Specifications

Series 100 Flame Guard® Water Heaters

Spills of gasoline, or the presence of other ammable

vapors, near a standard gas water heater can be very

dangerous. The American Naonal Standards Instute

(ANSI) now requires all residenal water heaters to be

ammable vapor ignion resistant (FVIR). All American

Flame Guard® Water Heaters are fully compliant with

ANSI FVIR standards.

Series 100 Flame Guard® water heaters have a sealed

combuson chamber. Combuson air and ammable

vapors can only enter through a specially designed ame

trap. The ame trap is located in the boom of the

combuson chamber under the main burner and pilot

ame. If ammable vapors are present, the pilot or main

burner immediately ignites them inside the combuson

chamber. The vapors burn on top of the ame trap and

are prevented from escaping back into the room. When

the vapors become too rich or too lean to burn, they

snu themselves out.

A second part of the ANSI Standard concerns resistance

to lint, dust, and other debris build-up on the ame trap.

If the ame trap were to become clogged, combuson air

would be reduced starving the burner of oxygen. This

may increase the amount of carbon monoxide and create

a health hazard. Flame Guard® water heaters are

designed to reduce lint build-up. The small pressure wave

created by lighng the burner during normal operaon

helps blow accumulated lint o the ame trap. If lint does

build up, the thermal cuto switch will shut down the

heater, so the ame trap and the lter may be cleaned.

Gas Water Heater Operation