Thor Duct ® Kitchen Extract Ductwork

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Kitchen extract poses a specific risk due to the presence of combustible contaminants, namely grease, inside the ductwork. When a kitchen extract passes through multi-compartments, there is a risk from a fire in a compartment outside the kitchen. This can cause the grease inside the duct to ignite, and the fire to spread throughout the building.

Compliance with EN 1366-1

Includes testing ducts under “Type A” fire, with measuring devices thermocouples inside the ductwork and inside the furnace, under full 1100°C temperatures.

The insulated ductwork is examined to see how many minutes it can maintain the duct temperature below 180°C on any one thermocouple, or below 140°C as a mean average of all thermocouples.

Insulation

Thor Duct ® Kitchen Extract is insulated using a calcium magnesium silicate blanket which maintains the duct temperature below 180°C and prevents grease igniting and causing fire to spread throughout the building.

Thor Duct ® is installed with two wraps of insulation, each wrap with a depth of 38mm.

Thor Duct ® Cleaning Doors EN 1366-1

Thor Duct ® Cleaning Doors have been tested to EN 1366-1 and are suitable for kitchen extracts. Cleaning doors are required every 2 linear meters. We strongly recommend a routine cleaning regime by specialist contractors.

Compliance with EN Code

Thor Duct ® Kitchen Extract is comprehensively tested to satisfy all code requirements.

Fully Tested

Thor Duct ® Kitchen Extract is tested in a flexible wall with:

Installation

All Thor Duct ® Kitchen Extract systems are installed by third party certified installers and are suitable for installation in:

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All Thor Duct ® products are fully tested and compliant across all international codes.

Additional Information

Manufacturing Standards

Thor Duct ® is manufactured from Galvanised Steel, and uses flanges and stiffeners, without paints or coatings.
Thor Duct ® is insulated using a calcium magnesium silicate blanket.

Both the product and the insulation have been tested as a system in accordance with test standards which includes access doors, silencers and bracketry.

All tests were conducted in EOTA approved laboratories, and each licenced manufacturing location has a factory production control (FPC) in placed to ensure exacting standards of manufacture.

Installation Standards

You can be 100% sure that your installation has been properly managed and is fit for purpose when called upon in the event of a fire.

Penetration seal detail is provided for floors and walls. Thor Duct ® is suitable for installation in flexible walls (Plasterboard) and aerated concrete floors, having been tested in both.
All installers are trained by Thor Duct ® to understand the risks and to follow the correct installation methods to ensure installation is as tested.
Our installers in Ireland and the UK comply with local guidance and are all members of third party certification schemes.
In mainland Europe, installers comply with certification schemes where available.

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