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Residential & Domestic Fire Sprinklers - RAD Fire Spinklers Ltd.

Comparing Mist Systems & Sprinklers

Domestic & Residential Mist Systems

What is the difference between a Water Mist and Sprinkler System?

Domestic Sprinkler System Diagram

 Fig A typical combined domestic and                                    sprinkler system

For many years, RAD Fire Sprinklers have installed sprinkler systems in residential and domestic properties. These systems aid in the mitigation of Building Regulations AD Part B compliance issues in a variety of situations. Conventional sprinkler systems require a considerable volume of water to extinguish a fire, and this must be a 50mm combined supply inside the Thames Water area (refer to Fig A) This size of feed is necessary to deliver 100-120 litres of water at 2.5 bar to a typical 3-4 bedroom house. This form of supply is costly to establish, and the only alternative would be to store a significant amount of water somewhere.


The introduction of high-pressure mist systems has alleviated the problem by utilising far less water to tackle a fire.

High-pressure Mist System Installation

Domestic High Pressure Mist System Diagram - Rad Fire

                 Fig B. typical RAD-mist installation within                                        a small dwelling

This fundamental distinction has proven to be very useful in some situations where it has not been possible to replace the existing mains water supply (for a retro-fit project) or where it would be too expensive to provide an upgraded water supply for a small new build project and there has not been enough space to accommodate a large quantity of stored water.

The RAD-mist system shown in fig B is connected directly to the incoming mains water supply, which can be as little as 25 mm for modest houses. The unit requires its dedicated power source, and a flow switch within the unit activates the smoke alarm in the event of an activation.

For many years, our team of engineers at RAD Fire Sprinklers has been designing and installing sprinkler systems for customers in London and the South East, and we are very pleased to have introduced high-pressure mist to our product line. Over the years, we have worked on a wide range of assets, from high-rise apartment buildings to single-family homes. A mist fire sprinkler system may extinguish a fire with a small amount of water, thereby protecting both the property and the people within it.

When it comes to mist sprinkler system installation, we make sure to deliver a professional and effective service. We collaborate closely with our clients to guarantee that their needs and expectations are met. To ensure a professional service, all installation work is performed by highly qualified and experienced engineers. In our previous blog, we discussed how mist sprinkler systems are used. Please contact us if you are interested in a high-pressure mist fire suppression system or would like to schedule an installation.

Why Choose Us For Mist Sprinkler Systems?

We install both conventional and mist sprinkler systems for clients throughout London and the South East of England, giving us the knowledge to advise them on the best system for their specific projects. We have been installing mist systems for many years and are well-known for the service we give. Some of the reasons we believe you should choose us for mist systems are as follows:

  • Years of industry experience
  • We are well-known for the service we provide
  • Number sprinkler system types to choose from
  • Impartial advice because we install all types of system
  • On hand to provide expert advice and guidance

Find out more about what a Fire Mist System is on our blog page here. Or follow our Facebook page for updates. 

Contact RAD Fire Sprinklers For Mist Systems

When it comes to mist sprinkler systems, RAD Fire Sprinklers is the company to call. We’ve been installing fire suppression systems throughout London and the Southeast of England for many years. A water mist sprinkler system will aid in the protection of your property and the people who live on it. Our skilled team of engineers can advise and guide you to ensure that the right sort of system is installed in your home. If you’re considering installing a mist fire sprinkler system in your London home, make sure to contact RAD Fire Sprinklers.

Frequently Asked Questions About Fire Mist Systems

What is the difference between low pressure and high-pressure mist systems?

Although low-pressure mist systems have been utilized for some time in residential applications, a more recent development in the industry has been high-pressure water mist systems connected directly to a standard mains water supply. These innovative systems operate at around 8-12 times the pressure of a low-pressure mist system and they use less water. Although a low-pressure mist system could never be connected to a town main due to the pressure requirement, a high-pressure RAD-mist system is designed to directly pump water from a standard domestic water connection without exceeding the maximum quantity of water permitted by Water Regulations.

How can a Mist Sprinkler System extinguish a fire by using less water than a Fire Sprinkler System?

It has been known for a long time that water droplets evaporate when applied to a fire and the resulting steam reduces the concentration of oxygen close to the fire which in turn interrupts the chain reaction necessary for a fire to establish itself. This is the process for any sprinkler system.

However, a mist sprinkler system will improve on this basic process by producing a finer spray (or mist) than a standard fire sprinkler nozzle. A fine mist is a very effective way of ensuring that water evaporates quicker thus slowing down the combustion process even more effectively than a conventional fire sprinkler system. In order to achieve a finer spray, mist systems operate at a higher pressure than standard conventional sprinkler systems and in most situations can be as effective if not more effective than a conventional residential fire sprinkler system despite the reduced quantity of water used.

When was the first British Standard for a Mist Sprinkler System published?

The publication of BS8458 in 2015 which is the residential British Standard for a mist fire sprinkler system produced by the British Research Establishment (BRE) was welcomed by the residential fire sprinkler industry because it produced specific test criteria against which water mist suppression systems and components can be measured. The reason for this delay is partly due to the fact that a fire sprinkler mist system has traditionally been very 'project specific' which has made it difficult to produce a broad set of guidelines for their use.

What type of Fire Suppression System has been installed the longest in residential properties?

Conventional fire sprinkler systems have been in use for over 100 years whereas high-pressure water mist sprinkler system for residential use was only developed within the last decade. Unlike conventional fire sprinkler systems, they do not have the same proof of performance or legacy of 100 years of test data in an extensive range of fire hazards to refer to.

A number of residential water mist sprinkler systems have been installed throughout the UK however, it is fair to say that far more conventional fire sprinkler systems have been installed in the same period using components that have been subjected to extremely rigorous testing procedures over many years in a multitude of different design scenarios.

Are high-pressure mist sprinkler systems used in industrial situations?

Water mist fire suppression systems were originally developed as an alternative to Halon based fire suppression systems for storage areas and machinery enclosures in ships and various commercial applications.
Such systems performed very well in specific situations where there were no design variables like opening windows or varying fire loadings and where doors would generally be kept closed etc. These systems have subsequently been utilized in land-based commercial situations like engine rooms, local asset management of electronic equipment, commercial kitchens, turbine systems, etc.

How does a misting system work?

Fire mist protection systems have been around for a number of years. The system works by pressurizing water and forcing small amounts of water through a very small orifice; which is usually the size of a human hair. The smaller the water particle, the faster it vaporizes. Once sprayed the atomized water hits the hot air and the evaporation process will leave a cool mist in the air.

Are mist sprinkler systems easy to install?

High pressure mist systems are easier to install because the pipework is smaller and also flexible making these systems very suitable to being installed retrospectively.

How long will it take to install a mist system?

The length of time it takes to install a mist system will depend on a number of factors such as the type of building, the number of installation staff and how extensive the mist system is. When you choose RAD Fire Sprinklers, we’ll give you an estimated time for completion.

Call 01892 680090 and talk to an engineer for more information
Mist system was a great solution for our renovation needs and them team at RAD have been great. Always communicated clearly and been on hand to discuss over the phone as needed. Would highly recommend!
09:32 17 Jul 22
I have used RAD for a couple of projects and found them to be good to deal with. They did a pair of 3 storey open plan houses and seven three and four story town houses. The sprinklers were to improve fire safety, allow more flexible space and comply with building regulations. The sprinklers were far more cost effective than the mist type systems and look very discrete when installed.
Paul Jeary
15:50 11 Jul 22
It has been a pleasure to deal with RAD for installation of fire sprinklers at our site is Sevenoaks. They were fast, professional, working to time and quote, which made it easy to work with them.
Katrina Horobin
12:03 29 Jun 22
My requirement was a bit unusual for RAD in that I wanted a mist system in one room of a rented house. I had no drawings or technical back up. RAD were very helpful and repositioned the unit after the initial installation. Luckily with the help of Sonny, the engineer it all worked out very well.
Simon Gurney
16:16 12 May 22
I have used RAD for the last 10 years for all of my housing developments in need of a sprinkler system. Easy process from start to finish and no issues or problems throughout. Always someone at hand to answer a querie and we have a great working relationship with the team at RAD. Would highly recommend.
15:33 12 May 22
Diligent & a very professional team. A joy to deal with. Will certainly be calling on them to help with many more future schemes.
Jason Tema
22:17 08 Jul 19
Great team, fitting sprinklers, saving lives & property... What more could you wish for!!!
Colin P
17:53 01 Jul 17
Excellent company & great service... This company rocks! They sprinkle fires & save lives!!!
Music N Videoz
07:15 16 Dec 16
As somebody who feels that it should be a necessity for all properties to have fire sprinkler systems, I am a big fan of this company. I have used them numerous times to service my home system and they are very knowledgeable. I would highly recommend their service.
Kate Fraser
09:25 30 Mar 15
One look at Rad Fire Sprinkler's website will tell you that these guys know exactly what they are talking about when it comes to Fire Sprinklers and the legislation surrounding fire safety. A very trustworthy company.
Adam Hudson
16:45 15 Nov 13

Our Services Cover London and the South East

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RAD Fire Sprinklers Ltd.
58A St John’s Road
Tunbridge Wells, TN4 9NY

Mon – Fri: 8AM – 5PM

Tel: 01892 680 090

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