Clearance to Combustible Materials
2" clearance except in areas protected by factory-built supports certified for reduced clearance. EXCEL round and square supports permit the chimney to be installed with approximately 1 inch of clearance - in the area shielded by the support.

Construction
Flue: .016" stainless steel
Casing: .016" stainless steel
Seam: Interior and exterior seams are continuous seam welded
Insulation: Thermoplus continuous blanket
Wall thickness: 1"
Paint: All black EXCEL components are painted with Forrest “Stove Bright” flat black paint

The wall radiation shield (also known as the wall thimble) is used when the chimney passes horizontally through a combustible wall. The EWRS telescopes to adjust for wall thickness from 6" – 12", so no painting is required. The inside finish trim is separate from the EWRS, allowing for easy installation before or after the wall finish is applied. The Insulated Wall Radiation Shield - aka Thimble (EWRSI) is designed for installations in energy efficient houses which have tightly sealed vapour barriers. The EWRSI is fully insulated and has a flange to permit an air tight seal to the vapour barrier. It can be installed into an existing home but since it must be installed under the drywall it is most often used for new construction. Flue extention and trim ring included.

The Stainless Trim (EST) for the EWRS is a decorative trim cover for the exterior wall plate of the Wall Radiation Shield (Wall Thimble) that prevents water infiltration while providing adequate heat ventilation.  It covers the existing galvalume exterior plate of the EWRS for a more decorative look.

8" Diameter is Special Order. No returns on special order items