Carbon Monoxide from stoves? A silent killer! Here's how to prevent it from escaping your fireplace.

Carbon Monoxide from stoves? A silent killer! Here's how to prevent it from escaping your fireplace.


Wood stoves are a popular choice for home heating, offering a cozy atmosphere and a sustainable alternative to fossil fuels. However, it is crucial to be aware of the potential danger of carbon monoxide (CO) that can be released during wood burning. Carbon monoxide is a colorless, odorless, and toxic gas that can be harmful to human health if proper precautions are not taken. In this article, we will explore the risks associated with carbon monoxide in wood stoves and present the main remedies to prevent the release of this dangerous gas.

1. What is Carbon Monoxide?

Carbon monoxide is a byproduct of incomplete combustion of fossil fuels, including wood.

During combustion, oxygen combines with the carbon in the wood to produce carbon dioxide (CO2) and, under inefficient combustion conditions, carbon monoxide.

Unlike CO2, carbon monoxide is highly toxic and can be lethal in high concentrations.

2. Risks Associated with Carbon Monoxide

Exposure to carbon monoxide can cause a range of symptoms, from mild to severe, depending on the concentration and duration of exposure. Common symptoms include headache, nausea, dizziness, fatigue, and mental confusion. In severe cases, carbon monoxide poisoning can lead to loss of consciousness, permanent brain damage, and even death. It is important to emphasize that carbon monoxide is a ""silent killer"" as it is odorless and colorless, making it difficult to detect its presence without specific tools.

3. Safety Checks for Wood Stoves

To prevent the release of carbon monoxide during the use of wood stoves, it is crucial to follow some essential safety checks:

3.1 Chimney Installation and Inspection

Before using a wood stove, it is important to ensure that it has been installed correctly and that a thorough chimney inspection has been conducted by a qualified professional. A faulty installation or a damaged chimney can increase the risk of carbon monoxide leaks in the home environment.

3.2 Regular Maintenance

Another crucial preventive measure is regular chimney maintenance. This involves periodic cleaning of the chimney and removal of accumulated ash and combustion residues. A dirty or blocked chimney can compromise proper combustion and increase carbon monoxide production.

3.3 Draft Control

Chimney draft is a fundamental aspect to ensure proper air circulation and effective combustion. If the draft is insufficient, carbon monoxide produced during combustion may not be adequately vented. It is advisable to regularly check the chimney draft and, if necessary, adjust it to optimize safe combustion.

To solve the chimney draft issue, simply install a Gemi chimney aspirator that you can find in this section.

4. Installation of Carbon Monoxide Detectors

An additional highly recommended safety measure is the installation of carbon monoxide detectors near the wood stove and in living areas. These devices can detect the presence of carbon monoxide in the air and alert occupants in case of dangerous concentrations. Ensure that the detectors are installed correctly and that the batteries are regularly replaced to ensure their proper functioning.

5. Adequate Ventilation

Good ventilation is essential to ensure the circulation of fresh air and the elimination of carbon monoxide. Make sure that living areas are properly ventilated, especially when the wood stove is in use. Opening windows or using mechanical ventilation systems can help reduce the concentration of carbon monoxide in the home environment.


Carbon monoxide poses a real danger in wood stoves, but with the right precautions and safety checks, the risk can be significantly reduced.

Thanks to Gemi chimney aspirators that allow:

1) Improve chimney draft, promoting the evacuation of potential harmful gases outside the home

2) Increase ventilation in our living spaces

3) Keep the chimney clean from soot buildup

safe combustion can be achieved, protecting the health of the home occupants.

Remember, safety always comes first when it comes to wood stoves.

A testimony from one of our customers who has permanently solved the issue of harmful gas emissions?
Here it is:

Within the Gemi universe, we are proud to present our wide range of chimney aspirators, eachwith unique features that will meet the various needs of our customers. Our dedication toexcellence has guided us in developing a diverse selection of models, ensuring that everydetail has been carefully designed and crafted.

Basechimney aspirators: For those seeking reliable and efficientsolutions, we offer our line of base chimney aspirators. These models are designed toprovide solid performance at an affordable cost, ensuring effective smoke removal withoutcompromising quality.
Main features: 300°C suction, 3 years warranty, and 2500 M³/hsuction power.

Professionalchimney aspirators: If you're looking for professional-levelperformance characterized by even more power and reliability, our professional smokeextractors are the ideal choice.
Main features: 700°C suction, 6 years warranty, and 3800M³/h suction power.

Our collection also extends to a variety of extractors made with high-quality materials,including stainless steel and copper.

Steelchimney aspirators: Steel extractors embody modern elegance and arebuilt to withstand the challenges of time, offering efficient suction and sophisticatedstyle.

Electric smoke extractor with 6 speeds, entirely designed in AISI 304Stainless Steel. Thanks to its structure, the smoke extractor resists corrosion caused byatmospheric agents and salt air, for increased durability over time. Motor force 3800m³/h,installable on any chimney size. Smoke extractor resistant up to 700°C, in case of fire.

Copper chimneyaspirators: On the other hand, copper extractors not only reflectclassical beauty but also boast durability features.
The copper chimney cap smokeextractor is the top of the range among Gemi electric aspirators. Built entirely in AISI 304Stainless Steel, to allow resistance to atmospheric agents and salt air. Attention is alsopaid to aesthetics, thanks to the copper plating. Like the "Moor's head" professional model,it extracts 3800m³/h and resists up to 700°C. Smoke problem resolution guaranteed. Ideal forfireplaces, stoves, barbecues, ovens, etc. Warranty on the entire chimney aspiratorstructure for 10 years.

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