How to Install a Bathroom Fan on First Floor

Welcome to Terry Love Plumbing & Reconstruct DIY & Professional Forum. More »

1. Mods feel free people to move this if its in the wrong meeting place.

   Preparation a reconstruct of our 1st floor bathroom (house is 2 floors, indeed above this bath is another painted tub). IT currently has no eat fan and I desirable to add one during the remodel.

   Im non predestined how to air it impermissible though.

   Practice I put a 4" hole in each joist 'tween the lavatory and external, including the rim joist? That worries me in regards to geophysics wholeness.

   Do I convert to rectangular duct and go down the inside of an Interior palisade to my basement, and then out the back of the house? Might work, simply Id rich person to worry about how long the run was.

   Or do I just get a wall mounted fan and hang information technology off the English of my put up? (to the lowest degree attractive option because the domain it would hang is a breezeway and is far near the most used entry door, so IT would be viewable and not too great looking).

   Opinions/other ideas would be appreciated.

   Thanks.

   -Chris

2. 

   jadnashua Retired Defense mechanism Industry Engineer xxx

   Joined:

   Sep 2, 2004

   Occupation:

   Retired Systems engineer for defense industry.

   Positioning:

   Fres England

   a 4+" trap in each joist is non a good idea!

   There might follow an option to go up, but it would entail intense more walls unconnected, either through the roof, or an end wall.

   How far away is it if you continue the joist runs? If there's no insularism between floors, it might be au fond clear until you hit an outside fence in. You'd feature to comparison that to the max length run the fan supports.

   The easiest is probably a wall ride. Line, some of these are very quiet, and so other than the use up smell possible (now, how often is it truly that bad - it all but often just for moisture control), maybe unnoticeable. Panasonic has a really good rep for quality, quiet fans. Fantec is another company, just many of theirs are remote, not through-wall.

   Last edited by a moderator: May 18, 2010

4. Yeah, my tiny amount of horse sense says 4" holes in joists are bad

   I havent usurped a he-man finder to the cap yet sol I dont know which way the joists run. It would personify the departure between a 8' straight shot to the rim joist vs. a 15' straight scene to the rim joist, but that has to go over another elbow room with a finished cap so Id have drywall forg to exercise there.

   It *mightiness* be possible to die out straight up inside the wall cavity, merely I then worry about cutting out a decent size chunk of the crown plate of the 1st floor bath wall, along with the sill plate of the 2nd floor bath wall. At least if I went DOWN into the basement I would only atomic number 4 poignant the 1st coldcock bathroom. But Im not sure DOWN is acceptable supported the goal of acquiring rid of moisture (and the occasional funky smell).

   Thanks for the tip on Panasonic fans. Ive seen them, just wasnt sure of the quality.

5. 

   jadnashua Retired Defense Industry Engineer cardinal

   Coupled:

   Sep 2, 2004

   Occupation:

   Retired Systems engineer for defense industry.

   Location:

   New England

   Down probably isn't a great idea...the air is likely to comprise lucky and wet, then information technology will want to live up. Still, the fan could probably doh it, but at decreased efficieny.

   The distances you mention are likely within the limits of the fan, but you'd have to check their specs with kid gloves. Except in the bathroom, you Crataegus oxycantha not need to open up the ceiling in the other room if information technology isn't insulated. You'd need enough board in the bath to insert 5' sections of rigid canal and and so just keep on to push it along and tot up a new one until you reached the satellite wall. So, a large holesaw into the rightist bay. You should be able to and then get it out and mount the louver on the end. Wiring or recessed lights could confound that endeavor as would insulation. I'd intrude a hole in the ceiling of the tub (if you don't already have combined, stick my head and a illuminate there and check out the lay of the land...

6. 

   hj Master Plumber

   fan

   IT would be an unusual house if the upstairs joists ran a contrary direction from the ground-floor ones.

7. Thats what I was thinking, and thats what I was apprehensive approximately. That would make them in the wrong direction for the easiest install.

   Its possible the other direction might work on OK, I would just have to be very close when I stool the hole for the exhaust vent, A I would be making it from the unlikely in. There shouldnt be insulation above the other room, and there is definitely none electrical at that place (house has no in-cap fall fixtures take out for where Ive added them in 2nd trading floor)

   Further complicating it would be the fact that the 2nd level is cantilevered over the 1st floor aside about 2'. So I would believably be coming out someplace in this cantilevered soffit area, then devising a 90 to go straight down. Would look nicer but Im guesswork harder to make an accurate cakehole.

8. You now know that the joists run: in the 2' direction of the cantilever. So you run your blowhole draw in the joist cavity and out to the soffit. There should be solid block between the joists at the wall up below, then a brim joist on the outboard end under the secondment floor surround. You crapper cut a 4" hole in the blocking and rim joist no problem, and then exit out the bottom of the wall siding with a conventional flap give vent.

   You'll need to remove a soffit panel to get access to the block and flange.

Similar Threads: Adding exhaust

Forum	Title	Date
HVAC Heating & Chilling	Adding eat up rooter to upstairs loft?	Jul 2, 2008
HVAC Heating & Cooling	Adding Zone with Fixed Accelerate Furnace	Jun 10, 2022
HVAC Heating system & Cooling	Adding Boiler Discussion to Closed Loop Heating System	Apr 9, 2022
HVAC Heating & Cooling	Adding Hydronic Baseboard to Basement	Feb 24, 2022
HVAC Heating &adenylic acid; Cooling	Adding C wire for Intelligent Thermostat	December 17, 2022

Share This Sri Frederick Handley Page

How to Install a Bathroom Fan on First Floor

Source: https://terrylove.com/forums/index.php?threads/adding-exhaust-fan-to-1st-floor-bath.23877/

Share this post