What type of stairwell smoke ventilator can I use?

A stairwell smoke ventilator is an AOV which provides at least 1.0m2 of free area when open. It usually serves one of two purposes;

  • to evacuate any smoke that gets in the stairwell of small buildings,
  • or, more commonly, it provides replacement air for a lobby smoke extract system in large buildings.

The most common product types of stairwell ventilators are illustrated below.

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What our Approved Installers say about Easivent training

Easivent has now been running Approved Installer Training for over a year, with 7 training sessions completed and 15 companies becoming Easivent Approved Installers.

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Self-install AOV kits can benefit your bottom line

Take advantage of the AOV kit approach and gain many benefits for your smoke control project.

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Using a stairwell smoke ventilator (AOV) for summer ventilation

As well as smoke removal and fresh air replenishment, a stairwell smoke ventilator (AOV) can be used for summer ventilation.

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Using a stairwell smoke ventilator (AOV) for roof access

A stairwell smoke ventilator is an automatic opening ventilator (AOV) providing at least 1.0m2 of free area when open. It helps to evacuate any smoke that gets in the stairwell of small buildings, or more commonly it provides replacement air for a lobby smoke extract system in large buildings. 

However, there are other uses for a stairwell AOV:

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Fantasy Football League Update

Our Fantasy Football League is now in full swing. With 24 Gameweeks played, we’re just over halfway through. Everyone’s interest in football has peaked, discussing strategic moves and team formations, rushing to make last minute substitutions before the deadlines.

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What is a stairwell AOV system?

Stairwell automatic opening ventilators (AOV) are used in the stairwells of flats and office buildings where protecting the common escape routes is of paramount importance. 

A stairwell smoke ventilator is an AOV which provides at least 1.0m2 of free area when open. It usually serves one of two purposes;

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Mechanical Smoke Shafts: 7 steps to successful selection for apartment buildings

Mechanical smoke shafts are the most common method of smoke control in high rise apartments. Although they are in essence very simple systems comprised of relatively few components, they are not yet included in the Building Regulations and tend to be shrouded in mystery, and thought of as a specialist package.

However, selection and installation of mechanical smoke shaft systems are well within the realm of competence of most mechanical or electrical contractors. We explore the steps that should be taken for successful selection in apartment buildings.

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