screws .... sheet metal or nutted possibly .... just make sure the back of the wood AND the metal it's on top of is well sealed

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics