Colt Cowls Holetherm Twin Wall Flue System with Ventilated Fire-Stop Arrangement

anc007
HETAS Approved

Factory Made Metal Chimneys

Burns:

HETAS No
CC004
Manufacturer:
Colt Cowls
Certificate No:
C-C004-2019
Manufacturers Remarks:
Ventilated firestops for use with this system have been verified fire resistant in accordance with BS 476:Part 20:1987
Flue Sizes:
125, 150, 175, 200*, 250, 300, 350 and 400 mm round
Designated:
EN 1856-1 T450 N1 D Vm L50040 G75
Firestop:
BS 476-20 1987; RefWarringtonfire Report No 194465
Tested:
BS EN 1856-1:2009. BSRIA Report Number 53550/1
CE Mark Certificate:
Kiwa Cert No 0063 CPD-6883
Testing Remarks:
200mm tested by BSRIA. Other sizes have been declared by the manufacturer to be produced to same specification
Appliance Operations: