When installing a cooktop is it necessary to also install a range hood?

Answer: Not often
Explanation: It is preference of the Homeowner.

Answer: Usually
Explanation: Usually customers prefer to have a hood over their cooktop to prevent the odor and steam from spreading among the kitchen

Answer: Not often
Explanation: If the one you habe works then you dont need a new one

Answer: Always
Explanation: exhausting heat from the cooking area helps minimize room temperature.

Answer: Not often
Explanation: Depends on the install

Answer: Not often
Explanation: Depending on where cooktop is located.

Answer: Usually
Explanation: Depends on codes