Season 12 Episodes13
Cast1

Lynne Adams
Narrator (voice)
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Ranked #1 of 13 in Season 12•+0.7 vs season avg
Precisely machined passages, valves and floats are assembled into carburetors, compressors and heat-exchange components are installed in air-conditioning systems, and harvested sugar crops are processed and refined into crystalline sugar.

Lynne Adams
Narrator (voice)
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"Carburetors, Air Conditioners, Sugar" is episode 4 of How It's Made season 12. It scored 8.2/10 from 25 votes, ranking #1 of 13 episodes this season (season average 7.5). It aired on January 28, 2009.