I have two Honda Eu2000's hooked together for the ~4000 watt output. I keep them in an outdoor small enclosure that I put ventilation ports in and also an old-school metal box fan for output venting. When either generator is running, the fan is as well. I also have the caps modified with external fuel lines, tee'd together into a 12 gallon marine gas tank. I can pull the tank out, and refill with fuel without turning off either generator. I get between 28-105 hrs. of run-time before having to refill the tank. At full load, I would refill the tank once a day, but I tend to average every 2-1/2 days without running below 1/4 tank. Nice to know it will run while I sleep. The enclosure is placed at the back of my garage, with interior access only to it from the garage, and stacks of 7 cords of wood in front and sides of it. From all points outside, with both generators running full load, you can barely hear it from the road, but if you do, it just sounds like a generator or mower running somewhere down the road, or a street over, or somewhere, but can not be pin pointed due to the wood piles bouncing the sound all around. I always carry 40+ gallons of additional fuel on hand, stabilized and rotated so that no gas in my system is more than a year old. The 12 gallon tank, I use my loader to lift and hold, while I use a siphon pump to drain into my SUV once a year. I start both of the generators bi-monthly and let them run for an hour. I have them hooked to a simple Reliance 6 circuit kit, which does everything important in the house, except the 220v water tank and stove. Stove is easy to replace with using my propane grill/stoves and the water tank is set up to flip two sets of plumbing bypasses and switch to a 110v small cabin tank I have installed. Finally, I will turn off the main breaker, go find my wife and say something like "Oops, the power must be out in a bad blizzard, and I am at work or out of town. Hope you don't freeze to death. What are you going to do?" She will run through the whole startup process (via a laminated sheet that is located in several places en route to the generators.) I also have auto-on emergency lights installed in the outlets to light up the dark house and path and even have a headlamp placed at the top of the stairs for her to put on. I have tried to think of it all, for her safety, more than my convenience. She is good at starting it all up. I'm always home now at nights, but it is good to know she can survive if I am not. And, I just think it is fun to sit down and design all this stuff out. love it!!