The furnace is the only machine that makes Grandma say, “Turn it UP!” instead of “Turn that thing DOWN!”
When the furnace broke, we all wore so many sweaters we looked like a family of walking laundry piles.
Our furnace works so hard in winter that I’m pretty sure it deserves its own snow day.
The furnace worked so well that I forgot it was winter and almost went to school in shorts and flip-flops.
Some furnaces can get hotter than 2,000°F (about 1,093°C), which is warm enough to turn metal into a gloopy, glowing puddle.
Snow pressed against the window. She shivered and opened the basement door to the cold furnace. The furnace blinked weakly; she tapped the furnace gauge and the pilot light steadied. The furnace coughed then roared and warm air came up the stairs. She pressed her hands to her face, grateful as the furnace hummed and the house stopped shivering.
🧑🎓 CEFR Level: C2 Proficient
This word is at the C2 level, which means it represents the highest mastery of English. It’s often used in specialized or highly formal contexts and helps you communicate with precision and subtlety, much like a native speaker.
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