Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×


Reply
 
Thread Tools Display Modes
 
Old 08-13-2022, 08:31 PM   #1
Mini-Skoolie
 
Join Date: Jan 2022
Posts: 11
Year: 2004
Chassis: 38' CE200
Engine: T444E
Ventless Washer/Dryer and Humidity

I've seen threads regarding the 'wet heat' and humidity of "ventless" hot water heaters running propane.

Do "ventless" clothes dryers actually collect that humidity from the wet clothes and discharge it through the drain, or does it just discharge wet air in the cab?

Anyone have first hand experience with addressing this? Would de-humidifying from a mini split adequately address this?

Pigeoneer is offline   Reply With Quote
Old 08-14-2022, 01:02 AM   #2
Bus Crazy
 
HamSkoolie's Avatar
 
Join Date: Jul 2021
Location: Southern Oregon
Posts: 1,237
Year: 1996
Coachwork: AmTran (Now Navistar)
Engine: DT444E (7.3L) International
Rated Cap: 31,800 pounds
Quote:
Originally Posted by Pigeoneer View Post
I've seen threads regarding the 'wet heat' and humidity of "ventless" hot water heaters running propane.

Do "ventless" clothes dryers actually collect that humidity from the wet clothes and discharge it through the drain, or does it just discharge wet air in the cab?

Anyone have first hand experience with addressing this? Would de-humidifying from a mini split adequately address this?
We'll be watching this thread as we've chosen to go with the vented drier because of the humidity in the bus issue. It would be much simpler to have a non vented washer/drier but we'd rather have to cut the hole than pump humidity in.
So we'll see what those who use them say. Perhaps we can go non vented after all.
__________________
YouTube: HAMSkoolie WEB: HAMSkoolie.com
We've done so much, for so long, with so little, we now do the impossible, overnight, with nothing. US Marines -- 6531, 3521. . . .Ret ASE brakes & elect. Ret (auto and aviation mech). Extra Class HAM, NAUI/PADI OpenWater diver
HamSkoolie is offline   Reply With Quote
Old 08-14-2022, 10:41 AM   #3
Bus Crazy
 
TheHubbardBus's Avatar
 
Join Date: Apr 2019
Location: Earth
Posts: 1,969
Year: 2004
Coachwork: IC
Chassis: CE300
Engine: t444e
Rated Cap: 24
I feel ventless anything to be a bad idea in a bus.
__________________
I've got what plants crave.
TheHubbardBus is offline   Reply With Quote
Old 08-15-2022, 01:25 AM   #4
Bus Crazy
 
HamSkoolie's Avatar
 
Join Date: Jul 2021
Location: Southern Oregon
Posts: 1,237
Year: 1996
Coachwork: AmTran (Now Navistar)
Engine: DT444E (7.3L) International
Rated Cap: 31,800 pounds
Quote:
Originally Posted by TheHubbardBus View Post
I feel ventless anything to be a bad idea in a bus.
That's my thought as well but I'm willing to listen.
Just don't do what I saw the other day.... a couple in a skoolie with their kids. Propane on demand water heater and she says
"our water heater has to be vented so we vented it to this grille at the back of the kitchen counter"
__________________
YouTube: HAMSkoolie WEB: HAMSkoolie.com
We've done so much, for so long, with so little, we now do the impossible, overnight, with nothing. US Marines -- 6531, 3521. . . .Ret ASE brakes & elect. Ret (auto and aviation mech). Extra Class HAM, NAUI/PADI OpenWater diver
HamSkoolie is offline   Reply With Quote
Old 08-15-2022, 05:50 AM   #5
Bus Crazy
 
joeblack5's Avatar
 
Join Date: Dec 2015
Location: pa
Posts: 2,303
Year: 98
Coachwork: 1. Corbeil & 2. Thomas
Chassis: 1 ford 1998 e350 4x4 7.3 2 mercedes 2004
Engine: 7.3 powerstroke & MBE906
At home..Our ventless washer dryer, tromm, condenses the water and pumps it out.. the last part of drying is with assisted heat.

The latest dryers use a dehumidifier to more efficiently remove the moisture. I have seen them in Europe. I would imagine you can find them in the USA.

Johan
joeblack5 is offline   Reply With Quote
Old 08-15-2022, 08:39 AM   #6
Almost There
 
TMartineau's Avatar
 
Join Date: May 2022
Location: Dade City, FL
Posts: 77
Year: 2002
Coachwork: Blue Bird
Chassis: International
Engine: DT466E
Rated Cap: 32' Two peeps and a Dog!
I'm watching this tread too. I plan on a all in one unit in my bus. I am a little concerned about the moisture in the bus. But I'm also worried about fit and placement. How much space is needed behind each type ( vented, not vented)? Being in a wheelchair I need every inch. Thoughts?
__________________
You can't change the cards you were dealt; just the way you play them.- Randy Pausch
TMartineau is offline   Reply With Quote
Old 08-15-2022, 12:13 PM   #7
Skoolie
 
Join Date: Sep 2015
Posts: 212
Year: 1992
Coachwork: Bluebird Mini-Bird 24'
Chassis: Chevy P30
Engine: Chevy 6.2L Diesel
Quote:
Originally Posted by Pigeoneer View Post
I've seen threads regarding the 'wet heat' and humidity of "ventless" hot water heaters running propane.

Do "ventless" clothes dryers actually collect that humidity from the wet clothes and discharge it through the drain, or does it just discharge wet air in the cab?

Anyone have first hand experience with addressing this? Would de-humidifying from a mini split adequately address this?
Just from a basic understanding of physics, if you use, say, a gallon of water to do laundry, and then remove all of that water from the clothes and disperse it into the air as 'added humidity', I cannot see the dehumidifying effect of a typical mini-split being able to handle that kind of humidity (plus whatever is 'normal' for your area) on a regular basis.

To be short, vent your dryer exhaust outside. It's more than just humidity, you would also accumulate a bunch of lint from the clothing which would ultimately amount to a fire hazard at some point.
Albatross is offline   Reply With Quote
Old 08-15-2022, 02:10 PM   #8
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 17,152
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
Quote:
Originally Posted by joeblack5 View Post
At home..Our ventless washer dryer, tromm, condenses the water and pumps it out.. the last part of drying is with assisted heat.

The latest dryers use a dehumidifier to more efficiently remove the moisture. I have seen them in Europe. I would imagine you can find them in the USA.

Johan

they are in the states but usually special order.. I worked on an LG combo machine a couple years ago and it actually has a refrigeration circuit in it like a dehumidifier that condensed out the water to a drain.. there was also a heating element in it.. this particular model was a 240 volt machine as at times it was designed to run some heat along with the compressor.. the machine also did get warm so running it did produce some heat into the house.. the dry cycle took longer than a standard vented dryer but it really did work nicely.. i dont know if they make a 120 Volt version or not.



this particular unit had a leak in the sealed circuit which wasa ROYAL PITA to fix and recharge due to everything being PACKED into the cabinet..
cadillackid is offline   Reply With Quote
Old 08-15-2022, 03:23 PM   #9
Bus Nut
 
Join Date: Apr 2020
Location: Northern California (Sacramento)
Posts: 887
Year: 1999
Coachwork: El Dorado Fiberglass
Chassis: Ford E450
Engine: V10 Gas
Old school gas dryers: there are two sources of moisture: the water in the clothes, and the water vapor from the process of combustion (if the dryer is gas). I can't imagine the minisplit being able to circulate the air enough to cycle out the moisture. Needs to be vented, pretty much end of story.

Newfangled dryers operate like a dehumidifier, but they first heat the input air (slightly), using one side of the coils. The air mixes with the wet clothes, sucks some of the moisture out, circulates over to the other side of the coil which chills it, condensing the moisture out, then sending the dry air back over the coils to repeat the cycle.

Rinse, wash, repeat, so to speak, until the clothes are dry. Takes longer.

Ventless are more energy efficient BUT they use electricity, not gas, so they may be a net extra load on your house (bus) electrical than a comparable vented gas dryer.
Rucker is offline   Reply With Quote
Old 08-15-2022, 03:48 PM   #10
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 17,152
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
if it were mine id prob look at where laundry is done most.. if parked at a campground with power, then id go for fully electric so you arent burning up propane.. if always out and about off-grid then it makes sense to use propane.. with a gas dryer you absolutely must vent it.. the flames burn right into the air stream and goes intop the drum and is pushed out the vent so you have raw combustion air inside your bus if you dont vent it... not to mention incredible amounts of moisture..
cadillackid is offline   Reply With Quote
Old 08-15-2022, 10:49 PM   #11
Bus Crazy
 
Join Date: Jun 2016
Location: Orange County, CA
Posts: 1,192
Year: 1990
Coachwork: integral
Chassis: Crown Supercoach II (rear engine)
Engine: Detroit 6V92TAC, DDEC 2, Jake brake, Allison HT740
Rated Cap: 37,400 lbs GVWR
Quote:
Originally Posted by TMartineau View Post
But I'm also worried about fit and placement. How much space is needed behind each type ( vented, not vented)? Being in a wheelchair I need every inch. Thoughts?
I have a vented Splendide in my bus that's not yet hooked up. The vent hose takes about three inches of space behind it: I put a 2" DWV elbow on the machine's lint trap, then a length of flexible corrugated rubber air hose running at about a 45 degree angle down to the floor where it connects to another piece of 2" DWV pipe that goes through the floor into the underfloor storage bay and then out the bottom. After the elbow it's all downhill from there, so there's nowhere for lint to accumulate. So far, so good.

John
Iceni John is offline   Reply With Quote
Old 08-21-2022, 11:08 AM   #12
New Member
 
Join Date: Jun 2020
Posts: 3
I use the Miele brand ventless dryer that's 110v and uses heat pump technology. I couldn't be happier. It doesn't seem to add moisture to the air, and if it does, it's very little. It dries the laundry in a surprisingly short time, too.

The downside? Very expensive ... probably around $2k if memory serves.
ChrisTX is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 09:36 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2022, vBulletin Solutions, Inc.