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Fireproof Gas Flue Inspection Hatch

Product 148


Fire and smoke resistant access hatch for easily accessing services passing behind walls or ceilings

£0.00 ex. Vat


Gas Flue Inspection Hatch

Envirograf® fireproof gas flue inspection hatch for boiler rooms with a clip door. Easily opened with a 2p or 10p coin.

The gas flue hatch is fire insulated, with intumescent lining and smoke seals. Removable door, therefore allowing for complete viewing for inside the ducting. To return the cover to the shut position, place the door into the slot and push the cover to the shut position where the cover will then hold. Fit the hatch to walls and ceilings, either

  • Provides 1-2 hours fire protection
  • Can be fitted horizontally or vertically, in walls or ceilings

The old model click-lock hatch is still available – please specify when placing order.

Specially designed passive fire range to meet Document B of Building Regulations, and also tested to European Standards. For more information, browse our full range of ventilation products online.

Envirograf ® passive fire products carry the hallmark of excellence, reflecting the high standards that prevail in its laboratory, test rig, and manufacturing plant. Envirograf® passive fire products are subject to rigorous quality control which, at all stages, ensures products remain at the leading edge of fire containment technology. This quality has earned the company and its passive fire products a high reputation. With its operating system accredited to ISO9001.


– Provides 1-2 hours fire protection

– Insulated version is fitted with fire and sound resistant sponge, providing acoustic protection

– Intumescent lining will seal the aperture in a fire, whether in the open or closed position

– Internal, spring-loaded locking mechanism means the hatch will remain closed even when installed in ceilings

Application Instructions

Use the cut-out size for a specific hatch to prepare the opening in the wall or ceiling. The hatch surround is simply screwed into place using the pre-drilled holes (2 holes on all 4 sides). All fixings are internal.

Press the door to release the latch. The door can be taken out to give complete viewing inside the ducting. The hatch can be fitted horizontally or vertically; suitable for walls or ceilings. Can be made to any size.

Order References / Sizes

Non-insulated version

Ref                                    Internal size (W x H)

ISL/GFH/100×100          100mm x 100mm

ISL/GFH/200×125          200mm x 125mm

ISL/GFH/200×200          200mm x 200mm

ISL/GFH/300×300          300mm x 300mm

ISL/GFH/400×400          400mm x 400mm

Acoustic insulated version

Ref                                     Internal size (W x H)

ISL/IGFH/100×100         100mm x 100mm

ISL/IGFH/200×125         200mm x 125mm

ISL/IGFH/200×200         200mm x 200mm

ISL/IGFH/300×300         300mm x 300mm

ISL/IGFH/400×400         400mm x 400mm