Preface 

This is the first edition of CSA/ANSI 13.1, Combined heat and power appliances. This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard. CSA Group acknowledges that the development of this Standard was made possible, in part, by the financial support of Standards Council of Canada. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. This Standard has been approved by the American National Standards Institute (ANSI) as an American National Standard. 

Scope 

1.1 Inclusions 

1.1.1 This Standard applies to appliances and self-contained packaged systems a) manufactured after the date of publication of this Standard; and b) that use gaseous or liquid fuels. 

1.1.2 This Standard specifies requirements and test methods for the following devices within the field of cogeneration technologies that produce both electricity and thermal energy, including but not limited to, 

a) combined heat and power (CHP) appliances, which generate electricity and thermal energy in a single integrated system: 

   i) internal combustion CHP; 

   ii) thermoelectric generators (TEG); 

   iii) vapour expansion cycle CHP; 

   iv) fuel cell CHP; 

   v) exhaust heat reclaimers; and 

   vi) stirling engine CHP; and 

b) thermoelectric generators (TEG), which convert heat into electrical energy. 

1.2 Ratings This Standard applies to newly produced combined heat and power appliances with a maximum net electrical power output of 50kW. These requirements apply to TEGs operating at inlet gas pressures not exceeding 250 psig (1720 kPa). These requirements apply to TEGs operating at gas input rates of 100 000 Btu/h or less. These requirements apply to fixed fuel piping systems. These requirements apply to indoor and outdoor installations. For any other ratings, see the applicable appliance standards used in conjunction with this Standard. 

1.3 Exclusions This Standard does not apply to fuel storage systems. 

1.4 Terminology In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application. 

1.5 Units of measure The values given in customary units are the units of record for the purposes of this Standard. The values given in SI units in parentheses are for information and comparison only.