natural gas pot furnace is not considered special equipment

Glossary - U.S. Energy Information Administration (EIA)

The walls may separate air-conditioned areas from areas not air-conditioned. Warm-air furnace: See Furnace. Warranty contracts: Gas purchase agreements for the sale of natural gas by a producer to a pipeline company wherein the producer warrants it will have available sufficient gas supplies to meet its commitments over the life of the contract ...

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