Oil-fired warm air furnaces
This is the fourth edition of CSA B140.4, Oil-fired warm air furnaces . It supersedes the previous editions published in 2004, 1974, and 1971. It is one of a series of oil-burning equipment Standards providing minimum requirements for the safe operation, acceptable performance, design, construction, manufacture, marking, and testing of oil-burning equipment and should be read in conjunction with CSA B140.0, Oil-burning equipment: General requirements. The major changes in this edition include the following
This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard. This Standard was prepared by the Technical Committee on Oil-Burning Appliance Standards, under the jurisdiction of the Strategic Steering Committee on Fuels and Appliances, and has been formally approved by the Technical Committee. 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 applies to complete, vent- (flue-) connected, or direct vent connected oil-fired warm air furnaces and unit heaters, irrespective of the heating capacity or the type of burner used. This Standard also applies to oil-fired condensing warm air furnaces.
This Standard applies to furnaces employing forced circulation of the heated air and furnaces intended to be used with pipes or ducts for the distribution of the heated air for the following
Outdoor installation Requirements for appliances primarily for outdoor installation are specified in Clause 11.
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 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.
The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.
| SDO | CSA: Canadian Standards Association |
| Document Number | |
| Publication Date | Jan. 1, 2022 |
| Language | en - English |
| Page Count | 93 |
| Revision Level | |
| Supercedes | |
| Committee |