To ascertain what appliances you are able to run over a 4000 watt generator concurrently, you have to observe these ways: Generator Load Lender Testing a generator entails implementing a synthetic load to validate that all Principal components are correctly Performing. CO detection: More recent generators Use a carbon monoxide https://homepowerbackupgenerators19753.blazingblog.com/29863876/the-smart-trick-of-home-power-backup-generators-that-nobody-is-discussing