The purpose of this Standard is to provide a method for measuring annual fireplace efficiency.
This Standard applies to vented gas fireplaces approved to CSA Standard ANSI Z21.50/CSA 2.22 and to vented gas fireplace heaters approved to CSA Standard ANSI Z21.88/CSA 2.33 that use natural gas or propane.
This Standard includes
(a) a test method for cyclic and part load performance;
(b) methods for interpolating and extrapolating test data; and
(c) calculation procedures for establishing seasonal performance.
This Standard is written in yard/pound units.