For those not mounting the projector, but, say, placing it on a table top, note that the venting in the front works this way: If you are facing the front of the projector, the intake vent is on your right. That makes the left side the exhaust vent. It blows air out to the right front. You don't want to be sitting within 2-3 feet of the path of the hot air. Don't worry, you'll have plenty of other places to sit.
Underneath the 3020, are two screw thread adjustable front feet for your tabletop use convenience. There's a single, wide, rubber rear foot in the back center, without adjustment. Since the Home Cinema 3020 has no lens shift, and 0 lens offset, if you put it on, say, a table the same height as the bottom of the screen, you'll need to raise the rear slightly (or use lens shift). This can be a minor nuisance at times for folks setting up in different rooms.
On the top of the Home Cinema 3020, behind the lens, are its lens controls; recessed focus and zoom dials. Right behind them is a small slider, which adjusts the image for off angle setups. (Thankfully, there's a center notch, so you can tell where the "no correction" point is).
Back center is a typical control panel. All the inputs and connectors are located on the back panel and will be described below.
The lamp cover curves from the left side (facing the projector) and is mostly on the top. Of course, this tells you that if you have mounted the Epson projector, you won't have to unmount to change the lamp. The long life, I should note, is 4000 hours at full power according to Epson. Relax, enjoy it for a few years. Even very heavy users should get at least two years from the lamp.