rayw1983
rayw1983 OP t1_j9se9ki wrote
Reply to comment by iopturbo in Need advice about bathroom ducting options when changing out the fan by rayw1983
Bathroom is located in a corner on the main level of a two level house. It has close access to 2 exterior walls that could potentially be vented through. That would be a good option and I would just not use the existing ducting.
I’m in the Pacific Northwest, in Vancouver.
It’s a Panasonic one with options for 50-80-100 cfm. Bathroom isn’t very big, about 50 sq. Ft.
rayw1983 OP t1_j9sdm3s wrote
Reply to comment by dominus_aranearum in Need advice about bathroom ducting options when changing out the fan by rayw1983
Oh really? I’ll take a look online for some that fit my current ducting. So the adapter I put on it is not meant for this type of application?
Would you know the concern for reducing the size of the duct?
The odd thing is that some of these exhaust fans come with the adapter.
rayw1983 OP t1_j9sdd9k wrote
Reply to comment by Diligent_Nature in Need advice about bathroom ducting options when changing out the fan by rayw1983
Good idea I’ll go take a look tomorrow, lots of trees around and my gutters are always full of them, thanks!
rayw1983 OP t1_j9sd7zp wrote
Reply to comment by aircooledJenkins in Need advice about bathroom ducting options when changing out the fan by rayw1983
My fan does claim to move 50-100, it’s a Panasonic one with options for 50-80-100.
If a 4” duct is good for moving up to 35 then should I just set it to 50cfm? Why would it have the option to go all the way to 100? Marketing to make it sound good?
If someone wanted to upgrade the size of the duct in my situation with no attic access, is the only option to open up walls?
rayw1983 OP t1_j9scrhw wrote
Reply to comment by jetty_junkie in Need advice about bathroom ducting options when changing out the fan by rayw1983
Thanks for your response, makes me feel better that some back pressure is expected.
I’ve done my bathrooms upstairs which was fairly easy but this time unfortunately it’s the downstairs bathroom. It does vent up through the roof so I unless I open up walls I guess this will have to do.
rayw1983 OP t1_j9sfb08 wrote
Reply to comment by dominus_aranearum in Need advice about bathroom ducting options when changing out the fan by rayw1983
The fan output is 4”, I wish I had the opposite problem but it does seem to be a 4” to 3” reducer. Here’s the official Panasonic one;
https://na.panasonic.com/ca/home-building-solutions/ventilation-indoor-air-quality/ventilation-accessories/4-oval-3-round-duct-adapter-whispervaluetm-fan-and-fanlight-combinations
It does have adjustable settings so I’ve set it to 50cfm but has options for 80 and 100. Honestly even on the 50 setting the noise level seems almost the same as the other settings.