NF Clay/ceramic chimney productsPrinter-friendly version

NF Clay/ceramic chimney productsPrinter-friendly version

Products covered: Solid-wall or cell-wall flue blocks, vitrified flue blocks, insulated flue blocks.
The NF Mark certifies the performances and safety level of the products in accordance with the applicable European standards.

Permitted ranges for the mark

Insulated flue blocks

Trade name Range No. of models Certificate Validity start
date
BOUYER LEROUX - ISOTHERME
- KALISOL
1 NF052-9-01 14/02/2018
TERREAL - Boisseaux à parois alvéolées simples
- TERR'ISOL
2 5-30 01/10/2016

Cell-wall flue blocks

Trade name Range No. of models Certificate Validity start
date
BOUYER LEROUX - Boisseaux à parois alvéolées
1 NF052-9-01 14/02/2018
TERREAL - Boisseaux à parois alvéolées simples
- TERR'ISOL
2 5-30 01/10/2016
  • 2 Marks
  • 5 Ranges
  • 4 Models