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bathroom vent

  1. Ok for a bathroom exhaust duct to go down and then back up?

    HVAC
    I am putting in a very small 1/2 bath in my finished basement. I am trying to figure out the best way to vent and exhaust fan to the outside. Unfortunately, the wall that butts up to the foundation does not have a window and it sits on the opposite side of my patio steps. Of course the joist run...
  2. Exhaust fan ventilation to the outside

    Roofing/Siding
    Hello, I have to connect the ventilation of the exhaust fans of my 3 upstairs bathrooms to the outside and I am getting conflicting advise from 3 different contractors. The issue is that I have no siding in the attic, so the options are either connect the exhaust fans to the soffit or to connect...
  3. Add second bathroom fan vs. install bigger one?

    HVAC
    Hi - first-time poster here. I searched my question and didn't find the topic addressed previously. My bathroom has a 70 CFM fan, but it's 122 cubic feet (10'10" ceilings in a 8.5'x10' room). Is it acceptable to add a second 70 CFM fan, or do we need one 130+ CFM unit? Thanks much!
  4. BR Wiring challenge

    Electrical
    Greetings, All. I'm wiring my bathroom vent, light, and gfci outlet, and would like to get the board's collective wisdom. The power comes into the light. The gfci, light switch, and fan switch also come into the light. My two questions are 1. how do I wire the fan switch -- which is in a...
  5. Bathroom exhaust fan venting direction

    Plumbing
    I am installing an exhaust fan in a 1st floor bathroom and I am trying to decide on the exterior vent to use. Based on where the bathroom is and what it would take to vent through the roof, that route is not feasible due to its location. As a result, I plant to run the 4 in vent pipe parallel in...
  6. bathroom ceiling fan

    Electrical
    I've replaced my old bathroom ceiling/light exhaust fan because in the cold winter climate the moisture from the shower would collect in the duct, condensate, and then when the weather would warm up a little, drip back into the bathroom (sometimes pouring out). The new fan is much stronger, but...
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