www.pmmag.com/articles/88742-rheem-pocket-size-reference-manual
Rheem Pocket-Size Reference Manual
August 1, 2003

Rheem Water Heaters has introduced its pocket-sized Rheem Guardian System[tm] Guide Book, a 32-page reference manual for its new Guardian System, designed to meet the new ANSI Standard governing flammable vapor ignition resistant (FVIR) water heaters.
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