Carbon Monoxide (CO) is a colourless, odourless and tasteless gas produced when fuels such as wood, coal or gas burn without enough oxygen. A blocked or restricted chimney flue can cause CO to build up inside your home instead of venting safely outside.
1. Why Chimney Sweeping Matters
The purpose of a chimney is to remove smoke and combustion gases from your living space. Soot, creosote and debris — especially in older properties across Hertfordshire — can restrict airflow. When gases cannot escape, they are pushed back into the room, increasing the risk of CO exposure.
2. Ventilation Is Essential
Many homes in Northamptonshire and Buckinghamshire have been upgraded with modern draught‑proofing. While great for energy efficiency, it can reduce the oxygen supply needed for clean combustion. Poor ventilation leads to higher CO production and poor appliance performance.
3. CO Alarms Save Lives
Regulations require a Carbon Monoxide alarm in any room containing a new or replacement solid‑fuel appliance. I recommend all Bedfordshire customers test their alarms weekly and ensure they are positioned correctly — typically at head height and 1–3 metres from the appliance.
Regular sweeping, a smoke draw test and a properly installed CO alarm are the most effective ways to protect your home and family.