Before you start the audit, be aware that there are some default settings but to maximise accuracy, it would be a good idea to gather the following information:
- Paper and pen
- Measuring tape to measure
- The height of each storey
- The estimated total floor area
- The estimated ground floor area
- The estimated living room floor area
- An average home heating bill
- Count the number of double and single glazed windows
- Count the number of regular and energy saving fixed light bulbs (excl table lamps)


