Hi Tony,
I have had a cheap 2kva for 6 years and still going well. Can take a little too get started when I don't use it for 6 months, but as it is an electric start it is no back breaking effort.
The only thing to remember is that they like clean oil. You need to change it around every 40hrs of use.
It actually provides better power over a 30m extension cord than a Honda EU20.
Get at least a 3kva unit and make yourself a 3pin male to male adaptor. That way you can cut the main breaker, then plug the gen into any house socket and power the whole house.
Just remember to disconnect gen before reconnecting the main breaker.
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