Edwin The OP asked for advice on the safety of propane grills used on a deck. All I tried to do was inform him and others that there are safer alternatives to using an ordinary portable propane grill on his deck. There are gas fired grills that are suitable for use at or in a dwelling. The main feature that those units have that the more common portable units do not have is that they have been designed to limit the fuel available to any fire that may occur in the course of using them. The laboratory listed fixed in place units are supplied by a remote supply of fuel that incorporates a remote shut off. The laboratory listed movable ones are designed to be for more difficult to tip over then the common outdoor variety and they will only except a smaller gas cylinder to limit the amount of fuel gas exposed to a cooking fire.
I'm at a loss as to why you object to my offering information on a safer choice to the OP and to other readers. What harm does my providing the information do and why does it bug you so much.
-- Tom Horne
Well we aren't no thin blue heroes and yet we aren't no blackguards to. We're just working men and woman most remarkable like you.