Not sure why CO dets would be considered as boiler, plant etc was remote. Did not see anything that would contribute to a CO risk either.
Having read a number of threads recently including this one there does seem to be some confusion on CO fire detection and Carbon Monoxide detectors.
So here goes –
Carbon Monoxide is invisible odourless and tasteless gas produced by incomplete combustion e.g. faulty household appliances such as gas and oil boilers, water heaters or ovens. They usually sound a warning if the levels reach 100ppm over 90 minutes, 200ppm over 35 minutes or 400ppm over 15 minutes. Two basic types of detectors
1. Biometric – sticky pads that change colour.
2. Gel cell detectors – photoelectric eye that senses a colour changes in a chemically treated disk of gel, this mimics the body’s response to CO absorption usually battery or mains powered.
These should not be confused with CO detectors used to detect fire.
These electronic detectors protect against fire by sensing low amounts of CO in the air normally operate at 30-50ppm. There isn’t a relevant BS or European standard but should operate within 60 seconds of the concentration reaching 60ppm
Effective for deep seated smouldering fires.
Do not pick up flaming fires or fires not involving carbon.
Good for hotels rooms and residential care bedroom but not recommended for escape routes.