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Why should there be exactly 3 ventilation ducts in the kitchen?

Elena

Topic created April 4, 2019

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Hello! Help me please. In the new private house, the kitchen-dining room is 98 cubic meters. Of gas appliances - turbocharged gas water heater and gas stove. When drawing up the gasification project, it was recommended that at least three ventilation ducts with a diameter of 150 mm be made.

Question - why do you need to do at least three?

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Expert
Vasily Borutsky
Expert
To answer
Good day, Elena. It's not about the area of the kitchen or its cubic capacity. The question is your safety.
Each channel has its own purpose:
1. The first - for forced hood over the stove.
2. The second - under the chimney for a water heater.
3. The third is for natural ventilation.
Why? This is due to the installation of a gas heater in the kitchen. During operation, it emits carbon monoxide - the most dangerous for humans. Leaves through the chimney from the room, but partially enters the room - and here the presence of natural ventilation will save lives. Its main function for your case is to save life. Automation of carbon monoxide intake can be delayed. Especially when cooking near the stove.
The main danger is that it is odorless and to lose consciousness it is enough to take one full breath. In general, this is not a recommendation, but a mandatory requirement for gas facilities. If this violation is detected, the heater will be sealed prior to removal of the forced hood over the stove or ventilation duct device with natural ventilation.

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