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RE: Modern-Aire Vent Hoods? (Follow-Up #17)

posted by: clinresga on 05.06.2009 at 09:50 pm in Appliances Forum

erikanh: that's the first picture of your hood/range I have seen, and it rocks! Totally different look than our kitchen but I love it. The way you've assembled the critical elements of cooking into a compact, incredibly efficient layout is fabulous. It makes me want to drop everything and start cooking right now. And, of course, the hood is gorgeous. Great job.

rgjem: you are asking the right questions. Clearly if you are ducting straight out the wall, with only a very short run of duct, there is little advantage of an external blower, as the distance is too short to give you the noise reduction you'd want from an external blower.

The alternative is to run duct all the way up to the attic and roof. That's what we did. That allowed us to use a Fantech inline blower and silencer, and the result is an unbelievably quiet hood. I am totally ecstatic with it, but others might not find it quite as ideal. The duct installation was a nightmare, involving many hours of HVAC consultation. The performance of the blower is reduced by the long duct run, though the layout of our range (which is in an entirely enclosed alcove, which greatly enhances hood performance) compensates totally: I can sear at max temp and have not a wisp of smoke escape.

For me it was a no brainer but many others, who would prioritize cost, and maximum cfm performance, would choose otherwise.

I am going to take the liberty of quoting a recent email from Jeff Herman at Modern Aire which I think is the clearest explanation of the pros and cons of internal vs external vs inline blowers (Jeff was aware I might do this). It was directed at another potential customer who had corresponded with me, thus the reference to my (Mark's) hood:

Our hoods are supplied for use with our internal motors 600 2400cfm, Abakka exterior blowers 1000 and 1400cfm, and Fan-Tech inline blowers so switching for the fan is not a problem. If you are planning on using the Fan-Tech inline I highly recommend using the silencer. It makes a very dramatic difference in regards to air and motor noise at higher speeds. The Abakka exterior blower is the quietest option we have going right now, but the performance is not as good as the inline IMO. If pure performance is the most important then our internal blowers are the best way to go, they are louder in comparison to Marks set up, but are moving more air then the inline or exterior blowers at 1200CFM. Our internal blowers compensate for higher static pressure loads and do not slow down when connected to ducting making them a great choice for super long duct runs or duct runs with many turns or transitions"

HTH

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clipped on: 06.03.2012 at 09:13 am    last updated on: 06.03.2012 at 09:13 am