A factory-built wood fireplace gives you a real wood fire without building a full masonry fireplace and chimney. They typically require less construction, can be installed faster, and usually cost less, which makes them a common choice for new builds, additions, and remodels.
Many factory-built wood fireplaces are commonly called zero-clearance fireplaces because they are listed to be framed much closer to combustible construction than a traditional masonry fireplace. The exact framing, clearances, chimney system, and finishing requirements come from the specific fireplace's installation manual.
A few things to plan for early: where the chimney will run and how tall it needs to be, the hearth extension in front, and whether the fireplace will pull in outside air. Local code and permits come into it too. We'll help you sort through that before the framing goes up, which is a lot easier than fixing it after.