Every situation is different. The first goal is to keep the looter from entering the house, in the first place. If an armed looter gets into the house and you do not have a firearm, it is not wise to directly confront the invader. Surprise him from behind with a golf club swing to the head or leave the house, but don’t try to defend yourself with maneuvers like kicks and chops unless formal training has been completed.
Of course, there are desperate situations in which you may have to charge the person, while ducking and weaving. If so, try to grab a shield first, like a television tray or piece of metal roofing.