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02-25-2012, 03:50 PM
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#1
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Established Member
Join Date: Mar 2011
Location: Elmira
Posts: 23
M.O.C. #11204
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Heat duct to tank area
I have a Montana 3605RL fifth wheel and after checking out the routing of all the hoses and ducts and evething else, I have noticed a 2" flexible heat hose which seems to go down into the lower tank area, which I believe is used to keep the holding tanks from freezing. My question is, if I camp in weather 45 degrees and above, can I remove this hose from the lower tank are and either plug is off to increase the heat through the other heat runs or can I run that hose to somewhere where it would be more benificial to heat the living space ?? Seems like a waste of hot air where it is going now, especially sice I don't camp in the freezing temperatures. Thanks for any reponses !! Campingmike
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02-25-2012, 04:01 PM
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#2
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Montana Master
Join Date: Jun 2010
Location: Colorado Springs
Posts: 3,335
M.O.C. #10496
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Well, you could plug it off and possibly gain some additional airflow to the rest of your living space. Personally, I wouldn't do it because there may be that one time that the weather changes unexpectedly and I would need it and it wouldn't be there. Then what?
__________________
2010 3150RL
LevelUp, Dual 6 volt batteries, Progressive Industries EMS HW50C, Honda EU2000i Generator, Bridgestone Duravis R250 tires, Torklift Glowstep Revolution Stairs, LED Tail lights
2015 RAM 3500 Laramie SRW LB CC Cummins 6.7L Aisin Trans B&W RVK3600
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02-25-2012, 04:05 PM
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#3
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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Quote:
quote:Originally posted by CORattler
Well, you could plug it off and possibly gain some additional airflow to the rest of your living space. Personally, I wouldn't do it because there may be that one time that the weather changes unexpectedly and I would need it and it wouldn't be there. Then what?
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X2, plus it wouldn't be a serious increase in airflow anyway. In order to get more heat in my basement I opened two holes in the ductwork in the basement. No noticeable effect on airflow or propane use from doing that.
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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02-25-2012, 06:34 PM
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#4
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Montana Fan
Join Date: Jul 2011
Location: madison
Posts: 120
M.O.C. #11617
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DqDick, the holes you opened, was that on the sheet metal duct over the basement? and how large?? or was it on the divider between basement and furnave/ tanks area???
I agree about leaving the original ducts as they come...
Thanks for the info...
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02-26-2012, 01:37 AM
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#5
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Montana Master
Join Date: Dec 2004
Location: Bum F Egypt
Posts: 979
M.O.C. #2733
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If you don't camp in freezing temp then there is no need for it. Seal both the duct and the hose.
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02-26-2012, 02:15 AM
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#6
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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I have no intention of ever being in weather so cold that I need to worry about freezing tanks; those days are over! I blocked mine off the first week I owned the unit. It does get cold here in Florida sometimes requiring the furnance in the mornings, today in fact, and heat vents seem to work fine. I figure less space to heat contributes to faster warmup and less propane.
__________________
Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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02-26-2012, 02:18 AM
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#7
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Montana Fan
Join Date: Feb 2012
Location: Homosassa
Posts: 307
M.O.C. #12211
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Even here in Homosassa Florida most people do not winterize their RVs, but last winter we had a week of temps in the teens, We lost 6 fruit trees and 5 queen palms. I think I would leave it alone so if abnormal cold weater did hit I could plug her up and keep her warm.
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02-26-2012, 03:13 AM
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#8
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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We spent an entire winter in Fountain Colorado, just outside Colorado Springs. My 2002 Montana underbelly was not heated, and no heat strips on the tanks. Although I did heatwrap my water lines, and suffered through snow, my tanks never froze which I figured was due to the fact that they were somewhat protected by the underbelly, and heat escape from inside the fifth wheel. I think it takes some long cold spells before those tanks will freeze. If I thought I would be in really cold weather, I would install heat strips as I believe they do a much better job of protecting the tanks. Just too much escape in that underbelly for furnace heat.
__________________
Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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02-26-2012, 03:22 AM
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#9
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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Quote:
quote:Originally posted by dpilot
DqDick, the holes you opened, was that on the sheet metal duct over the basement? and how large?? or was it on the divider between basement and furnave/ tanks area???
I agree about leaving the original ducts as they come...
Thanks for the info...
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Talked to the tech when we bought the rig and our HVAC people who work on our home and store when we got it home both recommended it if I was concerned with stuff freezing in the basement. Our HVAC people gave me a bit to drill two holes the size of quarters in either side of the duct where it crosses the basement. Does it do anything for me other than give me a mod no one else has? Who knows, but I like it and that's basically why we mess with our rigs.
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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02-26-2012, 12:07 PM
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#10
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Established Member
Join Date: Mar 2011
Location: Elmira
Posts: 23
M.O.C. #11204
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If I do decide to plug it off completely, is there a possible problem with tripping the overheat sensor in the furnace ? good questions for the sevice techs
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02-26-2012, 01:09 PM
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#11
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Montana Master
Join Date: Nov 2007
Location: Kville
Posts: 2,865
M.O.C. #7871
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Quote:
quote:Originally posted by 1retired06
We spent an entire winter in Fountain Colorado, just outside Colorado Springs. My 2002 Montana underbelly was not heated, and no heat strips on the tanks. Although I did heatwrap my water lines, and suffered through snow, my tanks never froze which I figured was due to the fact that they were somewhat protected by the underbelly, and heat escape from inside the fifth wheel. I think it takes some long cold spells before those tanks will freeze. If I thought I would be in really cold weather, I would install heat strips as I believe they do a much better job of protecting the tanks. Just too much escape in that underbelly for furnace heat.
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I think you are correct about the heat escaping from the inside to the basement...I know lots escapes outside.
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02-27-2012, 03:25 AM
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#12
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Montana Master
Join Date: Oct 2009
Location: Navarre
Posts: 1,527
M.O.C. #9765
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Mike,
I sent you a PM.
Mike
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02-29-2012, 04:24 AM
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#13
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Montana Fan
Join Date: Oct 2006
Location: St Catharines
Posts: 176
M.O.C. #6415
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I felt that there was about 20% of the furnace heat output going below to the tanks based on the pipe area. Since we seldom are in below freezing temps I built a diverter box which fits under the stairs. Using this box I can direct heat to the tanks if needed. For the rest of the time the heat comes out a vent pipe through an opening I cut in the stair riser and into the living area. I could not find 2in flexible duct so I used PVC pipe.
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02-29-2012, 03:17 PM
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#14
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Montana Master
Join Date: Aug 2006
Location: merced
Posts: 983
M.O.C. #6171
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I'm one of those that doesn't spend a lot of time where I need the heat ing the basement. So, I put a tee in the 2" pipe and put a closable vent into the trailer, when vent is open heat comes in the trailer when close heat is forced into basement
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