Is the glass at an angle? Why?

We do not use regular glass in our fireplace. It’s holographic glass meant to be projected on. It has special properties that reflect light when projected on from a certain angle and is completely transparent when viewed perpendicular.

Due to the way our proprietary holographic projection technology works the glass needs to be at a 45-degree angle. However, the flames do appear to burn the logs and the effect is very realistic.