Residential fire suppression, engineered, independently fire tested and installed nationwide.
Quenchfire designs and manufactures the Halo2 high-pressure water mist system in Britain. Since 2012 we have installed more than 5,000 systems, supporting developers, fire engineers, Building Control and housing providers from concept design to long-term maintenance.
PUMP UNIT · MODEL 2.0
- System
- High-pressure water mist, automatic nozzles
- Operating pressure
- 100 bar
- Pump flow · supply
- 11 L/min · 1 bar minimum input
- Fire test evidence
- Fire Protection Association, BS 8458:2015 Annex C (2022)
- Service
- Design · Supply · Install · Commission · Maintain
Fire tested by the FPA
Report 103857.001
[FURTHER ACCREDITATIONS]
Technical support shaped around your role in the project.
Whether you are specifying, approving, commissioning or living with a system, start where the information is most relevant to you.
- Early-stage design and budget costing
- Compact plant: 500 × 300 × 300 mm pump unit
- O&M and commissioning documentation
- FPA test report and standards position
- Nozzle spacing and design parameters
- Direct access to our technical team
- Resident-focused retrofit installation
- Planned maintenance contracts
- Records to support building safety duties
- Home survey and quotation
- Small, ceiling-recessed nozzles
- Annual servicing available
From BS 8458 to BS EN 14972-17: where residential water mist standards stand today.
The standards framework for residential water mist changed in 2025. Here is a plain statement of what is current, what has been withdrawn, and how Halo2's independent fire test evidence should be read.
The former UK code of practice for residential and domestic watermist systems. BSI withdrew it in 2025 on publication of EN 14972-17. It is no longer the current standard for residential water mist.
Fixed firefighting systems – Water mist systems – Part 17: Test protocol for residential occupancies for automatic nozzle systems. Part of the EN 14972 series, alongside Part 1 for design, installation, inspection and maintenance.
EN TESTING · EARLY 2027
In September 2022 the Fire Protection Association tested Halo2 to the BS 8458:2015 Annex C room fire tests. It met the clause 6.1 recommendations in all six scenarios. That evidence remains relevant, independent technical evidence for fire engineers; it is not a claim of compliance with EN 14972-17. Our EN 14972-17 test programme is in its final design stage, with completion expected in early 2027.
“It should not be inferred simply from the withdrawal of BS 8458:2015 that products manufactured to the standard or certification schemes developed to the standard can no longer be used or recognised following the publication of EN 14972-17:2025.”
| BS 8458 Annex C scenario | Max. ceiling temp. (limit 320 °C) | Max. at 1.6 m (limit 95 °C) | Clause 6.1 |
|---|---|---|---|
| A · Corner | 125.8 °C | 55.5 °C | Met |
| B · Between two nozzles | 201.2 °C | 38.8 °C | Met |
| C · Beneath a nozzle | 50.7 °C | 47.8 °C | Met |
| D · Ventilation | 126.5 °C | 37.1 °C | Met |
| E1 · Open room 1 | 299.9 °C | 26.8 °C | Met |
| E2 · Open room 2 | 138.5 °C | 20.3 °C | Met |
Summary only. Tested in an 8 × 4 m compartment; the report places the BS 8458 application limit at rooms up to 80 m² with ceilings up to 3.5 m. The full 50-page report, including test observations and scope, is supplied in full on request.
- 2012 Quenchfire founded Residential water mist design, manufacture and installation.
- 2015 BS 8458 published UK code of practice for residential and domestic watermist.
- SEPT 2022 Halo2 tested by the FPA Six BS 8458 Annex C room fire scenarios, clause 6.1 met.
- 2025 EN 14972-17 published BS 8458:2015 withdrawn by BSI.
- EARLY 2027 Halo2 EN 14972-17 testing Programme in final design; updates published here.
Fine water mist at 100 bar. Less water, targeted protection.
High-pressure water mist breaks water into very fine droplets that absorb heat rapidly and displace oxygen at the fire, controlling it with far less water than a conventional sprinkler. Halo2 brings that technology to homes and residential buildings with a compact pump unit and discreet automatic nozzles.
- Model
- Halo2 2.0
- Operating pressure
- 100 bar
- Water flow rate
- 11 L/min
- Water input pressure
- 1 bar minimum
- Power supply
- 2.5 kW · 10.5 A · C16 MCB
- Output
- 230 V or volt-free NO/NC
- Unit size · weight
- 500 × 300 × 300 mm · 25 kg
- Min. installation space
- 650 × 300 × 450 mm
One specialist, from first drawing to annual service.
As manufacturer and installer, we are accountable for how Halo2 is designed, installed and maintained on every project, wherever it is in the UK.
- 01 SURVEY Site or drawing review, risk and water supply assessment.
- 02 DESIGN System layout and coordination with the fire strategy.
- 03 INSTALL Installed by trained Quenchfire engineers, to programme.
- 04 COMMISSION Testing, certification and handover documentation.
- 05 MAINTAIN Planned servicing and records for the life of the system.
Documents for specifiers and approvers.
Some documents are issued on request so we can make sure you receive the version relevant to your project. Test reports are always supplied in full.
- Standards position statement BS 8458 to BS EN 14972-17: scope of Halo2 evidence and EN programme PDF
- FPA fire test report 103857.001 BS 8458:2015 Annex C room fire tests · 50 pages · September 2022 ON REQUEST
- Halo2 product datasheet Pump unit, nozzles, performance data and installation space PDF
- Design guide and typical details Nozzle spacing, plant space and pipe routing PDF
- Inspection and maintenance guide For housing providers, facilities teams and homeowners PDF
- CPD: Water mist in residential buildings Book a session for your practice or team BOOK
Start a technical conversation.
Tell us about your project and your role, and the right specialist will respond. Homeowners are welcome too: we will arrange a survey.
- Telephone
- 01580 330082
- [email protected]
- Head office
- Unit 26 & 27 Vinehall Business Centre, Vinehall Road, Robertsbridge, East Sussex TN32 5JW