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Planning to install a Pro range hood (CMF 1000) to an outside wall with horizontal venting. What are the pro’s & con’s on integral and remote venting units.
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Planning to install a Pro range hood (CMF 1000) to an outside wall with horizontal venting. What are the pro's & con's on integral and remote venting units.
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Just a couple of issues...
Noise. Remotes, typically, are quieter. I've got a 1200 CFM unit in my own house, and it is a little noisier than remote units.
Grease. Integral squirrel cage fans spin the grease out of the exhaust before sending the evacuated air through the ductwork. Remote units pull the grease-laden air through the ductwork. Some does condense out in the duct.
Fire. Fire won't make it past the squirrel cage fan unit of an integral system. Fire could be pulled into the ductwork of the remote unit, not good, especially if there is any grease in there.
Duct integrity. Remote units create a lower pressure in the ductwork as they pull the air through it. Integral units increase the pressure inside the ductwork as they push the air through it. Make sure the ductwork is properly sealed, as greasy (or moisture-laden) air, theoretically, could be pumped into your joist bays if the duct isn't properly sealed.
I'm probably in the minority, but I do prefer the integral unit. There was a thread on this several months ago. Check the archives for more info.