What is a filterless chimney and how does it work?

A filterless chimney as the name suggests does not come with a traditional filtration system. There is no stainless steel baffle filter to trap grease and oil in a filterless chimney. Due to this, the majority of oil and grease gets past the metal mesh and into the duct and out the exhaust. It is less restrictive and hence the flow of air is more.

But that does not mean that the grease and oil are also carried away with the air. Over time, the heavy oil and grease particles do get stuck in the plumbing of the chimney and as well as in the inner parts. You might need to call a professional to clean the blower housing and other parts in the vicinity as the buildup gets more.

How does a filterless chimney work?

Just like any other kitchen chimney these days, a filterless chimney has a blower fan and a heating element wrapped around it. When you turn ON the chimney, the blower motor starts and rotates the blower fan. This action creates a vacuum inside the housing and sucks in the smoke and grease produced by the cooking. In tandem, the smoke and grease that got drawn in go out the exhaust port through the ducting.

The heating element is used to loosen up the oil and grease trapped in the blower fan. After you have used the kitchen chimney, it needs cleaning periodically. With the press of a button, the heating element draws current and raises its temperature. The heat is diffused into the blower fan and so the oil and grease trapped also gets heated and consequently melted away.

Further, the oil and grease dripping is collected in the grease tray or an oil collector at the back of the metal mesh that can be washed with dishwashing liquid and hot water.

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Is filterless chimney good for Indian kitchen?

Having used both the baffle filter chimney and a filterless chimney, I’d say the baffle filter chimney performs far better in an Indian kitchen than a filterless chimney. In our Indian kitchen, we used a lot of oil and spices. This increases the smoke’s density and it gets heavy. If not trapped by a filter, this heavy smoke will pass into the blower fan and other parts of the chimney and may get trapped there.

With the majority of Indian households never cleaning their chimney’s inside, a filterless chimney where a lot of grease and oil can get trapped inside the housing will become less efficient over time. Whereas, in a baffle filter chimney, the filter traps the majority of oil and grease and does not the inner parts get affected. You just need to clean the baffle filter more frequently.

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What is a filterless auto clean chimney?

A filterless auto clean chimney does not have a baffle filter for trapping oil and grease but eases the cleaning with auto-clean technology. The auto-clean technology employs a heating element that is wrapped around the blower fan inside the chimney’s metal housing. When the auto-clean function is turned ON, the heating element raises the blower fan’s temperature and let the trapped oil and grease melt away. The oil dripping is then collected by the metal mesh that routes it to the oil collector at the back.

The whole process takes about 10 minutes to complete. If you have not cleaned the chimney in a long time, you may need to repeat the process to completely clean the blower fan.

How to clean the filterless chimney?

Cleaning is a filterless chimney’s forte as most of them have heat auto-clean technology. Even if your filterless chimney does not have that technology, cleaning the filterless chimney is an easy task. Just follow the steps below.

  • Turn OFF the main power supply of the chimney and unscrew the metal mesh of the chimney. Take the oil collector from the back and drain the oil.
  • Now, in a tub, pour hot water and dishwashing liquid to make a cleaning solution. Place the metal mesh in it. Pour this solution in the oil collector, too.
  • Wait for about 20 minutes.
  • Now, take an old tooth brush and start cleaning the grooves of the metal mesh. The grease should come off quickly.
  • After cleaning each and every groove, take the metal mesh out and place it under running tap water to clean the remaining loose grease.
  • Take some paper towel and dry the metal mesh. This will also help in cleaning the loose oil particles, if any left.
  • Repeat the process with the oil collector, too.
  • Now, with some paper towels, start cleaning the inside of the chimney. There should be visible oil stuck at the body and the blower housing.
  • When the cleaning is done, screw back the air dried metal mesh and the oil collector.
Also Read - How to clean a kitchen chimney - A simple guide with photos

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