Class C Fires

Class C Fire Extinguisher: What You Need to Know About Flammable Gas Fires

by Classes of Fire

Understanding Class C Fires and How to Protect Against Them

When it comes to fire safety, choosing the right extinguisher for the specific type of fire can make all the difference. One important—but sometimes overlooked—category is fires fuelled by flammable gases, known as Class C fires. These fires involve gases such as propane, methane, and butane, which can ignite quickly and pose serious risks.

In this article, we’ll explain what Class C fires are, why specialised extinguishers are necessary, and how to safely use them.

What Are Class C Fires?

Class C fires occur when flammable gases catch fire. These gases can spread flames rapidly, creating dangerous situations in various settings, including:

  • Industrial environments like chemical plants and gas storage facilities
  • Laboratories where gases are in use
  • Homes that rely on propane or natural gas appliances

Some common flammable gases involved in Class C fires include:

  • Propane (commonly used in grills and heaters)
  • Butane (found in lighters and portable stoves)
  • Methane (the main component of natural gas)
  • Hydrogen (used in manufacturing and fuel cells)
  • Acetylene (used in welding)

Recognising the presence of these gases and understanding their fire hazards is crucial for effective prevention and response.

Which Fire Extinguishers Are Suitable for Class C Fires?

Using the wrong extinguisher on a Class C fire can worsen the situation or even cause explosions. Water or foam-based extinguishers should be avoided entirely. Instead, the following types are recommended:

  • Dry Powder (ABC) Extinguishers: Versatile and widely available, these extinguishers use powders like monoammonium phosphate to tackle Class A (solids), B (liquids), C (gases), and electrical fires.
  • Monnex Dry Powder Extinguishers: Designed for high-risk industrial areas, Monnex extinguishers are highly effective on flammable liquids, gases, and electrical fires with a strong BCE rating.
  • Clean Agent Extinguishers: These extinguishers deploy gases such as Halon or FM-200 to suppress fires without leaving residues, making them ideal for sensitive environments like data centres while being effective on Class C fires.

How to Use a Class C Fire Extinguisher Safely

If you encounter a fire involving flammable gases, it’s important—if it can be done safely—to isolate the gas supply first. Without a fuel source, the fire becomes much easier to extinguish, following the principles of the fire triangle.

Once the gas is isolated, use the PASS method to operate the extinguisher:

  1. Pull the pin to unlock the extinguisher.
  2. Aim the nozzle at the base of the fire (not the flames).
  3. Squeeze the handle to release the extinguishing agent.
  4. Sweep the nozzle side to side until the fire is fully out.

If the fire is large, spreading quickly, or you feel unsafe, evacuate immediately and call emergency services. Never risk your safety.

Why It’s Important to Have a Class C Fire Extinguisher

Though less common than fires involving solids or liquids, Class C fires can escalate rapidly and cause significant damage. Having a suitable extinguisher nearby, along with the knowledge of how to use it, can prevent a small incident from turning into a disaster.

Final Tips for Class C Fire Preparedness

If your environment involves flammable gases, make sure you:

  • Know which gases are present.
  • Choose extinguishers specifically rated for Class C fires.
  • Regularly maintain and check your extinguishers.
  • Train staff or household members on how to respond effectively.

Fire safety is a shared responsibility—protect your people, property, and peace of mind.

Frequently Asked Questions About Class C Fire Extinguishers

Q1: What are Class C fire extinguishers used for?
They are designed to extinguish fires caused by flammable gases like propane, methane, butane, and hydrogen, stopping the chemical reaction without increasing danger.

Q2: Can water or foam extinguishers be used on Class C fires?
No. Water and foam can spread flammable gases or cause dangerous reactions. Use dry powder or clean agent extinguishers instead.

Q3: How do ABC and Monnex extinguishers differ?
ABC dry powder extinguishers are general-purpose for solids, liquids, gases, and electrical fires. Monnex extinguishers are industrial-grade powders with superior effectiveness for flammable liquids, gases, and electrical hazards.

Q4: When do I need a Class C extinguisher?
If you store or work with flammable gases—such as in welding shops, labs, kitchens with gas appliances, or gas storage—you should have a Class C-rated extinguisher nearby.

Q5: How often should I service a Class C extinguisher?
Visually inspect monthly and have a professional service annually. Replace or recharge after use.

Q6: Are clean agent extinguishers good for Class C fires?
Yes, especially in sensitive locations like server rooms where residue from powder extinguishers is undesirable.

Electrical fires

Electrical Fires – How are they caused, and how do we deal with them?

by Information

Electrical fires are fires that originate from issues within electrical systems, equipment, or devices. These fires arise when electrical components experience overheating, electrical arcing, or short circuits, which can, in turn, ignite nearby materials like insulation, wiring, or flammable substances.

How do they occur?

One primary factor contributing to electrical fires is overloading circuits, a scenario in which an excessive number of electrical devices or appliances are connected to a single circuit, resulting in an excessive current flow that overheats the wires and potentially leads to a fire hazard. 

Additionally, faulty wiring poses a substantial risk, particularly in cases of aged or damaged wiring with inadequate insulation or improper installation. Wiring that is exposed, frayed, or corroded can also be very dangerous. Electrical equipment malfunctions, such as defective switches, outlets, or appliances, can also be triggers for fires, highlighting the importance of regular maintenance and inspection of electrical systems to prevent these hazardous incidents.

How to identify an electrical fire?

Identifying an electrical fire is crucial for ensuring safety in your home or workplace. There are several key signs to watch for. First and foremost, look for any unusual smell, often described as a burning or melting smell, which may indicate overheating or melting of electrical components. Many people say an electrical fire can emit a fishy scent. This typically means it has just started. The fish odour is caused by electrical components overheating that haven’t begun to burn up. Their heat-resistant chemical coatings can also release a fishy smell when burned.

Also keep an eye out for sparks or flashes of light coming from electrical outlets or appliances, as these can be clear indicators of an electrical fire. If you hear crackling or buzzing sounds near electrical outlets or wiring, it could suggest a potential fire hazard. 

How to deal with electrical fires?

Dealing with these fires requires a cautious and systematic approach to ensure safety.

Stay Calm: The first and most crucial step is to remain calm. Panic can lead to hasty decisions that may worsen the situation.

Cut the Power: Quickly locate the power source and shut it off. This can be done by switching off the circuit breaker or unplugging the affected appliance. Cutting the power supply is essential to prevent further electrical flow to the fire.

Use a Fire Extinguisher: If the fire is small and contained, you can attempt to extinguish it using the correct fire extinguisher, which is designed for electrical fires. Ensure you know how to use the extinguisher properly, following the PASS (Pull, Aim, Squeeze, Sweep) technique. For types of fire extinguishers view lower down in this post.

DO NOT Use Water: Never use a standard water fire extinguisher to put out an electrical fire. Water conducts electricity and can lead to electrical shock or the spread of a fire.

Evacuate Safely: If the fire grows beyond your control, or if you are unsure about how to handle it, prioritise your safety and evacuate the premises. Close doors behind you to contain the fire and prevent its spread. Call the fire service immediately from a safe distance.

Wait for Professionals: Even if you believe you have extinguished the fire, it’s essential to wait for the fire department to arrive and confirm that it is safe. Electrical fires can reignite, and professionals have the necessary tools and expertise to handle them.

Remember, safety should always be the top priority when dealing with electrical fires. If in doubt, evacuate and call the professionals. It’s better to be cautious and let trained firefighters handle the situation.

Which fire extinguishers can fight electrical fires?

Electrical fires as we have explained are very dangerous. This means they are more difficult to contain and extinguish. Electrical fires are not their own fire classification which also makes them more difficult to handle. They however can be fought and extinguished with these extinguishers:

Dry Powder – Dry Powder fire extinguishers are very versatile and a main staple in a lot of fire safety setups. These fire extinguishers can be used on Class A, Class B, Class C and Electrical fires making them the most versatile fire extinguisher on the market. Electrical fires aren’t their own class of fire because they are seen as more a form of ignition than fuel. But when Electricity is present, Water must not be used.

CO2 – CO2 fire extinguishers are perfect for fighting Class B fires and Electrical fires. Its properties allow it not to damage electrical equipment so therefore makes it a great choice for situations where electrical fires are a risk. CO2 extinguishers have a B fire rating but can also combat electrical fires. 

Electrical fires aren’t their own class of fire because they are seen as more a form of ignition than fuel. CO2 extinguishers are good as they do not leave a harmful residue behind, this is what makes them desirable compared to a lot of the other extinguishers.

To find out more about these types of extinguishers and all the other types of extinguishers, check out our explanation of all the types HERE.

Conclusion

In conclusion, electrical fires can be incredibly dangerous and potentially life-threatening situations that can arise from various sources, such as faulty wiring, overloaded circuits, or damaged appliances. Understanding the causes and being prepared to deal with these fires is crucial for ensuring the safety of yourself and those around you.

By understanding the causes of electrical fires and knowing how to respond effectively, you can significantly reduce the potential harm they pose. Fire safety is a shared responsibility, and being prepared can make all the difference in preventing damage, injuries, and even fatalities.

Dry Powder fire extinguisher prices

Dry Powder Fire Extinguisher Prices

by Types of Fire Extinguisher

Dry Powder fire extinguishers are one of the most versatile fire extinguishers on the market. They can combat Class A, Class B, Class C and Electrical Fires. Dry Powder also has the ability to be stored at virtually any temperature, making it perfect for an outdoor location full year-round. Dry Powder fire extinguisher prices are varied between models and sizes.

Budget Dry Powder Fire Extinguisher Prices

These extinguishers are our lowest price point Dry Powder extinguishers that we offer in their respective sizes. These models still have ABC fire ratings and have all the features of the Dry Powder extinguisher. These models are the cheaper models to our standard range and do not have the same fire ratings.

Standard Dry Powder Fire Extinguishers

These extinguishers are our standard high-quality range of Dry Powder fire extinguishers. This range is the amazing CommanderEDGE range.

Stainless Steel Dry Powder Fire Extinguisher Prices

Not only do these Stainless Steel fire extinguishers look fantastic, but they also have extra use. Due to the alloy used to make the Stainless Steel look containing Chromium, these extinguishers also do not rust.

Decorative Dry Powder Fire Extinguisher Prices

If the regular models aren’t your style, try these 6kg models in Antique Copper and Polished Gold. These extinguishers are very sophisticated and will fit in with any opulent setting.

Available Accessories

We stock the full range of signage that perfectly pair with Dry Powder fire extinguishers. This includes the photoluminescent sign and all decorative ID signs.

Stands & Storage

We also stock a wide range of Stands and Storage solutions to help with looking after your fire extinguishers. These come in all different sizes and price ranges to help you find the best storage solution for whatever your fire safety storage needs are. These can come as either simple brackets or fully lockable storage boxes.

fire safety regualtions for lorries

Fire Safety Regulation for Lorries/ Trucks

by Rules and Regulations

The fire safety regulations for lorries and trucks explain how many extinguishers are required in terms of weight of the vehicle. The table below sets out a summary of the minimum requirements for fire extinguishers depending on weight of the vehicle for HGVs or Lorries. Dry Powder extinguishers are specified because it is known that they are suitable for tackling fires of Class A (solids such as wood, paper or any carbonaceous materials), Class B (fires involving liquids) and Class C (fires involving gases) therefore they are commonly known to be the best fit for a vehicles fire safety needs.

Vehicle (max permissible mass)Minimum dry powder fire extinguisher provision
Up to 3.5 tonne2kg for cab
plus 2 kg
Over 3.5 tonne and up to 7.5 tonne2 kg for cab
Total 8 kg (usually one 6 kg but other provision is acceptable as long as there is one 6 kg)
Over 7.5 tonne2 kg for cab
Total 12 kg (including at least one 6 kg)
Any vehicle carrying dangerous goods under the” small load” limit or carrying only infectious substancesOne 2 kg only
different types of fire extinguishers

Types of Fire Extinguishers

by Types of Fire Extinguisher

Introduction

This is a guide into all the different types of fire extinguishers that we offer at Fireology. In this guide we will show you all the different types of fire extinguishers. As well as what are each of their strengths and weaknesses.

It will explain what classes of fire each one of the extinguishers can tackle. Also this will state what extinguisher suits best to each class of fire. This guide shows the benefits of all of these types of extinguishers. As well as why a certain type of extinguisher may be a better fit for you compared to a different type of extinguisher.

Water Fire Extinguishers

Foam Fire Extinguishers

Dry Powder Fire Extinguishers

CO2 Fire Extinguishers

WetCHEM Fire Extinguishers

L2 Powder Fire Extinguishers

MultiCHEM Fire Extinguishers

Monnex Dry Powder Fire Extinguishers

M28 Powder Fire Extinguishers

Water Fire Extinguishers

Water fire extinguishers are the most accessible fire extinguisher. This is likely because of their low price point and their ability to cover the most common type of fire. Water extinguishers are given an A fire rating, meaning they are capable and suited for extinguishing Class A type fires.

Class A fires are fires involving solids such as paper or cardboard, any carbonaceous item fires are defined as Class A fires. This is the most common type of fire as these items are the most combustible and are the most common type of fuel.

Water fire extinguishers do not have the ability to cope with Electrical fires and must not be used on Electrical fires. This type of fire extinguisher is most appropriate for areas that’s biggest fire risk is a solid material and therefore Class A fire.

Foam Fire Extinguishers

Foam fire extinguishers are a very commonly used type of fire extinguisher. This is because they are a good multi purpose fire extinguisher that can tackle Class A and Class B fires. Foam fire extinguishers are given an AB fire rating, meaning they are capable of extinguishing Class A and B Fires.

Fires labelled Class A are fires involving solids such as paper or cardboard, any carbonaceous item. Class B fires are fires involving liquids, these can be any of the likes of: Cleaning fluids, Solvents, Fuels, Inks, Adhesives, Paints. Class B fires only make up for 2% of all fires but make up a massive 21% of all fire deaths.

Class B fires are extremely dangerous, this is why many different types of extinguisher aim to tackle them to try to protect the users. The main key to staying safe from Class B fires is prevention, this is why up to date COSHH assessments are key. The best fire extinguishers to combat Class B fires are Foam and Dry Powder extinguishers.

Dry Powder Fire Extinguishers

Dry Powder fire extinguishers are a very versatile fire extinguisher that is a main staple in a lot of fire safety setups. These fire extinguishers can be used on Class A, Class B, Class C and Electrical fires making them the most versatile fire extinguisher on the market. Dry Powder extinguishers are given an ABC fire rating but can also tackle Electrical fires.

Class A fires are fires involving solids such as paper or cardboard, any carbonaceous item. Class B fires are fires involving liquids, these can be any of the such as cleaning fluids, solvents, fuels, or inks. Class C fires are fires involving gases, this could be natural gas, LPG or any other gases forming a flammable or explosive atmosphere.

Class C fires can be tackled with fire extinguishers, the best method of stopping these types of fires is shutting off the supply of the gas. Electrical fires aren’t their own class of fire because they are seen as more a form of ignition than fuel. But when Electricity is present, Water must not be used. Unlike Foam extinguishers, Dry Powder extinguishers have the ability to be used on ‘running’ flammable liquid fires.

CO2 Fire Extinguishers

CO2 fire extinguishers are perfect for fighting Class B fires and Electrical fires. Its properties allow it not to damage electrical equipment so therefore makes it a great choice for situations where electrical fires are a risk. CO2 extinguishers have a B fire rating but can also combat electrical fires. Class B fires are fires involving liquids, these can be any of the such as cleaning fluids, solvents, fuels, or inks. Electrical fires aren’t their own class of fire because they are seen as more a form of ignition than fuel.

CO2 extinguishers are good as they do not leave a harmful residue behind, this is what makes them desirable compared to a lot of the other extinguishers that can fight Class B fires. CO2 extinguishers are also looked at as more environmentally friendly as CO2 is in the air around us anyway so it does not contribute to global warming. 

WetCHEM Fire Extinguishers

WetCHEM fire extinguishers are perfect for kitchens as they are able to fight Class F fires. WetCHEM extinguishers have an AF fire rating making them equipped to fight Class A or F fires. Class A fires are fires involving solids such as paper or cardboard or any carbonaceous items. Class F fires are fires involving deep fat frying and spillages of flammable oils near heat sources. These fires are often found in kitchen environments.

WetCHEM fire extinguishers offer an “easy clean” design making them ideal for kitchens and maintaining hygiene regulations. This type of fire extinguisher works by creating a layer of foam on the burning oil or fat, stopping the supply of oxygen so the fire isn’t fuelled any further. For tiny Class F fires a fire blanket could be used but in most cases a WetCHEM extinguisher would be recommended.

These types of fire can be extremely dangerous and only a small sized fire would be recommended to be fought with one of these extinguishers.

L2 Powder Fire Extinguishers

L2 Powder fire extinguishers are a unique type of fire extinguisher aimed at combating Class D fires. Class D fires are niche so therefore are not covered by the conventional types of fire extinguishers. Class D fires are fires involving combustible metals such as potassium and magnesium.

Where L2 powder extinguishers thrive is that they are equipped to deal with lithium fires. This is what makes them stand out over M28 extinguishers (which can’t deal with lithium fires). Class D fires are very dangerous as if the wrong extinguishing medium is used, it can actually accelerate the fire. This can happen if a chemical or water extinguisher is used. 

MultiCHEM Fire Extinguishers

MultiCHEM fire extinguishers are a great multi class fire extinguisher. They are given an ABF fire rating, this means they are able to combat Class A, B and F fires. This makes them a step above WetCHEM extinguishers and ordinary Foam extinguishers. This is because they can combat an extra type of fire than each. Class A fires are fires involving solids such as paper or cardboard or any carbonaceous items. Fires labelled Class B are fires involving liquids, these can be any of the such as fuels, or inks. Class F fires are fires involving deep fat frying and spillages of flammable oils near heat sources. This fire is often found in kitchen environments.

The glory of this type of fire extinguisher is how versatile it is and can be. This perhaps could be used as a perfect kitchen/bar fire extinguisher as its abilities are perfect to combat most of the scenarios that could occur.

Monnex Dry Powder Fire Extinguishers

Monnex dry powder fire extinguishers are one of the most trusted high performance dry chemical powder for high risk firefighting applications. This extinguisher is given a BCE fire rating making it equipped to tackle Class B, Class C and Electrical fires.

Fires labelled Class B fires are involving liquids, these can be any of the such as fuels, or inks. Fires labelled Class C are fires involving gases, this could be natural gas or any other gases forming a flammable or explosive atmosphere. Electrical fires aren’t their own class of fire because they are seen as more a form of ignition than fuel.

It is the preferred choice when tackling fires involving hydrocarbon oils, gasoline, diesel and liquefied natural gas. These extinguishers can be used where those materials are stored and or processed. It’s especially effective against industrial chemicals like alcohol, ketones, ethers and esters. These are materials which conventional dry chemical powders find more difficult to knock down.

The grain of the powder inside of Monnex extinguishers is measured and made sure that when projected from the extinguisher it will ensure maximum projection. This allows the operator to maintain a good distance from the fire.

M28 Powder Fire Extinguishers

M28 powder fire extinguishers are a great option when in a laboratory or a workshop environment. Wherever a potential risk of a fire comes from metals. This fire extinguisher is given a D fire rating, this means it can only be used on Class D fires. Class D fires are fires involving combustible metals such as potassium and magnesium.

Where the M28 loses out in comparison to the L2 Powder extinguisher is that it cannot put out lithium fires. This isn’t important if lithium fires aren’t a risk. If lithium fires aren’t a risk you will benefit from the M28’s lower price point. Class D fires are very dangerous as if the wrong extinguishing medium is used, it can actually accelerate the fire. This can happen if a chemical or water extinguisher is used.