I amnot to sure but I am pretty sure yes!!
Ash, and possibly charcoal
Yes it can
Yes
Cleaner and hotter burn
Yes, it is safe to burn sassafras and it is commonly burned in many locales.
charcoal
Ash, and possibly charcoal
No they do not. to make charcoal you burn wood
Charcoal burn smokeless so
no
Yes it can
Check with Martin for an owner's manual. Unless a fireplace is specifically rated as multi-fuel, a gas fireplace cannot safely burn wood.
No, it is not safe to burn. It is toxic.
yes you can burn cactuse
You really should not burn ANY solid fuel in a gas fireplace.
I do.
Yes