To receive the full benefits of an extended guarantee and up to seven years warranty on a Vaillant boiler installation, the following terms and conditions must be adhered to:

• The Benchmark log book must be completed by the installer at point of installation and retained on site by the owner/occupier for inspection during an engineer visit.

• The boiler must be serviced annually by a registered Gas Safe Engineer in accordance with the manufacturer’s instructions.

• Service details must be recorded in the Benchmark logbook which must be available for inspection.

• The cost of the annual service is not included in the guarantee.

• Only boiler component failures are covered by the guarantee.

• If any failure is caused by contaminated water in the system, the engineer visit becomes chargeable.

• The extended guarantee applies to the boiler only, it does not apply to other system components e.g. thermostats, time clocks, motorised valves etc.

• All installation, non boiler or external system fault calls will be charged to the home owner/occupier and could also invalidate your guarantee.

• For calls requested to boilers within the guarantee period a refundable deposit may be required; returned in full if the diagnosed fault is covered by the boiler guarantee.

• The guarantee must be registered within 30 days of installation.

• Vaillant Group reserves the right to change these Terms & Conditions at anytime and its decision regarding guarantee claims is final.