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07-06-2019, 07:08 AM
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#1
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Senior Member
Join Date: Jun 2016
Posts: 139
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Bathroom Fan - When to run?
Maybe a dumb question but here goes...
Do you run your bathroom fan all the time or just when you are actually in the bathroom?
Why?
Does anyone do this in effort to avoid over-sensitive LP alarming?
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Charleston, SC
2016 Silverado 1500 LTZ
2016 Wildwood 27RKSS
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07-06-2019, 07:14 AM
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#2
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"On the road again"
Join Date: Feb 2012
Location: Parker County Texas
Posts: 1,152
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We generally ONLY run ours while we are showering - to remove the moisture from the room. As soon as we get out of the shower and dry off as we leave the bathroom, we turn the vent fan off.
Running it all time (especially here in Texas with our heat) would basically defeat the air conditioners by pulling all the cold air out, probably faster than the A/C units can put it in.
You especially don't want to have that vent fan running when you flush the toilet - otherwise it will pull the black-tank smells into the trailer.
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Robert & Estha Shiflet
Georgetown XL 378TS
Jeep Gladiator Willys Tow Vehicle
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07-06-2019, 07:26 AM
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#3
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Canadian Member
Join Date: Feb 2012
Location: Eastern GTA, Ontario, Canada
Posts: 6,238
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We run ours all the time except:
1) when flushing the toilet
2) when the AC is on
When taking a shower its always on, AC running or not. The Maxxair fan in the bathroom moves a lot of air if you have the windows open in another room. From our hybrid TT days we’ve found that moving air in a camper is important to control condensation.
We never boondock so those who do may be concerned about using up battery capacity.
__________________
2023 Rockwood Signature 8262RBS
2016 Ford F-250 XLT SuperCrew, 6.2L, 4x4, 6'9" bed
2019 Rockwood Signature 8290BS (2019 - 2022)
2011 Rockwood Signature 8293SS (2015 - 2018)
2010 Rockwood Roo 23SS (2012 - 2014)
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07-06-2019, 08:26 AM
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#4
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Senior Member
Join Date: May 2015
Posts: 1,397
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Only run it when DW uses the toilet. I don't need it because my stuff doesn't stink.
__________________
--2005 F350 Superduty Crewcab, 6.0, 4wd, short bed, 3.73 gears;
--2016 Montana 3711FL, 40'
--2014 Wildcat 327CK, 38' SOLD
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07-06-2019, 09:04 AM
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#5
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Senior Member
Join Date: Jul 2015
Posts: 7,053
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I don't run my bathroom fan all of the time, but I always run it when the shower is being used, and for a while afterwards to evacuate as much moisture from the camper as possible. On the rare occasion that I am cooking inside, I will open the roof vent closest to the kitchen and run the bathroom fan. I will usually leave it running on its lowest setting at night while we are sleeping because if one of the dogs fart, and it is not running, the LP detector will go off. I forgot to do this last night and was awoken at 2:34 this morning. I reset the LP detector, turned the fan on and went back to bed — no more alarms sounding. The fan is also running whenever somebody is taking a dump and it usually ends-up being left on because somebody forgot to turn it off. It seems to be my job to monitor this and turn it off when it is left on by mistake.
When the fan is left on, there is a very noticeable difference in how well the air conditioning and heating is doing its job, especially when the fan is sucking air out at its top speed.
Many people warn you not to flush the toilet with the fan running, but I have never noticed an odor problem doing this because it must get sucked out faster than it can linger with my fan.
Bruce
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2016 Rockwood Windjammer 3029W Diamond Edition
2015 Chevy 3500HD LTZ 6.0 Crew Cab 4x4 Long Bed 4.10:1 SRW
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07-06-2019, 02:33 PM
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#6
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Camping with Labs
Join Date: Jan 2019
Location: Jarrettsville, MD
Posts: 264
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If the A/C or heat is on, we typically run the bathroom (MaxxAir Ventilation) fan during showers or AFTER the toilet is flushed to clear any odors from the room without drawing them from the black water tank. On occasion, we do run the fan briefly to eliminate false alarms (e.g., while cooking, if the meal of the moment is causing the smoke detector to sound). If neither the heat nor the A/C is on, we sometimes run the fan for a short while just to bring fresh air into the TT.
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Chris, Paula, & camping Labs, Shasta (RIP 8/10/20) & Cammie
2005 Yukon XL 2500 with 8.1 Engine, Allison Transmission, and 3.73 Axle Ratio
2019 Rockwood Signature 8335BSS with Hensley Arrow Hitch
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07-06-2019, 02:35 PM
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#7
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Site Team
Join Date: Jan 2007
Location: Goodyear, Arizona
Posts: 33,839
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Only when showering.
__________________
Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity
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07-06-2019, 02:37 PM
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#8
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Senior Member
Join Date: Jul 2017
Posts: 4,056
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I run it when i need it . either to exhaust a stink bomb or to draw in cooler air from outside . when i don't need it i don't run it
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07-06-2019, 07:53 PM
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#9
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Senior Member
Join Date: Jun 2018
Posts: 446
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__________________
2018 Rockwood Signature Ultra Lite 8311WS
2014 Coachmen Apex 215RBK
2018 GMC Sierra 2500HD SLT Duramax
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07-06-2019, 07:54 PM
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#10
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Senior Member
Join Date: Jul 2017
Posts: 147
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Quote:
Originally Posted by phillyg
Only run it when DW uses the toilet. I don't need it because my stuff doesn't stink.
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WOW didn't know there was someone as perfect as me!
Ha Ha just kidding everyone.
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07-06-2019, 10:05 PM
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#11
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Member
Join Date: Sep 2018
Location: North West PA
Posts: 49
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Quote:
Originally Posted by MR.M
I run it when i need it . either to exhaust a stink bomb or to draw in cooler air from outside . when i don't need it i don't run it
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+1
__________________
2017 Crusader Lite 29RS 5er 2018 Silverado 1500 5.3
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07-06-2019, 10:45 PM
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#12
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Senior Member
Join Date: Nov 2015
Posts: 840
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JDKbrooks - you mean "as perfect as I." You are clearly not perfect since your English grammar would have failed grade school.
Sadly, this happens all the time on broadcast news outlets, even when none of them are discussing the potential explosive capability of my farts when I am in my RV trailer bathroom without the fan running.
Run that fan and save the earth!!
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07-06-2019, 11:38 PM
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#13
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Senior Member
Join Date: Jul 2017
Location: California
Posts: 7,616
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I run it during bathroom use, after showers and when I need to draw cool air in. Sometimes, its on for many hours.
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07-06-2019, 11:43 PM
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#14
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Senior Member
Join Date: Sep 2011
Location: Langley, BC
Posts: 903
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We always run our bath fan all night long. But we have a variable speed Maxxair fan and have it on low (which is quiet too). We also crack open a bedroom window and that way we get fresh cool air drawn in all night. We sleep much better than at home this way!
We also have a Maxxair fan in the bedroom. Sometimes we'll run both on medium to high during the day when it's warm out. We don't use the bedroom fan at night because the fan and window are in close proximity.
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Gil & Deb & Dougal the Springer Spaniel
Langley, BC
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07-06-2019, 11:51 PM
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#15
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Junior Member
Join Date: May 2019
Location: Lake City, FL
Posts: 20
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That last one is good to know. I hadn’t thought about that.
Quote:
Originally Posted by rjshiflet
We generally ONLY run ours while we are showering - to remove the moisture from the room. As soon as we get out of the shower and dry off as we leave the bathroom, we turn the vent fan off.
Running it all time (especially here in Texas with our heat) would basically defeat the air conditioners by pulling all the cold air out, probably faster than the A/C units can put it in.
You especially don't want to have that vent fan running when you flush the toilet - otherwise it will pull the black-tank smells into the trailer.
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07-07-2019, 07:25 AM
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#16
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Senior Member
Join Date: Jun 2016
Location: Maurice, LA
Posts: 4,095
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Quote:
Originally Posted by rjshiflet
We generally ONLY run ours while we are showering - to remove the moisture from the room. As soon as we get out of the shower and dry off as we leave the bathroom, we turn the vent fan off.
Running it all time (especially here in Texas with our heat) would basically defeat the air conditioners by pulling all the cold air out, probably faster than the A/C units can put it in.
You especially don't want to have that vent fan running when you flush the toilet - otherwise it will pull the black-tank smells into the trailer.
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We pretty much do the same for the same reasons with one exception, after a stinky flush we run the fan for a few minutes just to "clear the air" then turn it off again.
We also do not leave the vent open even though we have a cover but open it prior to turning on the fan.
I put a remote switch so we can turn the fan on and off by the lavatory, but I wish I could get a vent that was electric so we could remotely operate that too.
__________________
2012 Wildcat Sterling 32RL, Gladiator Qr35 ST235/85R16 Load rating G, TST 507 TPMS w/ Flow-thru Sensors & Repeater, Reese Sidewinder 16K Pin Box, PI EMS HW50C
2009 Chevy Silverado 2500HD CCSB LTZ Diesel, Fumoto Oil Drain Valve, Turbo Brake activated, 39 gal Aux Tank W/ Fuel Pump transfer, Air Lift Loadlifter 5000 air bags.
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07-07-2019, 09:06 AM
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#17
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Recently new!
Join Date: Dec 2014
Location: Arizona, in The Land of Scorch!
Posts: 1,206
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Use fan only as needed. In my rig, I have never noticed smells coming up from the toilet while flushing. (Maybe the tank smells better that why I have to flush...LOL) The valve is not open long at all. Step, flush, shut, refill.....repeat?
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1987 Starcraft Nova tent trailer, purch. '87, sold 8.14
2013 Crusader 290RLT bought new, 8.14 lotsa mods!
2001 Ford F-250 7.3
Loving wife, R.I.P., 6/6/19
and Mason the always dirty dog! R.I.P, 2/19
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07-07-2019, 09:21 AM
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#18
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Senior Member
Join Date: Jul 2012
Location: SE Arizona's Gila Vally
Posts: 1,511
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I run it now.
I run it then.
I also run it now and then.
It's my fan and that I use to remove the stink from the Can.
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2016 RAM 1500 - 2016 Keystone Laredo 265SRK
The road goes on forever and the party never ends.
Illegitimum non carborundum
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07-07-2019, 09:23 AM
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#19
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Recently new!
Join Date: Dec 2014
Location: Arizona, in The Land of Scorch!
Posts: 1,206
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Good one....LOL
__________________
1987 Starcraft Nova tent trailer, purch. '87, sold 8.14
2013 Crusader 290RLT bought new, 8.14 lotsa mods!
2001 Ford F-250 7.3
Loving wife, R.I.P., 6/6/19
and Mason the always dirty dog! R.I.P, 2/19
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07-07-2019, 09:55 AM
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#20
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Senior Member
Join Date: Aug 2017
Posts: 377
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I always know when to turn the bathroom fan on. It's when my DW starts hollering at me from the living room.
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