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In winter, back draft occurs with natural ventilation in the house, what should I do?

Vladimir

Topic created April 5, 2019

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Good afternoon. I have a problem with natural ventilation in a private house. The house is 2-storey with a basement. The hood is arranged as a single unit, these are 7 channels going from the hood to the roof (boiler, water heater, hood from the boiler room, hood from the basement, 2 hoods from the bathrooms, hood from the kitchen).

The problem is that through two channels located closer to the edge of the roof (kitchen ventilation and a gas water heater), almost always - especially in winter - back draft occurs, and cold air from the street through the ventilation channels enters the house. Can you advise how to solve this problem?

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Expert
Alexey Dedyulin
Expert
To answer
Hello! First of all, you need to check the problematic ventilation ducts for the presence of any kind of blockage.
Since you have a problem with the channels for ventilation of the kitchen and the gas water heater, the most likely reason may be the accumulation of a large amount of steam, which interferes with the normal movement of the draft.
And, since this is a private house, the problem will have to be solved independently. It will be easiest to make additional ventilation, it is best to choose options with minimal noise. This is a cardinal decision, but the most promising and reliable.

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