Lanse, if you're going to run tools with it, its going to need a sufficient air supply/reserve (tank) or else you'll run the pump to death and you'll never maintain a constant or even flow of pressure to your tools. The same holds true even more so if you're going to be painting with it. Also, you need to be concerned with house wiring and current draw...house wiring gets hot, and so does the pump if it hasn't got sufficient current flow. First figue out what your service is to the outlet you'll be using (10amp, 20amp, 30amp?) before you decide on anything. Once you know that, figure out how often or what you'll be using it for, and go from there. I once inherited a compressor that had two 2HP heads, drier, and 100 gallon tank. It was 208 3-phase which is hardly residential or ag. It was nice too, but no use to me. I put wheels on it, rolled it to the road and put a sign on it that read "Free for the taking, I'll help you load it, don't bring it back". It was free to me, so I figure that I'd let someone else have it to ponder over...away from me. Now I've got a 5HP 220VAC unit on a 30amp double pole breaker in the barn with a 60 gallon tank and a smaller portable 11 gallon 6.3/3.6 CFM Coleman in the garage that draws 15amps on 110. As I recall, the Coleman cost me about $300 and the bigger Sears was about $1,000. They both have their places for their jobs. Somewhere I've got a tiny 2 gallon Cambell Housefeld that I bought from Walmart for like $100 for recharging the well tank so I didn't have to drag a house through the house, but after I saw "Made in China" on it, never used it again...dragged the hose through the house until finally went deep well. Maybe I threw it out too, I don't recall or know where anything is in the house...people keep moving and hiding stuff on me. Good luck.
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