Thanks. I think I got the name of the device, it's called ATS (Automatic Transfer Switch). Is this the things I should install?
I did not do anything that complex. I dedicated some lines (cables) to certain devices and they are behind a UPS (generator in your case). Nothing fancy.
And by "I" I mean "a professional electrician" :) - I just did the design of what I want where.
take the other person's advice - get an electrician.
Thanks, you know what, I'll just use a long industrial grade cord...I guess the lights and fridges can wait a few minutes :D
The only issue is central heating for winter as it's pretty harsh in Canada, but that's a bit too much for a generator I think. Maybe a few smaller heating units instead.