"If you don't fix the hood - I'll write out a fine": the gasman warned. Began to understand
A specialist from the gas service came, checked the ventilation with an anemometer, said that it was necessary to clean, the reading was less than expected. The hostess, of course, was indignant, but he personally understood the worker, it's still safety.
Cleaning
Prepared thoroughly, expecting the worst, this is when the channel is clogged with foliage and other debris. To do this, I have the 20th metal-plastic pipe (I use it as a guide), and a piece of a rod for pulling the cable. I put a pipe into it, a bar into it, push it until I clean it.
I checked it in an old-fashioned way, indeed, there is almost no traction.
I decided to look with a mirror from a bike, it's very convenient, you turn it right. The channel is in soot, it used to be a stove heating chimney, an old house (Khrushchevka).
It turned out that the pipe is clean, just covered with cobwebs, shuffled the "guide" a couple of times. Metalloplast allows bending the pipe, thereby avoiding obstacles.
In order to finally destroy the web, he burned a couple of newspapers in the channel.
I looked through the mirror, everything was clean, I checked it again with a match, there was a thrust, the flame was pulling horizontally (see the first photo).
I installed a new grill, instead of the old metal one, as recommended by the inspector. By the way, the weather for our steppe was calm, which is very rare. Just in case, I recommended the hostess to turn on the stove next time in order to heat up the kitchen and create a draft, but I think it will do without it.