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09-27-2009, 04:33 PM
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#1
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Established Member
Join Date: Jul 2008
Location: Snohomish
Posts: 46
M.O.C. #8618
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Heater duct to nowhere
Prior to putting the Monty away for the winter, I decided to take a look at the water pump and see if I could eliminate some of the nosie when the pump is turned on using some of the ideas from this forum. After getting the front panel off I noticed one of the three heater ducts running down and laying on top of the lower frame. It wasn't connected to anything, so I turned on the heater to see if possibly it was a air inlet, but no it was a heater outlet. We have a duct going to the main duct and one going to the bathroom vent, but no place for the third duct. Any ideas? Can that vent be capped off to provide more flow to the other two?
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09-27-2009, 05:01 PM
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#2
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Montana Fan
Join Date: Aug 2006
Location: cottam
Posts: 318
M.O.C. #6133
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question could that be the one that heats the basement?just a thought.
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09-27-2009, 05:18 PM
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#3
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Montana Master
Join Date: Nov 2002
Location: Bakersfield
Posts: 5,316
M.O.C. #15
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Thor's suggestion is probably correct. They do heat the basement area. But you don't have to. If you don't want it down there then cap it off. But be prepared for cold weather country retaliation!
HamRad
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09-27-2009, 05:21 PM
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#4
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Established Member
Join Date: Jul 2008
Location: Snohomish
Posts: 46
M.O.C. #8618
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The duct was located behind the basement and the panel I took off was the aft basement panel. The duct was laying in that area. There is a register located in the panel, but nothing was hooked up to it (it appeared the duct would be to small to connect to the register, although it is a possibility and I didn't try it thinking it might be a way to cool the inverter). Is the basement normally heated?
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09-27-2009, 06:03 PM
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#5
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Montana Master
Join Date: Nov 2005
Location: Paola
Posts: 5,739
M.O.C. #4961
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There normally is not a duct for the basement. Those ducts are taped to the large duct coming from the furnace and some times the tape comes undone and the duct will fall to the floor. Look and see if you see a small round hole cut out in the large duct coming from the furnace. Maybe the factory forgot to hook up the small duct to it.
__________________
Dennis & Linda Ward
Paola, Kansas
Montana 3735MK Legacy Edition
1200 watts of Solar
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09-27-2009, 11:08 PM
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#6
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Seasoned Camper
Join Date: Sep 2006
Location: Palm Bay
Posts: 50
M.O.C. #6278
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Look for a hole in the floor, it might be to heat the belly tanks and water lines
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09-28-2009, 03:40 AM
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#7
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Montana Master
Join Date: Apr 2009
Location: Ardrossan
Posts: 729
M.O.C. #9261
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Our 09 3400RL is the same and this is the duct to heat the basement area, particularily the lower area where your front tanks are in the frame. Make sure the duct hose drops down into the lower part of the Monty to be effective for that area, as heat rises and comes up into the basement storage are.
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09-28-2009, 06:18 AM
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#8
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Montana Master
Join Date: Sep 2008
Location:
Posts: 560
M.O.C. #8818
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On my '09 3605, that small hose goes down through a hole in the decking to the tanks in the belly. It just hangs down there right over the holding tanks. I put some 1/4" metal mesh over the end of the hose to keep any mice from being able to get into the furnace from there.
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09-28-2009, 12:47 PM
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#9
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Montana Master
Join Date: Nov 2002
Location: Oceanside
Posts: 20,028
M.O.C. #20
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As others said there is a duct for heating the belly but I don't recall being able to see it without dropping the belly pan. Maybe the new ones are different. I see KTManiac can see the duct in his.
I noticed in a new Montana's basement storage area there was what looked like a heat vent. I assumed that's how they heat the basement and the water connection center. I know from having an indoor/outdoor thermometer with a sensor in the water connection area that some heat does get into that area in our 2007. However, I don't think we have a duct, just a couple of openings for heat to get in there from the coach. But the new Montana appeared to have a duct in the basement. I personally think that's a good thing for those of us who do some time in freezing weather.
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09-28-2009, 02:09 PM
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#10
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Montana Master
Join Date: Aug 2003
Location: Hebron
Posts: 675
M.O.C. #433
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Be careful about plugging off any heater vent. I'm told the plenum (sp) for those furnaces doesn't like to be over heated and can burn through. I'm sure some real expert (I'm sure not) will be along to clarify this
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09-28-2009, 03:56 PM
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#11
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Established Member
Join Date: Jul 2008
Location: Snohomish
Posts: 46
M.O.C. #8618
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Well the question has been answered by Montana service dept. I called this morning and they said the 2" duct is supposed to be laying down in that area (on the lower level approximately under the edroom steps to keep the water lines and tanks warmer. The register mounted on the basement wall is placed there to allow warm air into the basement area. I like the idea of placing mesh over the opening and will probably secure the duct horizonally since I found it facing straight down against the belly pan. Thanks everyone for your input.
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