Plumis Automist® Fire Suppression Systems

An Easy to retrofit Fire Sprinklers alternative.  With 90% less water than a traditional sprinkler system and a BS8458 fire performance with no tank or mains upgrade.

All the Spray heads have massive benefits and here is just a few:

  • Offers peace of mind
  • Enhance architectural design and increase worth with open plan space
  • Addresses specific fire risk spaces
  • Helps to prevent arson

All the Spray heads are activated by a ceiling mounted heat detector.  Heat detection is recommended for most applications (Approved Document B) as it effectively eliminates nuisance activation’s.

Automist® Fixed System:

Automist® is an innovative, fire protection water mist solution designed to allow open plan layouts to comply with regulations, it can create a safe escape route in an existing open plan house with no impact on rent-able space.

Automist Technology is proven to be fast acting and effective as a Fire suppression system by keeping temperatures low delaying flashovers.

Testing has shown that Automist® can extinguish small fires and greatly impedes the development of very serious fires. Most importantly, it gives occupants the incentive to escape the room of origin instead of attempting to fight the fire. Meanwhile, Automist® suppresses the fire, avoiding a flash-over and buying valuable time for the fire fighters to extinguish the fire with minimised effort and risk. Automist® uses a high-pressure pump to generate a fine water mist from nozzles mounted on a wall at light switch height.

A standard volume filling Automist installation is a discreet wall mounted spray head. It can be installed seamlessly and unobtrusively for single room fire protection of residential premises.


  • Water flow – 5.6 litres per minute
  • Trigger – conventional 57°C heat detector and/or optional manual call point
  • Protected Area – 32 m2 area protection per pump with fire hazards up to 5m away from each spray head
  • Run time – 30 mins default or configurable with a fire panel
  • Installation requirements – Reliable water supply (6 lpm flow and 1 -10 bar pressure) connected with a standard BSP ¾” fitting. 230V 50Hz electrical supply on an independent circuit.

Automist® Fixed Wall Head is an LABC Registered Solution (EW171) for loft conversions.  It is an innovative, fire protection solution designed to allow open plan layouts to comply with regulations.

Automist won the James Dyson Award in 2009 and was selected by the British Library as one of the top 15 inventions of the last decade in 2010.

Automist Fixed Spray Head
Automist Fixed Spray Head

Plumis Automist® Hydra SmartScan

1st in Fire Suppression

  Automist® Hydra SmartScan is a smarter, modern fire sprinkler system. Instead of the typical ceiling-mounted sprinkler head, this device consists only of a stainless steel panel that seamlessly integrates into the interior of any living space. Automist® Hydra SmartScan Wall Head is an LABC Registered Solution (EWs534B) it is suitable to be used in any application where a BS8485:2015 compliant water mist system is deemed to be acceptable as a code-complaint automatic water fire suppression system. It is an innovative, fire protection solution designed to allow open plan layouts to comply with regulations, for example in accordance with the recommendations of BS 9991:2015. UKAS Accredited Certification Body, BSI have also issued a certificate of verification to BS 8458:2015 performance requirements. Its use is of course supported in Approved Document B and BS 9991:2015, the new code of practice for fire safety in residential buildings. In acknowledgement that Smartscan Hydra falls outside of the prescriptive scope of traditional product standards, Plumis took the unusual step of pushing them to the limit in further third-party testing. In short, the Automist products are a safe bet for their intended use.
For Testing results of the Award winning Hydra system please see below

BS9252:2011 Annex SBS8458 Testing AutomistBSIDeclaration of Testing - Automist Plumis

Welcome to the 21st Century Sprinkler.

When triggered by a Plumis multi-sensor wireless detector or a wired detector, all the linked spray heads will begin scanning. They start measuring the temperatures within the room using an infrared (IR thermopile) sensor. The scan is looking for an exceptionally high temperature reading, or a differential increase between scans. Once the temperature exceeds a threshold that head is deemed to have successfully located a fire. All heads which locate a fire during a scan are then compared to see which has the best view. The selected spray head will lock onto the selected location, and activate the high-pressure pump, driving mains water through the unique nozzle unit, quickly directing a dense fog into the location of the fire. The high momentum vertical spray orientation with a horizontal trajectory is designed so even shielded fires are saturated with a turbulent flow of mist, suppressing the fire. All the other heads lock closed. In this way, it is like a traditional sprinkler system designed to supply water to only one head so all the water is supplied over the fire. However, one huge advantage it boasts is that this approach uses 90% less water. The result is significantly less water damage to the living space.

From the point of view of the approving authorities

The Automist technology is proven to be fast acting and effective, either extinguishing or delaying the growth of the fire long enough to escape  and the fire and rescue services to attend. It keeps temperatures low, too, delaying flash overs.                


Spray head - 60 mm deep wall box mounted 1400 - 1450 mm from the ground. A single head can protect an area within a 6m radius from its location.   Activation Method - Ceiling mounted multi criteria detector triggers scanning infrared pyrometer   Suppression - 5.6 litres per minute vertical watermist blade made of droplets less than 100 µm in size   Pump - 385 mm (height) by 216 mm (length) by 181 mm (width) and weighs 6.0 kg connected to a 3/4” water supply   Electrics - 10A 230V electrical supply with suitable type C circuit breaker or fuse         Plumis Automist® Fire Suppression Systems - Automist Set Up

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