Product Type: Commercial
Commercial gas vent system for use over naturally aspirated gas fired appliancesfitted with a draught diverter, including cooking equipment, central heating boilers, modular boilers, small furnaces, water heaters and unit air heater.
QC is a twin wall pre-fabricated commercial gas vent designed for use on gas fired naturally aspirated appliances which incorporate a draught hood and where the flue gas temperature will not exceed 250°C, where the chimney is designed to operate under negative pressure and dry conditions.
The product is available in ten diameters ranging from 178mm to 600mm internal diameter. QC is manufactured from an aluminium liner and zalutite outer case, separated by a 25mm air gap. Utilising a multi-barbed twist lock jointing system, the QC product offers a strong joint and fast installation. This product is not suitable for condensing and positive pressure applications.
- Diameters:
- 178mm - 600mm
- Construction:
- Twin wall
- Material:
- Aluminium liner with a Zalutite outer case
- Temperature:
- 250°C continuous
- Pressure capability:
- 40Pa (N1)
- Mode of operation:
- Negative / zero pressure only
- Approvals:
BS EN 1856-1 T250 N1 D Vm L11030 O(50)
1.5 hour fire rating to BS 476: Part 20
- Certifcation:
- CE
- Requirements:
- Firestop plates are required where the QC product passes through a combustible floor. For external applications where the chimney run exceeds 3.0 metres, SFL would recommend that either Nova SM or SMW is used to minimise condensation and freezing of the flue gases.
- Commercial atmospheric fire gas appliances with flue gas temperatures not exceeding 250°C.
- Atmospheric unit heaters/cabinet heaters
- Not suitable for positive pressure and condensing applications/appliances
