Sizing the Generator
Global Power Products advises you to purchase a generator that is powerful enough to run the largest appliances and motors you need during a power outage. To determine what loads you can support with a portable generator, you must look at both the "running watts" and the "starting watts" requirements of the appliances you want to operate. For example, when your furnace motor first starts up, it will require approximately three times more starting watts for a brief one- to two-second period than the running watts needed to operate it for extended periods. To assist you in determining what loads you can operate on your portable generator, appliance usage tables have been provided with information on running watts and starting watts for common household appliances. In most instances, you will want to purchase a generator with a continuous rating of 4,400 watts up to a maximum of 10,000 watts .