Lopi FL, LX, X Owner's manual

Hello! I'm a chat assistant that has read the Lopi fireplace inserts user manual. This document covers installation guidance for models X, FL and LX, daily use instructions, safety precautions, maintenance tips and warranty information. The manual also includes details about using draft controls, preventing creosote buildup, and optional blower installation. I'm ready to answer your questions about your device based on this manual.
Can I install the fireplace insert in a metal or zero clearance fireplace?

What should I do before installing the insert?

How do I install the glass?

What type of wood should I use?

How do I prevent creosote buildup?