Sorry, mate, but a generator for apt. use is no
good. There are several issues that apt. living
cause that make a generator unsafe to use as well
as very impractical.
There are the exhaust gases that will need to be
vented outside. Then there is the matter of fuels
and oils in your living area to deal with. If you
deal sucessfully with those items the killer is
the power transfer switch to hook into the apt.
wiring safely to prevent line backfeed when the
power comes back on.
The ONLY safe practical way to feed electricity
to ANY apt. building is a BUILDING GENERATOR SYSTEM
Sorry to say that while there are many really good
small generators NONE is intended for apt. (or
enclosed) dwellings.