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This Standard applies to portable type gas water heaters (herein after referred to as appliance or water heater) for use with propane, butane, or liquefied petroleum gases and mixtures thereof having:
a) a regulated pressure;
b) a non-regulated pressure.
Portable type water heaters and components employing materials or having forms of construction differing from those detailed in these provisions may be examined and tested according to the intent of the provisions, and if found to be satisfactorily equivalent, may be given recognition.
This Standard applies to portable water heater constructed entirely of new, unused parts.
All references to psi throughout this Standard are to be considered gauge pressures unless otherwise specified.
All accessories recommended by the manufacturer for use with appliances certified to this Standard are to be supplied and with the appliance.
A portable water heater is:
a) for point of use (dishwashing, washing, showering, etc.) supply of either potable or non-potable hot water;
b) not for permanent connection to inlet or outlet water lines;
c) only intended for use outdoors and no connections may be provided for venting of combustion products via a chimney or vent system.
The water heater may be:
a) tank type;
b) automatic storage type;
c) water-tube type;
d) instantaneous type; or
e) multifunction design such as an instantaneous-tube type (see Clause 3Definitions).
Portable water heaters are limited to a maximum input of 75,000 BTU/hr (21 980 W).
Annex A, Items Unique to the United States, contains provisions that are unique to the United States.
Annex B, Items Unique to Canada, contains provisions that are unique to Canada.
Clause 2, Reference publications, contains a list of standards specifically referenced in this Standard, and sources from which they may be obtained.
This Standard contains SI (Metric) equivalents to the yard/pound quantities, the purpose being to allow the Standard to be used in SI (Metric) units. (IEEE/ASTM SI 10, American National Standard for Metric Practice, or ISO 80000-1:2009, Quantities and units — Part 1: General, is used as a guide in making metric conversion from yard/pound quantities.) If a value for a measurement and a corresponding value in other units are stated, the first stated value is to be regarded as the requirement. The given corresponding value may be approximate. If a value for a measurement and a corresponding value in other units are both specified as a quoted marking requirement, the first stated unit, or both shall be provided.
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.