Hi all. quick question. Is there are legal requirement to fit a Carbon monoxide detector in a commercial premises? This is an office environment with a gas boiler on site. I googled 'Carbon monoxide detectors' and kept getting advice on residential premises. My opinion, not needed as the boiler is regularly serviced (Gas-Safe) and no-one sleeps on the premises. Would like to hear yours. Many thanks.

Thanks Ian.

In the absence of specific legislation (and I am not aware of any), the need for a monitor will be determined by risk assessment under HASWA and COSHH. One does not need to be asleep to be affected by CO, so simple issues to address in an assessment would be: Type and siting of boiler Maintenance Volume of room in which it is located air flow and changes per hour whether people are routinely in vicinity (especially anyone who spends considerable periods of time in close proximity) etc,etc. You get the idea. This brings to mind the very sad recent case of the mother and daughter who died on a boat in the lake district. Obviously a different scenario to the one the OP is describing, but a CO detector was installed and would have alerted the occupants to the CO build-up if it had power to it.... Very sad. As Canopener commented, the price of detectors is low and they are easily fitted, so this could easily be argued to be reasonably practicable in a work environment.