The following rules are used to benchmark whether a QA audit is required on a specific report.


1

No main heating system present, but mains gas supply present


3

Ground floor of main building room height is < 1.5m or > 4m

4

No heating controls present, but main heating system is a gas (incl. LPG) or oil Boiler

5

Age band A with cavity walls

6

Heating controls of Boiler Energy Manager

7

Gas boiler main heating system and hot water from electric immersion

8

Mechanical ventilation present in property built prior to 2003


10

No access to cylinder

11

Main building age band is K or L

12

Any building part with floor or wall insulation type as “Unknown”