How to Connect a Portable Generator to a House: 14 Steps MethodTips Determine the essential appliances in the home you cannot do without. A petrol-driven generator with a rated power of about 3500W will serve for lighting, TV, fans and a fridge or freezer. The rated power is usually written on the body of the generator and it is that power the generator can deliver continuously for an average of 12 hours on a single tank of fuel.List the appliances and electrical devices you plan to use, then look at their wattage or power requirSee all 6 steps on wwwhow88%(48)Published: Jan 30, 2011Views: 621K Easy Generator to Home Hook Up: 14 Steps (with Pictures) Easy Generator to Home Hook Up: A generator is a core component to many people's emergency preparedness plans. (Maybe you have a cool charcoal powered or a multi-fuel generator.) However many fail to think through how exactly they will power the items they want to run when the..