S.R. CEN/TR 1749:2014

Foreword
1 Scope
2 General scheme
3 Supplementary classification scheme for type
  A and type B appliances fitted with particular
  safety devices
4 Supplementary classification scheme for type B
  appliances for use in limited installation conditions
5 Supplementary classification scheme for
  type C appliances for use in limited installation
  conditions - Type C1 appliances utilizing a
  third subscript 'R'
Annex A (normative) - Classification according to the
        mode of evacuation of the products of combustion
Annex B (normative) - Special national appliance classification
        (types) - Germany
Annex C (informative) - Special national appliance classification
        (types) - France
Annex D (normative) - Special national appliance classification
        (types) - Slovenia
Annex E (informative) - Appliance types designed for connection
        to separate chimney products
Bibliography

Provides details of a general scheme for the classification of gas appliances according to the method of supplying combustion air and of evacuating the products of combustion.