ANSI Z21.17-1998 (R2024)/CSA 2.7-M98 (R2024)

Description

Preface This publication represents a basic standard for safe operation, substantial and durable construction, and acceptable performance of vented gas fireplace heaters. It is the result of years of experience in the manufacture, testing, installation, maintenance, inspection and research on vented gas fireplace heaters designed for utilization of gas. There are risks of injury to persons inherent in appliances that, if completely eliminated, would defeat the utility of the appliance. The provisions in this standard are intended to help reduce such risks while retaining the normal operation of the appliance. Nothing in this standard is to be considered in any way as indicating a measure of quality beyond compliance with the provisions it contains. It is designed to allow compliance of vented gas fireplace heaters, the safety construction and performance of which may exceed the various provisions specified herein. In its preparation, recognition has been given to possibilities of improvement through ingenuity of design. As progress takes place, revisions may become necessary. When they are believed desirable, recommendations or suggestions should be forwarded to the Chairman of Accredited Standards Committee Z21/83, 8501 East Pleasant Valley Road, Cleveland, Ohio 44131, or the Chairman of (Interim CSA) Gas Equipment Standards Steering Committee, 178 Rexdale Boulevard, Etobicoke, Ontario, Canada M9W 1R3. Safe and satisfactory operation of vented gas fireplace heaters depends to a great extent upon its proper installation, use and maintenance. It should be installed, as applicable, in accordance with the National Fuel Gas Code, ANSI Z223.1; the Natural Gas Installation Code, CAN/CGA-B149.1; the Propane Installation Code, CAN/CGA-B149.2. Users of this American National Standard/CSA Standard are advised that the devices, products and activities within its scope may be subject to regulation at the Federal, Territorial, Provincial, state or local level. Users are strongly urged to investigate this possibility through appropriate channels. In the event of a conflict with this standard, the Federal, Territorial, Provincial, state or local regulation should be followed. This standard is intended to be used by the manufacturing sector and by those applying the equipment and by those responsible for its proper installation. It is the responsibility of these users to determine that in each case this standard is suitable for and applicable to the specific use they intend. Scope 1.1.1 This standard applies to newly produced domestic gas conversion burners constructed entirely of new, unused parts and materials and having input ratings at normal inlet test pressure of not more than 400,000 Btu per hour (117 228 W): (a) For use with natural gas; (b) For use with manufactured gas; (c) For use with mixed gas; (d) For use with liquefied petroleum gases; and (e) For use with LP gas-air mixtures. The construction of conversion burners for use with the above-mentioned gases is covered under Part I. The performance of conversion burners for use with the above-mentioned gases is covered under Part II. 1.1.2 If a value for measurement as given in this standard is followed by an equivalent value in other units, the first stated value is to be regarded as the specification. 1.1.3 Exhibit A contains provisions that are unique to the United States. 1.1.4 Exhibit B contains provisions that are unique to Canada. 1.1.5 Exhibit C contains a list of standards specifically referenced in this standard, and sources from which these reference standards may be obtained. 1.1.6 All references to “psi” throughout this standard are to be considered gage pressures, unless otherwise specified.