what ever you like, i use a 3.3 kva gen set with a 2000 watt vacum, you should use at least a 2.5 that way you can use a 30 meter cord and set your geny away from the crevice your working...cheers
Week 35 Wrap: HotCopper’s top watched; ‘iron ore winter’ has started; Oz inflation @ 3.5% MoM; Harris fracking flip