What is the purpose of the heat exchanger?
A) To separate the combustion gas from the circulating air while transferring heat from the circulating air to the combustion gas
B) To exchange the combustion gas for the circulating air in order to transfer heat into the house
C) To mix the combustion gas and the circulating air to transfer heat from the combustion gas to the house
D) To separate the combustion gas from the circulating air while transferring heat from the combustion gas to the circulating air
D
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Fill in the blank(s) with the appropriate word(s).
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Indicate whether the statement is true or false
Kenaf is a perennial plant
Indicate whether the statement is true or false
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What will be an ideal response?