Pellet stoves can be vented vertically through the roof or horizontally through a side wall. Its always a good idea to get some vertical rise with the L-vent pipe, before venting horizontally through a side wall.

Can you vent a pellet stove out a window?

You can pass pellet vent though a all as long as you use the pellet vent wall fitting which gives the proper clearances from the pipe to the plywood, or better yet plywood sandwiched with insulation and then another sheet of plywood.

What do I put under a pellet stove?

To prevent fire, pellet stoves must be installed on a noncombustible surface, typically called a hearth pad. This is typically made of a masonry material, beneath which is a cement backer board. Hearth pads serve an important function, but they dont have to be bland.

Does pellet stove pipe get hot?

As Corie mentions, you are well within any safety spec that is why pellet pipe has clearances to combustibles. In theory, it could get up to a temp where it would burn you instantly on touch and still be safe. If it is hot, the good news is that it is transferring some heat into the room.