Bottom Shields are approved for all burner sizes. The below clearance (dimension C in Clearance Tables) may be reduced by 25% when an approved Bottom Shield is used.
Reduced clearances downstream from the burner are approved for all configurations. Dimensions B, C, and D in the Clearance Tables can be reduced for locations 25’ (7.6 m) or more downstream from a burner, the maximum reduction is 50%.
Please note: The stated minimum clearance to combustibles represents a surface temperature of 90°F (50°C) above room temperature. Building materials with low heat tolerance (i.e. plastics, vinyl siding, canvas, tri-ply, etc.) may be subject to degradation at lower temperatures.
Where to find more information?
Follow the clearance to combustible pages in the product manuals