Energy Efficiency For Domestic Heating A prior home study pack, concludes with the opportunity to undertake the City & Guilds 6084 assessment. The assessment will be conducted in accordance with the City & Guilds requirements, and your papers will be electronically marked by City & Guilds. Course Content: During the assessment you will need to use information contained in the Energy Efficiency Best Practice in Housing home study pack. Please study these documents before attending and bring them to the workshop. Duration: Home study pack plus 1 hour assessment Cost: £130.00 inclusive of manuals and certification