What material is not approved to be used for regulator vent?

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Multiple Choice

What material is not approved to be used for regulator vent?

Explanation:
Regulator vent piping must be metal or another noncombustible material so it can safely carry vented gases away without risk of heat damage or ignition. PVC is not approved because it’s plastic and can soften, warp, or degrade when exposed to the heat and moisture in propane vent gas, potentially leading to leaks or a fire hazard. Copper tubing and steel tubing are metals that withstand the vent conditions, and PVC-coated metal keeps the vent path metal while providing a protective outer layer, which is why those options are acceptable.

Regulator vent piping must be metal or another noncombustible material so it can safely carry vented gases away without risk of heat damage or ignition. PVC is not approved because it’s plastic and can soften, warp, or degrade when exposed to the heat and moisture in propane vent gas, potentially leading to leaks or a fire hazard. Copper tubing and steel tubing are metals that withstand the vent conditions, and PVC-coated metal keeps the vent path metal while providing a protective outer layer, which is why those options are acceptable.

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