Used the glass setting tape from Classic Industries. Worked perfect, just lightly tapped the frame onto the glass. Held setting tape in place with small pieces of blue painters tape. When glass was set and bottom retainer on I cut around the perimeter with a new razor blade to remove the visible setting tape and glass was tight and well set. IF, you ever have to replace it will be a snap.
Removal of frame is easily accomplished with a little heat. This prevents bending the frame when removing. Heat never seem to effect the old glass in any way.
I saved my old glass for patterns if need be.
I was going to use RTV but was talked out of that idea by our favorite Stove Bolt guy mr. Denny G. Glad I listen to the old codger!,