If you buy a fixed split air-conditioning system online in Great Britain, you may encounter a request for installer details before the retailer completes the sale. This is not simply an extra store policy: it can be part of the legal requirements governing equipment containing fluorinated greenhouse gases, commonly called F-gases.

GOV.UK guidance distinguishes between hermetically sealed and non-hermetically sealed equipment. Before selling non-hermetically sealed equipment containing F-gas to an end user, the seller must ask for details of the qualified technician who will install the equipment and check that those details are valid.

This matters because a typical split air conditioner has refrigerant connections that are completed during installation. The work should not be treated like plugging in a normal household appliance.

People working on stationary refrigeration, air-conditioning and heat-pump systems containing F-gas need appropriate qualifications. Companies servicing stationary F-gas equipment operated by others also need company certification in the circumstances described by GOV.UK.

For an online customer, the purchasing process should therefore be simple and transparent. If you choose the retailer’s installation service, the retailer can arrange an appropriately qualified installer. If you are buying equipment only, you may be asked to provide the installer or installation-company details before the order can be released where the rules apply.

Portable air conditioners can be different because the refrigerant circuit is typically factory sealed and the user does not connect refrigerant pipework during normal setup. The exact regulatory treatment depends on the equipment, so product information should be checked.

F-gas rules are also relevant to servicing and repairs. Refrigerant should not be handled by an unqualified DIY user. Faults involving leaks, refrigerant charging or opening the refrigeration circuit require appropriate professional attention.

For retailers, good compliance can also improve customer experience. The checkout should explain why installer information is requested, allow customers to select professional installation, and avoid shipping restricted equipment before the required checks are complete.

Our website offers two routes: choose AC with professional installation, or buy equipment-only and provide the required qualified-installer information where applicable.

Sources checked: GOV.UK ‘Selling F gas in cylinders or equipment’; GOV.UK ‘Working with fluorinated gas (F gas)’. Rules can change, so this page should be reviewed periodically.