4. Economizer. Originally cast iron to resist conversion from 0. in boiler water. Now low carbon steel with de-aeration of feed- water. 5. Air Heaters. Mostly low carbon steel but low temperature parts may be stainless; ceramic and even glass has been employed. 6.
Read More4. Economizer. Originally cast iron to resist conversion from 0. in boiler water. Now low carbon steel with de-aeration of feed- water. 5. Air Heaters. Mostly low carbon steel but low temperature parts may be stainless; ceramic and even glass has been employed. 6.
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