What paperwork will I receive after a gas, oil or LPG boiler installation?

The paperwork you receive depends on the fuel, appliance and work included, but it should show that the boiler was installed, tested and commissioned correctly. We provide the relevant certificates, registration details, manuals and records for the installation, rather than leaving you to identify them later.

The commissioning record records the checks made when the boiler is first put into operation. It normally includes the appliance make and model, serial number, installation details, operating settings and safety checks. For a gas boiler, the engineer records the flue and combustion checks. For an oil boiler, the record includes the burner and combustion readings. LPG installations have their own commissioning and safety checks.

These details matter when the boiler is serviced or repaired. The serial number identifies the exact appliance, while the commissioning information gives a future engineer a starting point if the settings or performance need investigating.

Gas installations include the records required for gas work. We complete the relevant gas safety and commissioning documentation and arrange the building regulations notification where applicable. The notification provides evidence that the installation has been self-certified by a Gas Safe registered engineer. Keep this with the property documents, particularly if you later sell or let the home.

The gas safety record is not the same as an annual landlord gas safety record. It relates to the installation and commissioning of the new boiler. If the property is rented, a separate landlord gas safety check may still be required at the appropriate time.

Oil installations come with the equivalent commissioning information for the oil-fired appliance. We record the burner setup, combustion results and safety checks, along with relevant details of the flue and oil supply. OFTEC registration covers the work on an oil-fired heating system and provides the appropriate route for installation and compliance records.

This information is particularly useful on an older or off-gas-grid property. Future servicing may involve the boiler, burner, oil line, tank and flue as one heating system, so keeping the original commissioning record helps establish how the installation was set up.

LPG installations include the appliance commissioning paperwork and the relevant gas safety records. The documents show that the engineer checked the LPG supply, appliance operation, flue and safety controls. Keep them with any information supplied for the LPG tank or cylinders, so future servicing can take account of the complete fuel system.

Building regulations records may be included where the boiler installation falls within a notifiable type of work. We tell you which notification applies to the installation. The final certificate is separate from the boiler manufacturer’s warranty and should be retained with the property paperwork.

Warranty information normally identifies the appliance, the warranty period and the conditions that apply. We provide the manufacturer’s warranty details and the information needed to register the boiler where registration is required. Some warranty terms depend on correct commissioning and regular servicing, so the commissioning record and service history should be kept together.

The warranty does not replace the installation records. If a fault develops, the appliance details, commissioning results and installation date help establish what was fitted and what checks were completed. Keep the invoice or quotation as well, since it can help confirm the scope of the original work.

Operating instructions explain the boiler, programmer, thermostat and any other controls fitted during the work. We talk through the normal controls before leaving and provide the manuals for the equipment installed. If we change the heating controls, the control instructions form part of the useful handover information.

Your documents may also refer to other work completed at the same time, such as a new thermostat, pump, cylinder, radiator valves or electrical supply. Those records help distinguish a boiler fault from a problem elsewhere in the heating system.

Before filing the paperwork, check that the appliance model and serial number match the boiler in the home. Check that the installation address is correct and that the controls and fuel type are recorded accurately. If anything is unclear, ask us to explain it while the installation details are still fresh.

Store the paperwork where the next engineer can find it. A digital copy is useful, but retain the original certificates and warranty information where supplied. For a rented property, give the relevant records to the landlord or managing agent. For a sale, the commissioning and compliance documents can be passed to the buyer with the other heating records.