It's a good practice to minimize situations where nails for hardwood flooring are driven through heat transfer plates, saysPMHydronics EditorJohn Siegenthaler. By installing 6" wide, single-tube plates on 8" spacing, you create a 2" gap between plates, as shown in this picture fromHarvey Youker. This allows two nails to be located every 8" along the edge of hardwood flooring without shooting nails through the plates.
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