Article 1 
This Directive, which comes under the SAVE programme concerning the promotion of energy efficiency in the Community, determines the efficiency requirements applicable to new hot-water boilers fired by liquid or gaseous fuels with a rated output of no less than 4 kW and no more than 400 kW, hereinafter called ‘boilers’.
Article 2 
For the purposes of this Directive: — boiler : the combined boiler body-burner unit, designed to transmit to water the heat released from burning, — appliance : — the boiler body designed to have a burner fitted, — the burner designed to be fitted to a boiler body, — the boiler body designed to have a burner fitted, — the burner designed to be fitted to a boiler body, — effective rated output (expressed in kW) : the maximum calorific output laid down and guaranteed by the manufacturer as being deliverable during continuous operation while complying with the useful efficiency indicated by the manufacturer, — useful efficiency (expressed in %) : the ratio between the heat output transmitted to the boiler water and the product of the net calorific value at constant fuel pressure and the consumption expressed as a quantity of fuel per unit time, — part load (expressed in %) : the ratio between the effective output of a boiler operating intermittently or at an output lower than the effective rated output and the same effective rated output;
Article 3 
1. The following shall be excluded from this Directive: — hot-water boilers capable of being fired by different fuels including solid fuels, — equipment for the instantaneous preparation of hot water, — boilers designed to be fired by fuels the properties of which differ appreciably from the properties of the liquid and gaseous fuels commonly marketed (industrial waste gas, biogas, etc), — cookers and appliances designed mainly to heat the premises in which they are installed and, as a subsidiary function, to supply hot water for central heating and sanitary hot water, — appliances with rated outputs of less than 6 kW using gravity circulation and designed solely for the production of stored sanitary hot water, — boilers manufactured on a one-off basis, — cogeneration units as defined in Directive 2004/8/EC of the European Parliament and of the Council of 11 February 2004 on the promotion of cogeneration based on useful heat demand in the internal energy market ( 14 ). 2. In the case of boilers with a dual function, that of heating premises and also providing sanitary hot water, the efficiency requirements referred to in Article 5 (1) concern the heating function only.
Article 4 
1. Member States may not prohibit, restrict or impede the placing on the market or entry into service within their territories of appliances and boilers which comply with the provisions of this Directive and which bear the CE marking provided for in Article 7 attesting to the conformity to all the provisions of this Directive, including the conformity assessment procedures laid down in Articles 7 and 8, save as otherwise laid down in the Treaty or other Directives or Community provisions. 2. Member States shall take all necessary measures to ensure that boilers cannot be put into service unless they satisfy the efficiency requirements set out in Article 5 (1) and the conditions for entry into service which the Member States lay down on the basis of local climatic conditions and the energy and occupancy characteristics of the buildings. 3. However, Member States where back-boilers and/or boilers that are to be installed in the living space, are widely installed at the date of the adoption of the present Directive, shall continue to authorize their entry into service, provided that their efficiency both at rated output and at 30 % part load is not more than 4 % below the requirements laid down in Article 5 (1) for standard boilers. 4. The effects of the provisions in paragraphs 2 and 3 shall be constantly monitored by the Commission and analysed in the report to be submitted under Article 10. To this end the Member States shall forward to the Commission any information it requires to submit to the Council the proposed amendments, provided for in that Article, designed to ensure at all events the energy efficiency and free movement of boilers in the Community. (a) Where the boilers are subject to other Directives concerning other aspects which also provide for the affixing of the CE marking, the latter shall indicate that the boilers in question are also presumed to conform to the provisions of those other Directives. (b) However, where one or more of these Directives allow the manufacturer, during a transitional period, to choose which arrangements to apply, the CE marking shall indicate conformity to the provisions only of those Directives applied by the manufacturer. In this case, particulars of the Directives applied, as published in the Official Journal of the European Communities , must be given in the documents, notices or instructions required by the Directives and accompanying the boilers.
Article 5 
1. Boilers must comply with the following useful efficiency requirements: — at rated output, i.e. operating at rated output Pn expressed in kW, at an average boiler-water temperature of 70 o C , and — a part load, i.e. operating at 30 % part load, at an average boiler-water temperature which varies according to the type of the boiler. The useful efficiency requirements to be complied with are set out in the following table: Type of boiler Range of power output Efficiency at rated output Efficiency at partload kW Average boiler-water temperature (in o C) Efficiency requirement expressed (in %) Average boiler-water temperature (in o C) Efficiency requirement expressed (in %) Standard boilers 4 to 400 70 ≥ 84 + 2 logPn ≥ 50 ≥ 80 + 3 logPn Low-temperature boilers ( 1 ) 4 to 400 70 ≥ 87,5 + 1,5 logPn 40 ≥ 87,5 + 1,5 logPn Gas condensing boilers 4 to 400 70 ≥ 91 + 1 logPn 30 ( 2 ) ≥ 97 + 1 logPn ( 1 ) Including condensing boilers using liquid fuels. ( 2 ) Temperature of boiler water-supply. Type of boiler Range of power output Efficiency at rated output Efficiency at partload Type of boiler Range of power output Efficiency at rated output Efficiency at partload kW Average boiler-water temperature (in o C) Efficiency requirement expressed (in %) Average boiler-water temperature (in o C) Efficiency requirement expressed (in %) Average boiler-water temperature (in o C) Efficiency requirement expressed (in %) Standard boilers 4 to 400 70 ≥ 84 + 2 logPn ≥ 50 ≥ 80 + 3 logPn Standard boilers 4 to 400 ≥ 84 + 2 logPn ≥ 50 ≥ 80 + 3 logPn Low-temperature boilers ( 1 ) 4 to 400 70 ≥ 87,5 + 1,5 logPn 40 ≥ 87,5 + 1,5 logPn Low-temperature boilers ( 1 ) ≥ 87,5 + 1,5 logPn Gas condensing boilers 4 to 400 70 ≥ 91 + 1 logPn 30 ( 2 ) ≥ 97 + 1 logPn Gas condensing boilers ≥ 91 + 1 logPn 30 ( 2 ) ≥ 97 + 1 logPn ( 1 ) Including condensing boilers using liquid fuels. ( 2 ) Temperature of boiler water-supply. ( 1 ) Including condensing boilers using liquid fuels. ( 2 ) Temperature of boiler water-supply. 2. The harmonized standards relating to the requirements of this Directive drawn up under mandate from the Commission in accordance with Directive 83/189/EEC and 88/182/EEC ( 15 ) shall determine, inter alia , the verification methods valid for production and measurements. Appropriate tolerances must be incorporated in the efficiency levels.
Article 7 
1. Member States shall deem that boilers which comply with the harmonized standards, the reference numbers of which have been published in the Official Journal of the European Communities and for which the Member States have published the reference numbers of the national standards transposing those harmonized standards, to be in conformity with the essential efficiency requirements stipulated in Article 5 (1). Such boilers must bear the CE marking referred to in Annex I, section 1, and be accompanied by the EC declaration of conformity. 2. The conformity of series-produced boilers shall be certified by: — examination of the efficiency of a boiler type in accordance with module B as described in Annex III, — a declaration of conformity to the approved type in accordance with module C, D or E as described in Annex IV. For boilers burning gaseous fuels, the procedures for assessing the conformity of their efficiency shall be those used to assess conformity to the safety requirements laid down in Directive 90/396/EEC on the approximation of the laws of the Member States relating to appliances burning gaseous fuels. 3. When appliances marketed separately are placed on the market, they must bear the CE marking and be accompanied by the EC declaration of conformity, which defines the parameters enabling them after assembly to achieve the useful efficiency levels laid down in Article 5 (1). 4. The CE mark of conformity to the requirements of this Directive and to the other provisions concerning the granting of the CE marking, and also the inscriptions specified in Annex I, shall be affixed on boilers in a visible, easily legible and indelible manner. The affixing on such products of any markings likely to deceive third parties as to the meaning and form of the CE marking shall be prohibited. Any other marking may be affixed to the boilers and appliances provided that the visibility and legibility of the CE marking is not thereby reduced. (a) Where a Member State or a notified body establishes that the CE marking has been affixed unduly, the manufacturer or his agent established within the Community shall be obliged to make the boiler comply as regards the provisions concerning the CE marking and to end the infringement under conditions imposed by the Member State; (b) where non-compliance continues, the Member State must take all appropriate measures to restrict or prohibit the placing on the market of the product in question or to ensure that it is withdrawn from the market, and shall inform the Commission and the other Member States accordingly.
Article 8 
1. Member States shall inform the Commission and the other Member States of the bodies which they have appointed to carry out the procedures referred to in Article 7, together with specific tasks which these bodies have been appointed to carry out and the identification numbers assigned to them beforehand by the Commission. The Commission shall publish in the Official Journal of the European Communities a list of the notified bodies with their identication numbers and the tasks for which they have been notified. The Commission shall ensure that this list is kept up to date. 2. Member States shall implement the minimum criteria laid down in Annex V for the appointment of such bodies. Bodies which satisfy the criteria laid down in the corresponding harmonized standards shall be deemed to comply with the criteria laid down in that Annex. 3. A Member State which has notified a particular body must withdraw that notification if it finds that the body concerned no longer satisfies the criteria referred to in paragraph 2. It shall immediately inform the other Member States and the Commission accordingly and shall withdraw the notification.
Article 9 
1. By 1 January 1993, Member States shall adopt and publish the provisions necessary to comply with this Directive. They shall forthwith inform the Commission thereof. They shall apply those provisions from 1 January 1994. When Member States adopt those provisions, they shall contain a reference to this Directive or shall be accompanied by such a reference on the occasion of their official publication. The methods of making such a reference shall be laid down by the Member States. 2. Until 31 December 1997, Member States shall permit the placing on the market and putting into service of appliances complying with the national rules and schemes in force within their territories on the date of the adoption of this Directive.
Article 10 
Three years after the implementation of this Directive the Commission shall submit a report to the European Parliament and to the Council on the results achieved. That report shall be accompanied by proposals for any changes to be made to this Directive in the light of those results and of advances in technology.
Article 10a 
This Directive constitutes an implementing measure within the meaning of Article 15 of Directive 2005/32/EC of the European Parliament and of the Council of 6 July 2005 establishing a framework for the setting of ecodesign requirements for energy-using products ( 16 ), with regard to energy efficiency during use, in accordance with that Directive, and may be amended or repealed in accordance with Article 19(3) of Directive 2005/32/EC .
Article 11 
This Directive is addressed to the Member States.