HETAS approved.
It is compulsory to have ventilation if your appliance is over 5kw. (Ref Table 1 of Building Regs Document J 2010.)
Combustion air vent for heat producing appliances.
External cowl reduces light and draughts.
Verifiable equivalent area calculation by Advantica.
HETAS approved for use with solid fuel appliances.
Core drilled - suitable for retrofit installations.
Cowl/Grilles U.V. stabilised to protect against fading.