Landlords are legally obliged to ensure a gas safety registered engineer conducts a survey and certifies properties as safe; failure to do so is a criminal offence and could result in a tenant fatality and a landlord being imprisoned.
Certificates must be retained for two years and
displayed in HMOs as well as
holiday lets and
made available for tenant inspection prior to occupation.
In addition, though not a legal requirement, landlords can for a small additional cost, service the boiler and system. What better way to evince due diligence?
From 2013 flues must be accessible and capable of inspection to minimise the risk of carbon monoxide poisoning e.g. from a concealed underfloor flue.
Any construction and boiler provision must comply with ACoP
Mains and battery backup powered carbon monoxide detectors save lives.
Boilers fitted in lofts are more difficult to access but as CO is lighter than air, any leak disperses into the atmosphere, not into the house.