Vermont Casting 1637, 1635, 1638, 1636 Clearance to Surrounding Combustible Materials, Wall Shields

Vermont Castings Seville

Clearance to Surrounding

Combustible Materials

When the stove is operating, both the stoveplate and the chimney connector radiate heat in all directions. A safe installation requires that adequate clearance be maintained between the stove and nearby combustible materials to ensure that those materials do not overheat.

Clearance is the distance between either your stove or chimney connector, and nearby walls, floors, the ceiling, and any other fixed combustible surface. Keep furnishings and other combustible materials away from the stove as well. In general, a distance of 48" (1220 mm) must be maintained between the stove and moveable combustible items such as drying clothes, furniture, newspapers, firewood, etc. Keep this area empty of any combustible material.

Safe Ways To Reduce Clearances

The Seville clearance requirements, listed and diagramed on Pages 12-13, have been established through testing to UL and ULC standards to meet most installation configurations. These involve four basic variables:

•When neither the chimney connector nor the wall has a heat shield installed.

•When only the chimney connector has a heat shield installed.

•When only the wall has a heat shield mounted on it.

•When a heat shield is installed on both the chimney connector and wall.

In general, the greatest clearance is required when the stove will be positioned with no heat shield near a wall with no heat shield. The least clearance is required when both the stove and the wall have heat shields. Reducing a stove clearance may require installation of a listed heat shield on the chimney connector as well.

Clearances may be reduced only by means approved by the regulatory authority, or in accordance with the clearances listed in this manual.

Wall Shields

Wall shields should be constructed of 24 gauge or heavier sheet metal, or another noncombustible material such as 1/2" (13mm) insulation board (Fig. 14) or common brick "laid on flat," with the 3¹⁄₂" (90mm) side down.

Shields must be spaced out from the combustible surface 1" (25mm) on noncombustible spacers. The spacers should not be directly behind the stove or chimney connector.

Air must be able to flow between the wall and the shield. At least 50% of the bottom 1" (25mm) of the shield should be open and the shield must be open at the top.

Air flow
Wall shield
Stud wall
framing
Noncombustible
spacers and	Shield
fasteners
	Metal Spacer
Drywall
Air flow
	ST248

Fig. 14 Approved Wall shield construction

The following examples of wall shield construction illustrate common designs used to safely achieve reduced clearances to combustible wall materials.

Parallel installation, vertical chimney connector, two wall shields. Fig. 15: Reduced clearances for both rear and side walls. Wall shields may meet at corner if desired. Shielding for connector is centered behind connector.

Parallel installation with rear wall pass-through, two wall shields. Fig. 16: Reduced clearances for both rear and side walls. Wall shields may meet at corner if desired. Shielding for connector is centered behind connector. Wall pass-through must comply with codes.

Corner installation, vertical chimney connector, two wall shields. Fig. 17: Reduced side clearances. Wall shields MUST meet at corner.

10 30001490