This Standard applies to newly produced unvented catalytic room heaters (see Part IV, Definitions), hereinafter referred to as heaters, constructed entirely of new, unused parts and materials, having input ratings up to and including 40,000 Btu per hour (11 723 W) for use with liquefied petroleum (LP) gases.
The construction of unvented catalytic room heaters for use with LP gases is covered under Part I.
The performance of unvented catalytic room heaters for use with LP gases is covered under Part II.
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.
All references to psi throughout this standard are to be considered gage pressure unless otherwise specified.
Exhibit C contains a list of standards specifically referenced in this standard, and sources from which these reference standards may be obtained.
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ANSI Z21.76b-1997 (R2012) - Addenda 2 to ANSI Z21.76-1994, Gas-Fired Unvented Catalytic Room Heaters for Use With Liquefied Petroleum (LP) Gases
ANSI Z21.76a-1996 (R2012) - Addenda 1 to ANSI Z21.76-1994, Gas-Fired Unvented Catalytic Room Heaters for Use With Liquefied Petroleum (LP) Gases