12 Jun '11, 5am

Green Building Q&A: Air circulation enhancements for ductless mini-split.

I have a Sips house in rough and I am using two Panasonic Whisper Green fans, one to ventilate the home and the other to circulate the conditioned air from the ductless mini-split in the main living area back into the bedrooms. The fans will run continuous at 50, 70, 90, and 110 cfm and can be turned on high with a separate switch to 130 cfm. The ventilation fan picks up in each of the two bathrooms and the laundry room with adjustable ducts. I plan to ventilate 20 cfm continuous in each bathroom and pick up another 10 cfm from the laundry which will meet my ventilation levels for this 1560 sq ft home. I plan on circulating 20 cfm to each of the smaller bedrooms and 30 cfm to the master bedroom to distribute the heating and cooling from the mini-split. As both fans are adjustable, I can vary the air delivery to some degree. All ducts are in dropped ceilings inside the enve...

Full article: http://www.greenbuildingadvisor.com/community/forum/green...

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