Why is silica control important in boiler water?

Why is silica control important in boiler water?

• A. Silica is inert and does not affect heat transfer.
• B. Silica deposits only in makeup water and does not affect heat transfer.
• C. Silica tends to deposit at high temperatures on heat transfer surfaces; controlling silica prevents fouling and heat transfer loss.
• D. Silica controls the boiler's water chemistry independently of heat transfer.

Answer: (C)