I listened to a hot seat that Greenie did the other day. And he said with a good dual vac motor that used all the usuable power from a regular 15 amp socket, that with a 2" upgrade you could use a portable pretty good up to 100 ft. He said it's best to have a 2" wand too, basically using the same idea of upgrading truck mounts to 2.5 you get rid of the restriction and let the system breath. He also said he would use a second breaker for a good pump to get like 3-400 psi and increase the flow and use a Little Giant heater for heat or that you really have to have 220 power to get some heat and it's not real realistic to use. Anyways it's the same basic idea, best thing to do is plan for it before you buy a porty to set it up just right but you can upgrade them pretty good from what I understood.