A firestop plate is used to allow the chimney to pass between floors, for example, when you need the chimney to go through the ceiling on the ground floor through to the first floor. The steel plate is designed to provide the appropriate distance between the flue and the adjacent flammable materials, according to both fire and building regulations. A plate must be used top and bottom of the floor penetration. A non-ventilated firestop plate can only be used on installations burning gas or oil (T200). For T600 solid fuel installations ventilated plates must be used. All KW fire stops are set at a 50mm to combustible distance.
For use on solid fuel and gas/oil appliances. eg: wood burninig stoves, multi fuel stoves gas coal effect fires, oil and gas boiler and any solid fuel appliances.
Outer skin is made from 304 grade stainless steel and is 0.4mm thick. Inner skin is made from 316 grade stainless steel and is 0.4mm thick. Insulation is compressed rockwool giving a density of 200kg/m3. All parts are fully welded. Distance to combustibles is 50mm.
KW is HETAS Approved and is CE marked.
EN1856-1 T600 N1 W V2 L50040 G50.
EN1856-1 T200 W V2 L50040 O20.
KW twin wall insulated chimney parts are secured together by using a locking band. Make sure that you keep a distance of 50mm from the outside of the flue to any combustible material (wood, plaster board).
KW is sold under separate brand names in the UK. Components may be branded as KW, KC or TW Pro.