The main types of fire suppression systems include clean agent, CO₂, dry chemical, wet chemical, water-based, tube-based and specialized systems. The right choice depends on the fire hazard, occupancy, equipment being protected, sensitivity to water or residue, and applicable safety requirements. A server room, generator room, CNC machine and commercial kitchen may therefore require completely different suppression solutions.
Before comparing agents or brands, ask: will this space be occupied when the system might need to activate, and is the equipment inside sensitive to residue or moisture? That single question eliminates most of the wrong options immediately. A generator room nobody stands in has completely different requirements than a server room your team works in daily, or a commercial kitchen with staff present during service hours.
CO₂ systems can be suitable for certain normally unoccupied enclosed hazards such as generator and machinery spaces, where the system can be engineered with appropriate detection, alarms, discharge controls and evacuation provisions.
These three agents solve the same core problem — protecting occupied, electronics-sensitive spaces — with different trade-offs. FM200 discharges fastest and is the most established option. Novec 1230 has a lower environmental footprint and longer atmospheric lifetime advantage. Inert gas (argon/nitrogen) works by gradually lowering oxygen concentration and is considered safe for brief occupied exposure during discharge, unlike CO2. None leave residue, which is why all three are standard for data centres, server rooms and control panels.
Instead of a cylinder-and-piping network, a heat-sensitive detection tube runs directly through the protected enclosure and bursts on contact with flame, discharging agent precisely where the fire is. No electrical power is needed, which makes this the most practical option for electrical panels, CNC machines, and laboratory fume hoods — a single, self-contained enclosure rather than a whole room.
Pre-pressurized dry chemical units deliver rapid knockdown specifically on hydrocarbon and process-area fires, with nitrogen back-up maintaining constant discharge pressure. They are commonly used in selected oil & gas, marine and process applications.
Cooking oil and fat fires behave differently from ordinary combustibles, which is why kitchen suppression uses a wet chemical agent specifically designed for Class K fires — most commonly built to UL 300 compliance for commercial hood and duct protection.
Engine bay fires in commercial vehicles need a system that survives vibration, heat cycling and confined installation space — a different engineering challenge from a fixed-room system, which is why vehicle suppression is typically treated as its own category rather than an adapted version of a building system.
| System Type | Occupancy Considerations | Leaves Residue? | Typical Setting |
|---|---|---|---|
| CO2 Flooding | No (evacuation required) | No | Generator rooms, engine compartments |
| FM200, and FK-5-1-12 | Yes | No | Server rooms, data centres, control panels |
| Tube-Based Systems | Depends on agent used | Depends on agent used | Single panels, CNC machines, fume hoods |
| Dry Chemical Skid | No | Yes | Refineries, marine, process areas |
| Kitchen (Wet Chemical) | Yes, post-discharge cleanup needed | Yes | Commercial kitchens |
| Vehicle Suppression | N/A — engine bay specific | Depends on agent used | Buses, trucks, heavy vehicles |
Consider a mid-sized manufacturing facility with three distinct fire risks under one roof: a server room running production software, several CNC machines on the floor, and a diesel generator in a separate enclosure. Three different systems — not one — would typically be the right answer: a clean agent system for the server room (people work there daily), tube-based suppression for each CNC machine (compact, self-contained, no external power needed), and CO2 flooding for the generator room (unoccupied, cost-effective). Treating this as a single "we need a fire suppression system" question, rather than three separate ones, is one of the most common planning mistakes we see.
Start by mapping each distinct space and hazard separately rather than treating your whole facility as one decision — a server room, a generator room and a commercial kitchen almost always need different system types. Call Supremex for a free site survey covering every area.
For most data centers, a clean agent fire suppression system is a strong choice because it protects sensitive electronics without water damage or residue. Agents such as FK-5-1-12 or inert gases can quickly suppress fires while keeping equipment operational. The final choice depends on room design, risks, and applicable safety standards.
Yes — this is standard practice, not an exception. Most facilities with varied fire risks end up with 2-3 different system types across different zones, each matched to that zone's specific hazard.
Total flooding protects an entire room by filling it with agent, requiring the space to be reasonably sealed; tube-based suppression protects a single compact enclosure (like one panel or machine) via a detection tube running directly inside it — a fundamentally different scale of protection.
Not necessarily — it depends entirely on occupancy. For an unoccupied generator room, CO2 is often the more cost-effective correct choice; clean agents earn their higher cost specifically in occupied, electronics-sensitive spaces where CO2 isn't safe to use.
The best system depends on the generator, fuel, room design and occupancy. CO₂, water-based and other specialized systems can be appropriate for different generator-room hazards. CO₂ may be considered for suitable normally unoccupied spaces, but its life-safety risks require strict controls. A site-specific hazard assessment should determine the final system.
A wet chemical suppression system is commonly used for commercial cooking hazards involving cooking oils and fats. Properly designed systems can protect cooking appliances, hoods and associated ductwork. The installation should follow applicable requirements, listings and manufacturer instructions.
Free site survey covering every risk area on your premises — we'll recommend the right system for each zone, not a one-size-fits-all answer.
Unoccupied enclosed spaces.
Occupied server rooms & data centres.
Single-panel tube-based protection.