Mostly chainsaws are not affected by the temperature and work efficiently. But, only problem comes when you are using battery chainsaws because battery discharges quickly. That is why I prefer to use electric or gas chainsaws. Both have good power and work perfectly in every environment.
I am not in favour of these chinese chainsaws. I have not used them and never tried to use them. But, yes if you don't need chainsaw quite often, instead of moving towards chinese, you can buy cheap chainsaws of well-known brands like oregon, remington. You will find chainsaws under 100 which...