Welcome to all the new folks with nanos and those who will soon have one!
You may want to do yourself a favor and read some of this thread from before you ordered your nano. Have seen a bunch of questions from the past few days that are basically nano 101 and are discussed at length regularly. Don't have to go back and read 537 pages, just skim that last 50 or so pages and look at things that discuss technique and tweaks (as opposed to shipping, "oh that's cool/sucks", massdrop, etc). Also, learn to use the search function at the top of every page. It isn't the greatest search engine, but works well enough - especially for most questions or any of those that come up regularly.
Nano is very versatile!! This is one of the greatest things about it as it allows you to get your nano to perform in different ways to do what you are looking for. There are also subtle differences from nano to nano. For instance, heat settings from nano to nano aren't going to be exactly the same. Someone elses heat setting may be up to a few numbers different on the dial than yours.
If just starting out, it's usually easiest to get things set to around "medium" and start producing vapor. Practice a few sessions and get a feel for it. Then, adjust your heat slightly, move your screen a little up or down, play with your draw speed, etc. Usually, a good place to start is to put your screen at the level of the notch on the long arm of the e-pik and heat around 6.5. IME, ground material makes it easier to get a feel for things. If vapor is too thin, nudge the heat up just a touch (1/4 setting at most) or nudge your screen closer to the heater. If you vapor is too heavy, or you're getting close to combustion, turn it down a bit or move your screen a bit further from heater.
Whatever you do, find your own spot first and go from there. Really shouldn't take more than 1/2 hour and a few loads from a warmed up nano. Much better than to go with what someone else posts here for what they like with their nano. Why? Their nano's dial may be set a little differently, screen may be at a different depth, material and grind may be different than yours, they may be sitting in a stuffy 85 F degree room, and you may have the a/c and a fan on, their a/c power may be a little different than yours, they may be going through an intricate bubbler and you may be dry stem (or the opposite), they may like to vape until roasted to almost black while you like yours lighter, etc, etc, etc. All of these things and more can have some effect on nanoing - some more than others.
It's very easy to get it working out of the box, but not too hard with a little practice and tweaking to get it to perform exactly how you like - and have the opportunity to adjust quickly/easily for different situations.
I get fantastic tatsy vapour at 6.5 and can milk a bubbler opaque so the downstem isn't visible easily.. 
