Legends of Texas Barbecue- The book.
Reading "Legends of Texas Barbecue". Enjoying the pics and historical accounts.
The author Rob Walsh, on page 38, refers to gas fired BBQ ovens and says "Unfortunately, no gas-fired oven has been invented that can faithfully replicate the flavor of an old fashioned barbecue pit-yet". He refers to ones that use a some wood for smoke.
I've heard here differ.