Joist Support - BLACK

Joist Support - BLACK

Regular price £25.00 Sale

Joist Support- Black
Description: The joist support is used as a support on the top side of combustible floors where the chimney passes through. Use in conjunction with a Fire Stop on the underside of the floor. Application- For use on solid fuel and gas/oil appliances. eg: wood stoves, gas coal effect fires, oil boiler and any solid fuel appliances. Outer skin is made from 304 grade stainless steel and is 0.4mm thick. This is then powder coated in a high temperature Black finish. The Inner skin is made from 316 grade stainless steel and is 0.4mm thick. Insulation is compressed rockwool giving a density of 128kgper cubic metre.
  • All parts are fully welded.
  • Distance to combustibles is 50mm.


  • TWPro is HETAS Approved and is CE marked.
  • Designation Number is EN1856-1 T600 N1 D V2 L50040 G50.


  • TWPro Twin Wall Insulated Chimney parts are secured together by using a Locking Band (supplied).
  • Make sure that you keep a distance of 60mm from the outside of the flue to any combustible material (wood, plaster board).


  • Standard Stove Delivery: 3 - 5 Days £35
  • Next Day Stove Delivery (order before 10am): £65

(Please Note: Only stoves in stock available for next day delivery. Although 99.5% of the time deliveries arrive on time there can be occasions out of our control where there may be delays: All tracking information will be given once order is complete. )