More then likely you will need a controller of some sort to run either setup. You need to be able to control how much heat you put into it.
The easiest option is a 220v controller and element. A 4500w or 5500w element is a nice size for a keg. The problem with this setup is having a 220v 30amp circuit to plug it into where you want to run your still. Most houses the only plugs are in the kitchen for the stove. And laundry room for the dryer. This is the best option for quicker heatup times. And simplicity of connections. One element one plugin and one controller. And plenty of power to run what ever you want. If you feel the build is more complicated then what you want to do. Look in the classified section. MuleKicker can provide you with a great setup for this. All you would need to do is mount the element in your keg and add a plug to fit your plugin.
A 110v setup is a little tricky too. In the fact you need two plugins on separate circuits having two separate circuit breakers. One circuit breaker will not handle the load. Most rooms are powered by one circuit breaker. So you would need to run it from one plug in this room and one in that room. If you to this route and need a long cord. Make sure its a big one. Like a 10/2 or so for a cord longer then say 8 to 10 foot. 8 to 10 foot or below a 12/2 cord will work.
For a better example of this setup check out this thread I put together about mine. viewtopic.php?f=2&t=27967