A baby cow is called a calf. Adult male cows are called bulls. Adult female cows are called heifers until they give birth; after they have given birth, they are called cows.
As long as there is a fuel supply of natural gas or propane, a well-maintained backup generator will keep running. If the Generac generator is running on propane, with a 500-gallon tank, it should run 24 hours a day for over a week. How loud are they? Generac generators are very quiet.
If you are unsure which kW rating you need use our Generator Sizing Tool. Generac offers the most comprehensive line of air cooled generators in the market today. Generac generators come in a variety of sizes ranging from 6kW to 22kW. By now you should be pretty sure of the size of generator you are looking for. Only consider a home standby generator if you are looking for a unit that will be permanently affixed to your home.