not recommended due to excessive creosote buildup
Edit - Water, not wood type, has the greatest impact on creosote production. If the Gum is properly seasoned (dried to approximately 20% moisture) it will not produce more creosote than any other seasoned wood. And Gum has more energy per volume than some Maples and Ashes.
On the other hand, burning any green or wet wood significantly risks excessive creosote buildup, regardless of the wood type.
no
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.
quite good to burn indeed!
yes
Yes.
yes
yes