Heat shield or flame rollout shield

Heating · Heat Exchangers · printed page 121 (PDF page 122)

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Flame Rollout Shield Heat Shield or Flame Rollout Shield Gas Burner

Text in the illustration

in forced air gas furnace
watch for scorching of the metal above and around the heat shield - indicating possible flame rollout
make sure that the heat shield is properly secured
heat shield
inspection tip (beyond standards):
remove the heat shield on older furnaces and use a mirror to get a better look at the heat exchanger
gas valve and piping not shown for clarity

Generated explanation

The illustration shows a forced-air gas furnace with an enlarged view of the burner compartment and its heat shield, also called a flame rollout shield. The shield is mounted across the front of a row of gas burners. Dark scorched areas on the metal above and around the shield are identified as evidence of possible flame rollout. An annotation emphasizes that the shield should be properly secured. An inspection tip describes removing the shield on older furnaces and using a mirror to improve the view of the heat exchanger; the gas valve and piping are omitted from the enlarged view for clarity.

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