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Old 01-09-2011, 09:20 PM   #1
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Will this Shower/bath exhaust fan work?


I have a bathroom(10ft x 11ft x 8ft height) I am looking at the Panasonic FV-08VKML2. It has a motion sensor that cycles the fan at 80 cfm for up to an hour. This is in addition to the continuous flow cycle. I know by standard calculations I need a 110 cfm fan for this square feet. I have a toilet(non-enclosed), a shower, and a jetted-tub( used extremely rarely- couple of times a year). By traditional calculations, one might propose needing a 200 cfm unit.
Is it possibly conceivable that a Panasonic FV-08VKML2 with 80 cfm during active use of shower or toilet and 60 minutes thereafter, and then running a constant 20 cfm, would be large enough. (remember I really dont use the jetted-tub). If this unit is unacceptable, what are my options.( I definitely want something that will automatically turn on and run for a programable time thereafter.)( A fan that is triggered on by a humidistat will not cover ventilation when using toilet only, that is why I like the Panasonic FV-08VKML2).

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Old 01-10-2011, 05:44 AM   #2
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Will this Shower/bath exhaust fan work?


I thin code requires 25 CFM constant if the fan doesn't meet min during use.

You could get a motion detector switch and install it in the wall. And set it for what ever amount of time you want/need.

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Old 01-10-2011, 11:50 AM   #3
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Will this Shower/bath exhaust fan work?


The Panasonic model I mentioned has a motion sensor detector to give a cycle of 80 cfm for up to 60 minute in addition to the constant airflow of 20-70 cfm. The motion sensor would be position such that it would be triggered whenever anyone uses the toilet or shower. Which 'code' are you referring to?
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Old 01-10-2011, 06:31 PM   #4
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Will this Shower/bath exhaust fan work?


IMC.

International Mechanical Code.
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