If a boiler isn’t properly maintained, they can become dangerous. One of the most serious boiler issues is a blocked or poorly maintained flue. This can allow carbon monoxide gas to silently seep into your home without warning, a serious risk to your health and even your life. Understanding the dangers and knowing how to prevent this issue can help keep you and your family safe.
Carbon Monoxide Poisoning
Carbon monoxide is an odourless and colourless gas, which means it can’t be detected without an alarm. It is produced when a fuel, such as gas or oil, does not burn completely. Normally, a boiler’s flue safely carries this gas outside, but if the flue is blocked or damaged, carbon monoxide can build up inside the home.
Breathing in carbon monoxide reduces the oxygen in your blood, leading to symptoms such as headaches, dizziness, nausea and confusion. In severe cases, prolonged exposure can cause unconsciousness, brain damage or even death. Because the symptoms can be mistaken for the flu, many people don’t realize they are being poisoned until it’s too late.
What Causes a Blocked Flue?
A boiler flue can become blocked for several reasons, including:
- Debris build-up – Over time, leaves, dust and other debris can accumulate in your flue, preventing proper ventilation.
- Bird nests – Birds and small animals sometimes build nests inside the open flues, blocking the airflow.
- Snow or ice build-up – In cold weather, ice can form inside or around the flue, restricting the release of all the harmful gases.
- Rust or damage – A cracked or corroded flue can leak gases into the home instead of venting them outside. If you suspect something is wrong, organize boiler repair Gloucester from a company such as hprservicesltd.com/gloucester-boilers/boiler-repair-gloucester that will be able to help.
How to Prevent Carbon Monoxide Leaks
The best way to protect yourself from carbon monoxide poisoning is through regular boiler maintenance. Have a professional inspect and service your boiler at least once a year to ensure it is working safely.
