I am building a natural gas outdoor fireplace. I will be using a Comfort Glow 30" vented gas log set (model #: LVDR30). I'm not using an insert, so I have a few questions about proper fireplace dimensions.
1. I have planned for a 36" wide opening, so how do I calculate the rear width, depth, and height of the firebox?
2. How do I calculate the flue size?
3. How do I calculate chimney height?
4. Does one design the firebox, throat, and chimney for gas fireplaces using the same methods as wood burning fireplaces?