Bioethanol Fireplace Fire Extinguishers: What You Really Need to Stay Safe

Think your bioethanol fireplace is all cozy vibes and zero risk? Think again—bioethanol is flammable (shocking, we know). Short answer: You need a Class B fire extinguisher. Why? Because safety doesn’t have to be boring. Keep reading to find the right type, UK standards, and eco-friendly fire-fighting tips!

Understanding the Unique Nature of Bioethanol Fires

What is Bioethanol Fuel?

Alcohol-based, clean-burning liquid

Bioethanol is a clear, alcohol-based fuel made from plants like sugarcane or corn. It’s known for burning cleanly—no smoke, no ash, and no need for chimneys. That makes it a stylish favourite for modern homes, especially where you want the look of a fire without the hassle.

But here’s the kicker: while it looks lovely and feels eco-fancy, it’s still highly flammable. You're dealing with alcohol, after all—not fairy dust.

Why Standard Water Extinguishers are Ineffective

Alcohol-based fires require specific extinguishing agents

When a bioethanol fire kicks off, your standard water extinguisher won’t just fail—it might make things worse. That’s because alcohol fires behave differently than solid fuel fires. They need something that can tackle liquids, not logs.

Water can spread the flame and intensify the fire

Throwing water on a bioethanol fire can actually spread the fuel, which spreads the flames. Imagine tipping a pint over a candle—it splashes, flares up, and becomes a nightmare. That’s why water is a big no.

Recommended Fire Extinguisher Types for Bioethanol Fires

Carbon Dioxide (CO₂) Extinguishers

How they work (displaces oxygen)

CO₂ extinguishers smother fires by pushing out the oxygen around them. No oxygen = no fire. Simple, right?

Advantages (clean, no residue)

They’re ideal if you hate mess. You won’t be scrubbing white powder off your hardwood floors—just a clean blast of carbon dioxide and it’s done.

Limitations (limited range, not ideal for large spills)

But if you’re dealing with a larger spill or a fire that’s spread, CO₂ might struggle. It’s best for small, contained fires.

Dry Chemical Powder Extinguishers (ABC or BC rated)

How they work (interrupts chemical reaction, smothers fire)

These are the all-rounders of fire safety. The powder stops the chemical reaction that keeps the fire burning, while also blanketing the flames to cut off oxygen.

Advantages (versatile, effective on liquid fires)

Great if you’ve got multiple fire risks in your home. They work on electrical, gas and flammable liquid fires—so you’re well covered.

Limitations (messy residue, can damage electronics)

The downside? Powder goes everywhere. It’s not something you want on your TV, laptop, or that fancy surround sound system.

Alcohol-Resistant Aqueous Film-Forming Foam (AR-AFFF) Extinguishers

How they work (forms a blanket over the liquid, cools, smothers)

This is the gold standard for flammable liquid fires like bioethanol. AR-AFFF forms a thick foam that covers the fuel, cools it, and stops oxygen from feeding the flames.

Designed specifically for alcohol fires (prevents foam breakdown)

Regular foam can break down when it hits alcohol-based fuel—but AR-AFFF is designed to handle it. It won’t dissolve or weaken, so it stays effective.

Advantages (very effective for liquid fires, prevents re-ignition)

AR-AFFF is brilliant at preventing re-ignition, making it a top choice if you want peace of mind.

Limitations (can be more expensive, less common for domestic use)

The catch? It can cost more, and it’s not something every DIY store stocks. But if you use your fireplace often, it’s well worth sourcing.

Fire Blankets (for very small, contained fires)

How they work (smothers oxygen)

Fire blankets are perfect for small fires—think a flare-up inside the burner. Just throw the blanket over the flames and it cuts off the oxygen.

When they are appropriate

Ideal for situations where the fire hasn’t spread. If you catch it early, a fire blanket is quick, easy and clean.

What to Do in Case of a Bioethanol Fire

Prioritise Safety: Assess the Situation

If the fire is small and contained (e.g., within the burner)

Don’t panic. If it’s still within the burner and hasn’t spread, use a fire blanket or a CO₂ extinguisher. Move calmly and confidently.

If the fire has spread or is out of control

If it’s jumped to your rug, curtains, or furniture, evacuate immediately. Don’t waste time wrestling with it—get out and call the fire brigade.

Immediately Cut Off Fuel Supply (if possible)

If it’s safe to do so, shut off the fuel. This will stop the fire from growing. Never try this if it puts you in harm’s way.

Evacuate the Area and Call Emergency Services (if necessary)

If it’s beyond a small flare-up, treat it seriously. Dial 999 and don’t return inside until the all-clear.

How to Use the Recommended Extinguishers

PASS method (Pull, Aim, Squeeze, Sweep)

• Pull the safety pin

• Aim the nozzle at the base of the flames

• Squeeze the handle

• Sweep side to side until the fire goes out

Aiming at the base of the flame

Always aim low—straight at the base of the flame. That’s where the fuel is. Spraying the flames above is about as useful as shouting at smoke.

Where to Keep Your Fire Extinguisher

Easily Accessible Location Near the Fireplace

Keep your extinguisher where you can grab it quickly—think under the stairs, hallway cupboard, or even mounted near the fireplace.

Not too Close to the Fire Hazard Itself

Avoid keeping it right next to the fire. You don’t want to risk burning your hands trying to reach it.

Important Safety Reminders

Never Use Water on a Bioethanol Fire

Say it with us: never use water on a bioethanol fire. It spreads the flames and turns a small problem into a big one.

Ensure Your Fire Extinguisher is Maintained and Fully Charged

Check it every few months. Look at the pressure gauge, inspect the hose, and make sure it’s not expired. An extinguisher that doesn’t work is just wall art.

Educate Household Members on Fire Safety and Extinguisher Use

It’s not just your job. Make sure everyone in your home knows how to use the extinguisher and what to do in an emergency.

Preventative Measures are Key (safe fueling, proper clearances)

Always refuel when the burner is cool. Use a funnel, keep flammable items well clear, and never overfill the reservoir. Prevention is always better than cure.

Other articles our customers have found useful:

• Bioethanol Fireplace Safety Precautions: Stay Safe While Staying Cosy
• Bioethanol Fireplace Fire Extinguishers: What You Really Need to Stay Safe