Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 03-31-2014, 08:40 PM   #1
Junior Member
 
Join Date: Feb 2013
Posts: 14
Condensation

Any suggestions on how to keep down the condensation on windows during the winter when you have to keep the rv heated.
Thanks
Celia
__________________

__________________
cmoore is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 03-31-2014, 08:46 PM   #2
Senior Member
 
TBS-POPS's Avatar
 
Join Date: Nov 2013
Location: Valley Springs, Ca
Posts: 368
Do your winters in Florida!
__________________

__________________
2018 Vilano 375FL
2017 F-350 CC DRW 6.7
TBS-POPS is offline   Reply With Quote
Old 03-31-2014, 08:47 PM   #3
Senior Member
 
BFlinn181's Avatar
 
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 16,208
A. Open a window or roof vent.
B. Stop breathing, sweating, cooking, and showering.



It's always an issue in a tight space with little air exchange. I've thought of rigging a ceramic heater up to a piece of dryer vent hose to an open vent or window so dry outside air would be heated and push moist air out. Problem is, the large glass areas behind curtains and blinds would still be a cold space for condensation to collect. If you put a fan on to blow the window dry, you also create a large amount of cold air that has to be heated again.
__________________

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
BFlinn181 is online now   Reply With Quote
Old 03-31-2014, 09:51 PM   #4
Senior Member
 
TonyDi's Avatar


 
Join Date: Feb 2011
Location: Point Pleasant Beach, NJ
Posts: 10,406
Just make sure you have adequate ventilation and will end the condensation. As mentioned above open a vent, a window, or install a small dehumidifier.
__________________
Tony & Ruth........... FMCA#F416727
Newmar Dutch Star 4320, Spartan MM Chassis, Cat C9, Jeep Grand Cherokee Hemi, Blue Ox Aventa LX, and Brake Buddy. TST 507 TPMS
TonyDi is online now   Reply With Quote
Old 04-01-2014, 01:14 AM   #5
Senior Member
 
gruelens's Avatar
 
Join Date: Jul 2012
Posts: 1,285
Two major issues that cause condensation are:

Burning propane in an unvented heater, like a catalytic or blue flame heater.

Single pane windows side windows and windshield.

As mentioned, provide ventilation. I would also suggest toweling the windows off regularly to absorb moisture, then drying the towel outside the coach. If you dry inside you are re-introducing the moisture back inside.

Is your RV single pane windows?
Do you burn propane unvented... stove or heater?
__________________
George R. - Fulltiming since January '03
2007 Newmar Mountain Aire 3991
2012 Chevy Malibu LT1
gruelens is offline   Reply With Quote
Old 04-01-2014, 04:46 AM   #6
Member
 
Join Date: Mar 2014
Posts: 65
Our solution....

Electric Tube Heaters | 1ft 2ft 3ft 4ft 5ft 6ft | Greenhouse Shed Garage Caravan | eBay

We've RVed all year round and are now fulltime, so condensation managment is a necessity. Keeping the RV warm is critical, keep the air moving and ventiltation. We have vent covers on all three roof vents and keep the bathroom vent wide open all the time and the bedroom and living area ones at least cracked, living wide open during cooking. One of the biggest, assuming you have dual pane windows, issues is the windshield, huge single pane.

The above link, hope it worked, is what we use on the dash, 2 off 3ft and apart from heavy cooking, boiling veg etc we rarely have windshield condensation, and by simple convection any moisture is encouraged to rise ultimatly finding the roof vent and leaving. The link is UK but I'd guess you have the same, may be by a different name, in the US?

Our RVS have been flat dash types so some small door knobs added to the brackets lift the heater about 1.5" of the dash, piece of mind but simple flat aluminium brackets could be bent up for non flat applications, these things don't weigh much.
__________________
Si, Sarah and Shelby the westie
2008 Damon Daybreak 3070
98 TJ, 4" lift, 31s, usual stuff
Dodgey is offline   Reply With Quote
Old 04-01-2014, 09:08 PM   #7
Senior Member
 
ImagesByHawk's Avatar
 
Holiday Rambler Owners Club
Join Date: Nov 2013
Posts: 165
The three things that at humidity inside the coach when its cold are the furnaces, showering and cooking.

Run another heat source when you can, such as heat pumps if you have them...or electric heaters. If you only have the furnace, then be sure to crack a vent ever so slightly a couple times a day for ten to twenty minutes.

Right after you step out of the shower, turn on the ceiling exhaust fan for a few minutes.

If you can, have an external exhaust port put in for your range hood/microwave. That will allow you to exhaust the steam produced while cooking. Otherwise, again open the roof vent slightly to allow the steam to escape.

Fans. A fan or two to keep air moving throughout the inside of the rig. It helps to distribute the heat evenly.
__________________
2004 HR Ambassador 38PDQ
http://usa-rvnomads.com/
ImagesByHawk is offline   Reply With Quote
Old 04-01-2014, 09:35 PM   #8
Senior Member
 
Ray,IN's Avatar
 
Join Date: Aug 2001
Location: North America somewhere
Posts: 13,686
Quote:
Originally Posted by ImagesByHawk View Post
The three things that at humidity inside the coach when its cold are the furnaces, showering and cooking.

Run another heat source when you can, such as heat pumps if you have them...or electric heaters. If you only have the furnace, then be sure to crack a vent ever so slightly a couple times a day for ten to twenty minutes.

Right after you step out of the shower, turn on the ceiling exhaust fan for a few minutes.

If you can, have an external exhaust port put in for your range hood/microwave. That will allow you to exhaust the steam produced while cooking. Otherwise, again open the roof vent slightly to allow the steam to escape.

Fans. A fan or two to keep air moving throughout the inside of the rig. It helps to distribute the heat evenly.
If your LP furnace is introducing moisture into your RV something is wrong. The combustion chamber(heat exchanger) is completely separate from the heated air blowing through the vents, which is re-cycled by the furnace blower.
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution. "Abraham Lincoln"
Ray,IN is offline   Reply With Quote
Old 04-01-2014, 09:58 PM   #9
Senior Member
 
BFlinn181's Avatar
 
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 16,208
Quote:
Originally Posted by Ray,IN View Post
If your LP furnace is introducing moisture into your RV something is wrong. The combustion chamber(heat exchanger) is completely separate from the heated air blowing through the vents, which is re-cycled by the furnace blower.
Beat me to it Ray, no way a properly working furnace does anything but heat and recirculate inside air. All combustion air and exhaust is separated from interior loop.

Respiration, perspiration, bathing, and cooking are the main ways humidity is added to the interior. The single pane glass forms a perfect condensing surface for the moisture in the RV. The relative humidity inside a heated RV is actually lower than comfortable for most of us, but the moisture formed on the glass makes us think it's too humid inside.
__________________

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
BFlinn181 is online now   Reply With Quote
Old 04-02-2014, 08:12 AM   #10
Senior Member
 
ImagesByHawk's Avatar
 
Holiday Rambler Owners Club
Join Date: Nov 2013
Posts: 165
Quote:
Originally Posted by Ray,IN View Post
If your LP furnace is introducing moisture into your RV something is wrong. The combustion chamber(heat exchanger) is completely separate from the heated air blowing through the vents, which is re-cycled by the furnace blower.
Our furnaces are operating properly. We do notice that when we use them condensation forms on the windshield and window frames must faster than when we use the heat pumps. I think it is due to the rapid contrast between cold and warm air, as the furnace puts out more heat at a faster rate than the heat pumps do.

Double pane windows are an improvement over singles, but if you still have metal framed windows, you'll still experience heat loss and cold transfer as well as condensation on the frames.
__________________

__________________
2004 HR Ambassador 38PDQ
http://usa-rvnomads.com/
ImagesByHawk is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Condensation Rkh MH-General Discussions & Problems 10 02-28-2014 10:31 PM
Condensation in rear closet? nukeworker Class A Motorhome Discussions 7 02-19-2014 11:43 PM
Condensation Issue britcon Newmar Owner's Forum 2 02-18-2014 02:52 PM
Condensation muscob Thor Industries Owner's Forum 5 01-29-2014 01:05 PM
Have many had major condensation & mold problems in east Texas? PaulAllen 5th Wheel Discussion 28 10-10-2013 02:05 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:06 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.