You can run the most critical household equipment with a generator for sale rated at 5,000 to 7,500 watts. These include things like a refrigerator and freezer and lighting circuits. A generator with around 7500 running watts can run all these appliances at once. Most modern homes run very energy efficiently, but if you want to run AC or hot water heaters it changes things. Give us a call 1300 436 738 and we can discuss your needs ensuring that you can make a truly educated decision with regards to your needs.