The next step, you need to decide on the type of electric generator. It can be gasoline or diesel. Say exactly which one is better. Everyone has their own pros and cons of. Everything will depend on the tasks that he is designed to solve in your house. Gasoline, for example, is more fire hazardous, but diesel is very noisy. If you purchase a generator only as a source of emergency electricity, then the power of a gasoline generator is quite enough. Diesel, usually more powerful.