Here's what 7 separate circuits will get you- 4 vacs, pump at 400 PSI, 6500 watts of electric heat. Usually one is good, I thought I'd try 2.My upholstery tool was so hot I couldn't hold it anywhere near the metal. The wand tube was toasty with the water keyed open too. This was a buddy's place and he let me play. We ran a lot of cords