Yeah good idea. But to be honest. Most of these gens will take some serious abuse before they are broken and wont work. Most of them have shut off switches if the oil gets low as well. I'm not saying run it till it stops or anything like that, I'm just saying most of them are pretty tough. We use them on the job at work all the time, and I have seen gens run pretty much straight for over a year and not have problems. AND the guys didn't take care of it at all. The ran it till it stopped and then they checked the oil, not the other way around. Constant heavy loads on them etc.
It's not good for them to do that, but the are pretty tough little machines.
I have one of the new Rigid gens that has an hour meter on it, it also has a meter that tells you exactly how much power it is using so you know where your at. It's on wheels as well and has a handle that folds out like a furniture dolly so it's easy to move around. It's a couple hundred pounds though so the handle helps a LOT. All in all it's a great gen and I was impressed with how easily it handled my tank, furnace, house, and my neighbors stuff lol. Happy I was able to loan it out to friends who still don't have power for this storm, and happy it worked well for me and friends after Irene.
They are a pretty cheap insurance policy when you think of the sort of money you put into a tank. Like I posted in another thread you can pick up a small one that will run the bare bones on your tank for $100. Heater, skimmer, return pump, power-head. Not too bad. A little more money and your running gravy stuff. My Rigid was a lot more, but I wanted to be able to run my house on it. I do need to wire in a transfer switch one of these days.