Kohlangaz Gosford Installation And Maintenance Instructions Manual page 4

Fire box dimensions (All Models)
Width : (with standard trim)
Height : (with standard trim)
Depth : (overall-without fender)
Gas Connection
Efficiency Declaration
The efficiency of this appliance has been measured as specified in
BS 7977-1 : 2002 and the result is 58%.
The gross calorific value of the fuel has been used for this efficiency
calculation. The test data from which it has been calculated has been certified by
BSI. The efficiency value may be used in the UK Governments Standard
Assessment Procedure (SAP) for energy rating of dwellings.
8mm Compression
4
498mm
600mm
250mm
(Supplied with fire)