HTHW generators differ from water-tube boilers in what way?

HTHW generators differ from water-tube boilers in what way?

• A. They have a steam drum
• B. They require no fuel
• C. There is no steam drum
• D. They operate at lower pressure

Answer: (C)

HTHW generators are hot-water boilers that heat liquid water to high temperatures but do not produce or separate steam. Because there is no steam being formed, there is no steam drum involved. In contrast, water-tube boilers generate steam inside their tubes and use a steam drum to separate the steam from the water. The lack of a steam drum is the defining difference here. Fuel is still required to heat the water, and operating pressure isn’t a universal distinguishing factor, so those aren’t reliable contrasts.

HTHW generators are hot-water boilers that heat liquid water to high temperatures but do not produce or separate steam. Because there is no steam being formed, there is no steam drum involved. In contrast, water-tube boilers generate steam inside their tubes and use a steam drum to separate the steam from the water. The lack of a steam drum is the defining difference here. Fuel is still required to heat the water, and operating pressure isn’t a universal distinguishing factor, so those aren’t reliable contrasts.