Go Back   iRV2 Forums > TRAVEL TRAILER, 5th WHEEL & TRUCK CAMPER FORUMS > 5th Wheel Discussion
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  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 01-07-2014, 06:54 AM   #1
Senior Member
tuffr2's Avatar
Join Date: Sep 2012
Location: Palm Coast Florida
Posts: 3,238
This cold weather illustrates poor insulation

I have tested my poorly insulated and sealed trailer. 28 degrees no wind, the furnace runs 80% of the time. Location north Florida. Using electric fireplace and 2 small electric heaters work down to 35 degrees.

2011 SunnyBrook Bristol Bay with 'All Season Package'.

Just wondering what others are experiencing? How often does your furnace cycle? What 5er do you have?

tuffr2 is online now   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 01-07-2014, 11:29 AM   #2
Senior Member
Texas Boomers Club
Join Date: Feb 2003
Location: Dickinson Texas USA
Posts: 1,238
Mine cycles about once or twice an hour as the temps fall. We've had 18-19 degrees the last two nights and only run the electric fireplace for additional heat.

2018 Heartland Landmark Oshkosh
JayC is offline   Reply With Quote
Old 01-07-2014, 12:07 PM   #3
Senior Member
mhs4771's Avatar
Join Date: Oct 2010
Location: Western New York (summer) Sebring FL (winter)
Posts: 370
We're in Central Florida, 48 outside/70 inside with just the Fireplace. Have the Furnace set for 60 but didn't come on lastnight or today.
2011 Chevy Silverado 3500HD LT Ext Cab 4x4 Duramax/Allison, 2016 Redwood 39MB, Disc Brakes, Mor/ryde IS, GY 17.5" H tires, 5.5K Onan, Dual ACs, auto level, auto sat dish, stacked washer/dryer, residential fridge, King sleep number. Michelle & Ann
mhs4771 is offline   Reply With Quote
Old 01-07-2014, 12:44 PM   #4
Senior Member
Join Date: Sep 2012
Posts: 4,232
Using heaters like that won't send heat to your holding tank and cargo bays so they run less as they don't heat as large an area.
jesilvas is offline   Reply With Quote
Old 01-07-2014, 12:50 PM   #5
Senior Member
Thor Owners Club
Join Date: Jun 2011
Posts: 2,892
Even though our rig has a "Polar package".... I accept that this is more of a marketing tool/gimmick than anything....With the slideouts I am under no illusion that my rig is energy efficient....
Fred1609 is offline   Reply With Quote
Old 01-07-2014, 12:51 PM   #6
Senior Member
J Birder's Avatar
Join Date: Feb 2012
Location: Lake County, IL
Posts: 1,243
I stupidly left the slide open and got 4" of snow on it. Then the snow softened and froze into solid ice.

I turned the heat on, expecting that it would melt, or at least soften the ice. I got the inside up to 70 and left it that way for 24 hours. It didn't melt a bit of the ice. The insulation must be better than I thought.

Retired electronics engineer. Avid paddler & birder.
2011 Silverado 2500HD, diesel, 4x4,crew cab, 8' bed
Palomino Puma 253FBS (27' 5er) & '94 19' Class B
J Birder is offline   Reply With Quote
Old 01-07-2014, 01:32 PM   #7
Senior Member
tuffr2's Avatar
Join Date: Sep 2012
Location: Palm Coast Florida
Posts: 3,238
I think the 'All Season' package is having 2 A/C units for summer cooling. The A/C units have heat strips for extra heating. I think that is the 'All Season' package...not any additional sealing or insulation. Also no consideration as how long the furnace runs or how often it cycles on and off.

The single pane windows should have told me I would have to tough it out during cold spells.
tuffr2 is online now   Reply With Quote
Old 01-07-2014, 01:36 PM   #8
Senior Member
caissiel's Avatar
Join Date: Oct 2011
Posts: 1,312
I have a Heartland Big Country 39ft and 35000 BTU propane furnace. Windows are double glassed though. I never check the furnace cycle but it starts often with 1 deg differetial thermostat. We are cossy with no draft and temperature swings.
Daytime 70 and nigh time is 60.
Our unit is tested at 0 f so i am satisfied it does it with its furnace going wide open.
We have traveled at that low temperature on batteries and stayed comfy all night. Not hot but good. With all slides in though.
We have a desk slide we can bring in for colder weather. It can help on floor heat lost.
They are not houses as the huge storage area has large doors wasting some more heat. We keep it full so it becomes a good heat sink for morning dip on temperature.
Barbara and Laurent, Hartland Big Country 3500RL. 39 ft long and 15500 GVW.
2005 Ford F250 SD, XL F250 4x4, Long Box, 6.0L Diesel, 6 Speed Stick, Hypertech Max Energy for Fuel mileage of 21 MPusG empty, 12.6 MPusG pulling the BC. ScangaugeII for display..
caissiel is offline   Reply With Quote
Old 01-07-2014, 03:23 PM   #9
Blacksmith9's Avatar
Join Date: Dec 2011
Posts: 36
The single pane windows should have told me I would have to tough it out during cold spells.[/QUOTE]

How can they call it an all season package with single pane windows? Dual pane windows make all the difference in the world. JMO
Blacksmith9 is offline   Reply With Quote
Old 01-08-2014, 06:42 AM   #10
Senior Member
Join Date: Sep 2011
Location: South West Michigan
Posts: 399
I have a 2010 Keystone Alpine and am fulltiming in Michigan and it hasn't been above 0 since Friday. I have an oil filled heater in the basement on low and the fireplace on high no issues so far . furnace doesn't run much. I covered 3 windows that we didn't need with foil insulation and the others I covered the bottom half. Put foam plugs in the roof vents and opened the wall between the basement and the crawl space. Only issue was the water heater rusted thru and filled the comoplast with water / ice and knocked it to the ground. Took a day to make a temporary repair till spring and installed a new heater
mikell is offline   Reply With Quote
Old 01-08-2014, 06:51 AM   #11
Senior Member
450Donn's Avatar
Join Date: Jun 2006
Location: Dallas,OR
Posts: 2,660
I think most RV's are insulated about as good as can be expected. Most have far less than 2X4 exterior wall construction so what do you expect? R17 is about as much as your going to get in a 2X2 stud wall. And manufacturers simply do not use the best of materials to insulate their products. After all they are designed for recreational use, not full timing in. There are ways to make them better, but unless you plan to tear the outside wall material off and start over it is not going to happen. BTW, what are the R values claimed by your manufacturer for your unit?
Don and Lorri
2007 Dodge 3500 dually
Resident Dummy.
450Donn is online now   Reply With Quote
Old 01-08-2014, 07:42 AM   #12
Senior Member
Join Date: Sep 2012
Posts: 4,232
Originally Posted by Blacksmith9 View Post
How can they call it an all season package with single pane windows? Dual pane windows make all the difference in the world. JMO
Because "four seasons" and "all season" is not an industry standard term. It's a sales term.
jesilvas is offline   Reply With Quote
Old 01-08-2014, 07:49 AM   #13
Senior Member
tuffr2's Avatar
Join Date: Sep 2012
Location: Palm Coast Florida
Posts: 3,238
I would say most of cold outside air leaking in the trailer is coming from under the slide. That and the single pane slider windows.

I have a good seal on the right, left and top of the slide. But if I lift the carpet on the floor of the slide I can feel cold air. Also the floor is coldest right in front of the slide.

How is the underside of the slide supposed to be sealed?
tuffr2 is online now   Reply With Quote
Old 01-08-2014, 08:06 AM   #14
Senior Member
Join Date: Mar 2013
Location: Langley. BC, Canada
Posts: 677
Units that are fiberglass and have rigid foam insulation will be better than aluminum sided trailers. With wood framing, they shove batt type insulation in the walls and don't do a very good job of it. Same in the ceilings.

And there's air leakage and trailers aren't very well sealed up. You've got the drainage slots in windows, holes in the floor for piping, gaps in slide seals, etc. that let air in. But in the winter you should have some vents and windows cracked open a bit to let moisture out otherwise you will can end up with condensation in the ceiling and walls that can cause some serious problems. Someone here recently had water raining down from their ceiling because of this.

They could use better insulation like polyisocyanurate (aka "iso board") but they don't. Garage doors with this have R12 value. They typically use the cheapo expanded polystyrene stuff with R value of R4 per inch. One thing about the polystyrene stuff is that it absorbs moisture. With cold enough temps outside and high moisture level inside, moisture can condense on the interior side of the exterior cladding and roof.

Camping for a few days in the winter should be okay but if you're living in one, you may have issues.

RVs just don't make the best of winter abodes. Some are just better than others. MHs can be pretty bad in cold weather with various components not working well or at all.

Gil & Deb & Dougal the Springer Spaniel
2014 KZ Spree 262RKS & Ford F250 supercab V10 4x4 LB
Langley, B.C.
myredracer is offline   Reply With Quote

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
Cold weather heating johnnyreno Entegra Owner's Forum 20 12-25-2013 12:00 PM
Dometic Refridge Stopped Working in Cold Weather sctdixon RV Systems & Appliances 10 12-13-2013 08:07 PM
cold weather and wet windows jastinjr Class A Motorhome Discussions 2 12-06-2013 02:00 PM
Cold weather pete davis iRV2.com General Discussion 17 12-04-2013 10:56 PM
Cold weather Salt Fisher Tiffin Motorhomes Owners Forum 5 11-22-2013 01:38 PM

» Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:31 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.