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Jargon Buster

Letter N

Natural Gas

Natural gas consists primarily of methane and is formed naturally over time. The most common use for natural gas is domestic fuel applications where it is piped directly into the users household.

Natural Wood Veneer

Some companies supply their door with a 'wood effect' veneer made from plastic. All of our natural wood veneers are made from real wood for a higher quality finish.

NHBC Type Approval

NHBC (National House-Building Council) Type Approval can be issued to whole buildings or any repetitive element of a building. Once type approval is given, the item that is approved will always be accepted by NHBC throughout England and Wales.

Non Latching

A non latching input is where if the trigger is removed, the sounders will stop and the panel will not need resetting.


When in non-maintained operation the lamp of an emergency luminaire will only light in the event of a mains failure and will stay lit for the minimum emergency duration required.