Energy

PAS 42:2002 Method of test for establishing the efficiency of decorative fuel effect gas fires PAS 42:2002
Method of test for establishing the efficiency of decorative fuel effect gas fires

 

 

PAS 33:1999 Specification for the design, installation and commissioning of gas fired central heating systems in domestic premisesPAS 33:1999
Specification for the design, installation and commissioning of gas fired central heating systems in domestic premises

 

 


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