English, asked by Hast8804, 9 months ago

No. Of people working in the furnace

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Answered by bhoopbhoomi3088
1

Answer:

There are four main types of furnaces: natural gas, oil, electric, and propane. Electric furnaces can heat the air by exposing heated elements, while other types of furnaces typically require a heat exchanger or chamber that warms the surrounding air.

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