Sunline RV Forum
Sunline User Photos

Go Back   Sunline Coach Owner's Club > Model Specific Forums > Sunline Travel Trailers
Click Here to Login

Join Sunline Club Forums Today


Reply
 
Thread Tools Search this Thread Display Modes
Old 09-13-2008, 10:34 AM   #1
Senior Member
 
Join Date: Aug 2006
Location: Pennsylvania
Posts: 275
SUN #19
Sunline1
Heater duct Hose color ??

How come the heater hose that comes from the furnace to the ducts on the wall of my sunline are "grey" and 'tinfoil" looking. The one going to the duct in the bathroom is grey, and the one going to the kitchen/dining area looks like tin foil in color. Just curious why the 2 different color? Any info appreciated.

Thanks
__________________

__________________
Sunline1

2002 Sunline model T-2975 (large Bath)
Sunline1 is offline   Reply With Quote
Old 09-15-2008, 09:21 PM   #2
Moderator
 
JohnB's Avatar
 
Join Date: Nov 2006
Location: Ohio
Posts: 9,175
SUN #89
JohnB is an unknown quantity at this point
Yes there are 2 styles of ducts like you said and they are physically made different.

Here is a pic from one of mine on the T2499


I really do not know the exact reason but the longer runs are from the gray cloth wrap type duct and the shorter runs are from the foil type. On my larger TT (T310SR) the long runs are really long and are the gray cloth type.

It "might" be the longer runs of the cloth type are sort of more insulated and do not radiate off as much heat off the side of the duct letting all more of he heat make it to the end to blow into a room a long place away. And they may cost more because of it but are needed on the long runs. The shorter runs of the tin foil may convect off heat but my not be a problem on short runs as the heat is going into that space soon anyway.

This is a good question. I never thought about this until now and really do not know the exact right answer but I'm now a curious number 2 Sunline inquirer.

John
__________________

__________________
Current Sunlines: 2004 T310SR - Fern Blue, 2004 T1950 - Fern Blue, 2004 T2475 - Nutmeg
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC

Google Custom Search For Sunline Owners Club
JohnB is offline   Reply With Quote
Old 09-16-2008, 06:09 AM   #3
Senior Member
 
Join Date: Aug 2006
Location: Pennsylvania
Posts: 275
SUN #19
Sunline1
John

Your right the longer run is the gray one, probably better insulated as you indicated. Don't know why I didn't put 2 and 2 together.

Maybe someone else will chim in.

thanks
__________________
Sunline1

2002 Sunline model T-2975 (large Bath)
Sunline1 is offline   Reply With Quote
Old 09-16-2008, 06:28 AM   #4
Senior Member
 
Join Date: Aug 2007
Location: New York
Posts: 404
SUN #385
Hematite
JohnB:

I also agree. It does make sense to insulate the longer runs and the cloth cover would do exactly that. I wonder if any other manufacturer would go to that extreme detail to be sure that the heating system worked well.
__________________
Rick


2007 Ford F150 FX4 Supercab 4x4, 5.4 FFV engine, 3.73LS.
Hematite is offline   Reply With Quote
Old 09-16-2008, 06:37 AM   #5
Senior Member
 
Steve Collins's Avatar
 
Join Date: Apr 2007
Location: New York
Posts: 1,846
SUN #264
Steve Collins is an unknown quantity at this point
This may help:

http://www.thermaflex.net/thermaflex.php This is the brand that is used in my rig.

I pulled the manufacturer's sticker off of a run of the foil stuff in our TT, and it states "FOR INSTALLATION IN LENGTH NOT OVER 14 FEET."

The online spec sheet for the foil stuff doesn't really give a max. length limit, but does say the stuff comes in 25' pieces.

The spec sheet for the gray stuff specifically says it's not limited in length of use like the foil stuff. Guess that means it is good for longer runs as in your TT's. Probably costs more, too.

Neither are insulated. Both are spec'd from -20 F to 250 F. They specifically mention residential bathroom vent runs in the product sheets so I am pretty sure this is the exact same stuff you'd buy at Home Depot, etc. for bathroom vents or dryer vents.
__________________

'12 F250 4x4 Super Duty PowerStroke 6.7 diesel
2011 to present: '11 Cougar 326MKS
1999 to 2011: '99 Sunline T-2453
SUN264 * Amateur Radio kd2iat monitoring 146.52
Steve Collins is offline   Reply With Quote
Old 09-16-2008, 08:32 AM   #6
Senior Member
 
Join Date: Aug 2006
Location: Pennsylvania
Posts: 275
SUN #19
Sunline1
In my case the non insulated (tin foil) looking stuff. Just happens to run under my kitchen sink and over the fresh water tank. Might help keep them from freezing with the furnace running, during fairly cold temps.
__________________
Sunline1

2002 Sunline model T-2975 (large Bath)
Sunline1 is offline   Reply With Quote
Old 09-16-2008, 09:41 AM   #7
Senior Member
 
Steve Collins's Avatar
 
Join Date: Apr 2007
Location: New York
Posts: 1,846
SUN #264
Steve Collins is an unknown quantity at this point
Quote:
Originally Posted by Sunline1
In my case the non insulated (tin foil) looking stuff. Just happens to run under my kitchen sink and over the fresh water tank. Might help keep them from freezing with the furnace running, during fairly cold temps.
Mine originates in the same compartment with the fresh water tank, and passes the city water intake and pipes and then all of the bathroom sink and outside shower plumbing. I suspect that in really cold weather, the radiated heat from the ducting would do a great job of keeping all of these areas very warm.

I am guessing that the gray ducting probably radiates heat, too, but since it is a fiberglass cloth instead of metal foil, I can't say if it radiates much differently than the foil. The manufacturer says it is not insulated, but I suspect the cloth has a tiny bit of insulation factor. Probably not enough to matter for our purposes.
__________________

__________________

'12 F250 4x4 Super Duty PowerStroke 6.7 diesel
2011 to present: '11 Cougar 326MKS
1999 to 2011: '99 Sunline T-2453
SUN264 * Amateur Radio kd2iat monitoring 146.52
Steve Collins 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
Frame paint color wagonman76 Repairs and Maintenance 7 05-10-2010 07:30 PM
Color Decor Ron & Alice Sunline Community 13 02-02-2010 07:15 PM
Atwood water heater water hose connections problems Sunline1 Repairs and Maintenance 17 08-31-2008 01:01 PM
Rear Awning? Interior Color Change ncque Sunline Que 8 03-02-2008 07:34 PM
Sunline paint color vcrt Sunline Community 4 07-03-2007 10:40 AM



» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Sunline RV or any of its affiliates. This is an independent, unofficial site.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:51 AM.