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Carbon Monoxide –  EN 50292:2013

What is Carbon Monoxide – European Norm EN 50292:2013?

EN 50292:2013 is the European standard that provides guidance on the selection, installation, use, and maintenance of Carbon Monoxide (CO) alarms in domestic premises, caravans, and boats. It complements EN 50291, which sets the performance requirements for CO alarms.

  • EN 50291-1:2010 + A1:2012 – Performance requirements for CO alarms in domestic premises.
  • EN 50291-2:2010 – Performance requirements for CO alarms in caravans and boats.
  • EN 50292:2013 – Guidance on where and how to install CO alarms for maximum protection.

Why is this important?

Carbon Monoxide is a silent killer—you cannot see, smell, or taste it. It is produced when fuels such as gas, oil, coal, wood, or ethanol do not burn completely. Proper installation of CO alarms is essential to detect leaks early and protect lives.

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Where should CO alarms be installed?

According to EN 50292:2013, alarms should be positioned to ensure early detection and audibility throughout the property:

  • Rooms with fuel-burning appliances (e.g., open fires, gas cookers, boilers, stoves).
  • Rooms where people sleep (bedrooms).
  • Rooms where people spend significant time (living rooms).
  • Any room with a flue running through it.
  • Boiler rooms or utility spaces with combustion appliances.
  • Bathrooms with fuel-burning appliances, only if the alarm is rated for high humidity (check manufacturer guidance).

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Installation tips:

  • Mount alarms 1–3 meters horizontally from the appliance, at breathing height (e.g., head height when sleeping).
  • Avoid corners, dead air spaces, and locations near vents or extractor fans.
  • Do not install alarms directly above appliances.
Keeping People Safe and Well in their Homes.

CO Sources to Consider

Carbon Monoxide can be produced by:

  • Gas, oil, or solid fuel appliances.
  • Open fires and wood-burning stoves.
  • Portable heaters.
  • Appliances burning ethanol or wood pellets.

Compliance and Certification

When choosing a CO alarm:

  • Ensure it is certified to EN 50291-1 (domestic) or EN 50291-2 (caravans/boats).
  • Look for recognized third-party certification marks such as  or NSAI approval.
  • Verify that the product meets requirements for:
    • Sensor accuracy and reaction time.
    • Minimum sound level (85 dB at 3 meters).
    • Temperature and humidity resistance.

Irish Regulatory Requirements

  • Building Regulations Part J (Heat Producing Appliances) require CO alarms in rooms with combustion appliances and adjacent sleeping areas.
  • Housing (Standards for Rented Houses) Regulations 2019 mandate mains-powered smoke alarms and CO alarms in rental properties.
  • Compliance with these regulations is essential for safety and legal obligations.

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