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The plastic dampers that come with ceiling mounted bath fans or those on Fantech fans just do not prevent air backflow well enough to tie multiple fans together. Base on my air flow measurements the ALDES dampers has reduced the airflow only about 10%. One last recommendation is DO NOT vent bathroom vents through a soffit.
Most places don't require rigid ductwork. it also appears that 2014 NY code doesn't either. 603.6.1 Air Ducts. Air ducts shall be permitted to be rigid or flexible and shall be constructed of materials that are reinforced and sealed to satisfy the requirements for the use of the air duct system, such as the supply air system, the return or exhaust air system, and the variable volume/pressure ...
R303.5.2 Exhaust openings. Exhaust air shall not be directed onto walkways. R303.6 Outside opening protection. Air exhaust and intake openings that terminate outdoors shall be protected with corrosion-resistant screens, louvers or grilles having a minimum opening size of 1/4 inch (6 mm) and a maximum opening size of 1/2 inch (13 mm), in any ...
To be honest, these both look like pictures of already installed, rather old fans, and neither looks to be an in-store display. Also, I'm quite surprised that the newer fan has the 2-blade, NEMA style plug, as that strikes me as being "older" and more likely to come loose under the vibration of the fan motor.
I have installed a Panasonic bathroom fan in my bathroom not too long ago (9/20/20. It ramps up quickly and is silent (CFM 110). No special trick or tools required just replaced the entire fixture with the new. On the other bathroom I used a Hampton model which does what your Panasonic does and it is frustrating.
Thanks for the reply. I'm not sure if the black pipe or the insulated one goes to the leaky bathroom fan. They both go into the area of the leaky fan. So, above the bathroom is a decorative gap before the roof. So, to figure out which of these pipes go to the fan, I'd have to cut into it, through the vapour barrier, and drywall.
In general for a bathroom, you'll be looking to have an Air Change per Hour (ACH) of 8. To accomplish this, you'll have to select a fan based on the size of the bathroom, and the equivalent duct length. Bath room size. The first thing you'll have to figure, is the size of the bathroom. For this, simply multiply Length (ft.) * Width (ft ...
I just moved into my first home, and the bathroom fan is 100% ineffective. I can hear the motor run when I turn it on, and I remember going into the attic with the home inspector and tracing a flexible duct from the fan fixture out to a port on the side of the house.
I've got my exhaust fan installed in the ceiling of the bathroom, now I'm wonder how best to seal the gap around it. The fan housing is obviously sheet metal, and the ceiling has the plastic vapor barrier on top of the drywall.
Bathroom vent fans must be vented to the out of doors. Venting this fan into the attic is simply asking for problems. The excessive moisture will cause condensation on the roof members, insulation and eventually cause mold. It is never OK to vent directly into an attic even if the attic itself is vented. So, the simple correct answer is NO.