In article ,
polygonum_on_google wrote:
In our kitchen we have a perfectly ordinary cooker hood vented outside.
Trouble is, there is quite a draught from it. It exits into the gap
between our house and our neighbours' - which can be pretty windy. Fine
when cooking, but makes the whole kitchen a bit chilly in the winter.

Is there a simple (but effective) way of reducing airflow when we are not
using it?

Obviously we could shove a rolled up newspaper in the hole - but that is
hardly convenient!

The vent on my cooker hood has flaps on it which only open when the fan is
running. You used to be able to get electrically operated ones , too.

--
from KT24 in Surrey, England
"I'd rather die of exhaustion than die of boredom" Thomas Carlyle