitchen leaves an Emilia canopy permanently part-loaded, and the impeller then takes what the filters miss.
Every six weeks is realistic on a range that gets used, and the appliance gives no indication that it needs the shorter interval because it looks and sounds exactly like any other hood.
Stainless, along the grain
The canopy is brushed stainless and it hangs at eye level above a range that the owner chose deliberately. Work along the grain, never across it, with a soft cloth and warm soapy water, and dry it afterwards because Sydney water spots readily.
Swirl marks on a canopy this wide are visible from the doorway, and they cannot be polished out selectively without redoing the whole panel.
The filters
Baffle or mesh depending on the model, soaked flat rather than put through a dishwasher. Our rangehood cleaning guide covers the method and the impeller housing behind them.
Ducting sized for the kitchen before this one
Where an Emilia range and canopy went into an existing kitchen rather than a new build, the duct run behind the hood frequently did not change.
A canopy sized for a 900mm gas range moving air through a duct specified for a conventional 600mm hood is restricted at the duct, and no amount of filter maintenance addresses that.
The diagnostic is whether the hood was ever satisfactory. One that used to cope and no longer does has a cleaning problem. One that never coped from the day it went in has a ducting problem, and cleaning it will produce a disappointing result either way, so it is worth establishing which you have before paying anyone.
What actually goes wrong
Quarterly servicing on a hood doing double the work.
Swirl marks on a wide canopy.
An impeller nobody has reached, which is where the noise comes from.
Should you do it yourself?
Do it yourself for the filters, on a six-weekly rhythm rather than a quarterly one.
Get someone in for the impeller housing, or alongside the Emilia oven and Emilia cooktop.