if you are running any sensitive equipment ie; computers or tv's etc....... let the genny run for a while first before you plug in.... alternatively use a surge arrestor.
In simple terms a Kva is the same as a Kw. If you read the rating label on the appliance total load should not exceed2.3Kw.However this excludes inductive loads.i.e. lots of fluorescent lights in circuit.(keep to about 60%of total load)