Do I need a carbon monoxide alarm if I have a gas boiler?
Yes. Since the 2022 amendment regulations, a carbon monoxide alarm is required in every room used as living accommodation that contains a fixed combustion appliance, other than a gas cooker.
3 min read · Updated 2 August 2026
Overview
Yes. Since the 2022 amendment regulations, a carbon monoxide alarm is required in every room used as living accommodation that contains a fixed combustion appliance, other than a gas cooker. A boiler in a kitchen or cupboard counts.
Practical guidance
- Site the alarm according to the manufacturer's instructions, not just nearby.
- Test on the first day of the tenancy and record the test in the inventory.
- Repair or replace as soon as a fault is reported.
Related content
General information for UK landlords and letting agents, not legal advice. Rules differ across England, Wales, Scotland and Northern Ireland — check your local requirements or take advice before acting.