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03-27-2010, 07:34 AM
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#1
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New Member
Join Date: Mar 2010
Location: Germantown
Posts: 7
M.O.C. #10256
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furnace blower
We have just purchased a 2010 Montana Mountaineer DBQ345 and have a concern over the power/speed of the furnace blower fan. I was told at walk through that the speed for the furnace is not controlled by the thermostat, that it is one speed. But the speed for something that is fan forced air is almost nothing. It feels more like convection flow heating from the vents than anything forced by a fan. I have called the dealer about this and have an appointment to take it in this coming Tuesday. I would like some feedback from Montana owners on this to go in better informed.
Rick and Michelle
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03-27-2010, 11:43 AM
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#2
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Montana Master
Join Date: Jun 2004
Location: Benson
Posts: 3,121
M.O.C. #1658
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We don't get a blast of air from the floor vents, more like a gentle breeze
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03-27-2010, 12:49 PM
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#3
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Montana Master
Join Date: Jul 2006
Location: K.C.
Posts: 11,731
M.O.C. #5980
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Studies show that a gentle airflow of heat is much more comforting than higher fan speed. High airflow cools the body, the old 'Gravity' furnaces were much better at comfort than higher speed fans of today's furnaces.
Heat: low speed, A/C: higher speeds for more air movement, as: heat rises, cold air falls. Have you ever noticed that feeling as you take a corner in your vehicle and the cold air goes away, then comes back after the turn in really hot weather?
Your system is as it should be.
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03-27-2010, 01:22 PM
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#4
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Montana Master
Join Date: Dec 2006
Location: corning
Posts: 694
M.O.C. #6635
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Mine's like a gentle breeze. Warms the place up fast though, when it is first turned on.
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03-27-2010, 01:31 PM
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#5
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Montana Master
Join Date: Mar 2005
Location: Port Orchard
Posts: 1,153
M.O.C. #3403
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Take a look at the furnace to make sure your not loosing airflow due to loose fitting outlets like we had. I used duct tape to close all the air escaping from the loose fittings. Help the airflow in the trailer. We now get good airflow now throughout the trailer.
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03-27-2010, 08:19 PM
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#6
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Established Member
Join Date: Aug 2007
Location: Kansas City
Posts: 37
M.O.C. #7530
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our '03 3255RL has the same 'low-flow' feeling to it when the furnace comes on,but like everyone else, the warmth just seems to be there. Remember that we all have a certain amout of warm air flow going down the the underbelly area. Wouldn't want to freeze those pipes. All in all the furnace does a pretty good job. I just wish they could capture more of the heat that goes overboard through the furnace exhaust. Thats just plain wasted heat!
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03-27-2010, 11:49 PM
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#7
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Montana Master
Join Date: Apr 2007
Location: South Shore
Posts: 6,009
M.O.C. #7110
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Try turning just the fan on and see if you get the air flow that you would expect.
__________________
2011 GMC 4X4 dually CC, 6.6 Duramax with Allison Transmission. Formally 2001 Montana,2007 3400RL Montana, presently 2018 3401RS Alpine.
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12-28-2012, 01:17 PM
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#8
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Gone Traveling
Join Date: Sep 2012
Location: ALBUQUERQUE
Posts: 248
M.O.C. #12840
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Question: Could one redirect the exhaust from the furnace to a skirted underbelly?
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12-28-2012, 01:50 PM
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#9
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Montana Master
Join Date: Jul 2006
Location: K.C.
Posts: 11,731
M.O.C. #5980
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Quote:
quote:Originally posted by McIver
Question: Could one redirect the exhaust from the furnace to a skirted underbelly?
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The small duct is fine for that. It is already there. It would not be good to use the exhaust for that, as it would be dangerous to send furnace exhaust containing dangerous carbon monoxide into the space.
We like you, and want you to be still with us to come to rally's and talk on the Forum.
Ozz
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12-28-2012, 02:21 PM
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#10
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Gone Traveling
Join Date: Sep 2012
Location: ALBUQUERQUE
Posts: 248
M.O.C. #12840
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Fire5er: Explain how you got to the ducts to tape please.
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12-28-2012, 02:53 PM
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#11
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Montana Master
Join Date: Oct 2011
Location: Lykens
Posts: 545
M.O.C. #11842
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On my unit the closer to the furnace the duct is the greater the airflow. It varies pretty much but adequately heats the trailer.
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12-28-2012, 03:48 PM
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#12
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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We have a 2010 and the furnace flow is low and works very well. If you want more heat in the basement than you are currently getting you can drill a couple of holes ( I drilled three 1 1/2") in the duct where it crosses the basement and ends at the front wall. If you quit camping where it's really cold as we now have you can then put duct tape over the holes, but still have them ready to use if you get real cold again.
__________________
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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12-29-2012, 03:15 AM
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#13
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Montana Master
Join Date: Jan 2009
Location: Vermontville
Posts: 1,129
M.O.C. #9045
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If you have a ceiling fan turn it on low speed and you will be pushing all that hot air that rises back down. Makes a world of difference in my opinion.
Dave
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12-30-2012, 03:15 AM
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#14
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Montana Master
Join Date: Feb 2008
Location: Hillsboro
Posts: 593
M.O.C. #8238
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If you are real ambitious, give the whole system a thorough checkout. Start with the furnace, to see if all the fittings are hooked up (found one loose hose) and all the adapters are fully screwed into place. Then make sure there aren't any kinked or smashed flex hoses. Also, unscrew and lift out the diffusers from the floor ductwork, and with a flashlight and mirror, look down the duct. Surprising how much construction debris one finds in the duct, including the piece of flooring when they cut the hole in the first place. Also check for loose pieces of cut carpet hanging down into the duct, along with loose or hanging pieces of tin from cutting out the diffuser holes. I found all of the above. Using some good HVAC tape, and cleaning up the "loose ends" made a difference. 
__________________
Terry and Patsy
Vietnam Veteran, US Navy
2017 3810
2015 GMC Sierra 4X4 3500 SRW
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12-30-2012, 03:44 AM
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#15
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Montana Master
Join Date: Jul 2006
Location: K.C.
Posts: 11,731
M.O.C. #5980
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Good post Terry.
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12-31-2012, 03:31 AM
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#16
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Montana Fan
Join Date: Jun 2011
Location: Santa Fe
Posts: 270
M.O.C. #11454
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i had the same feeling with my furnace, so i looked as the dealer said things were normal but..
https://picasaweb.google.com/lh/phot...eat=directlink
sorry about not posting actual pix but i need some computer learning yet
but after looking under stairs at the back of the furnace i found a few problems like the main output like the pix, just taped in, not and other smaller hoses not hooked up
mikey
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12-31-2012, 10:14 AM
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#17
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Montana Master
Join Date: Jul 2006
Location: K.C.
Posts: 11,731
M.O.C. #5980
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mikey, that is a 'spin-in' fitting, they didn't take the time to install it correctly, they had to know the tape wouldn't hold it. Inexcusable.
Glad you fixed it right.
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01-03-2013, 02:47 PM
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#18
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Montana Fan
Join Date: Sep 2010
Location: Terrell
Posts: 113
M.O.C. #10714
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Mike's photo could been in my basement this morning. We were not getting heat from the bedroom register, so I pull the basement wall and saw the duck complete off the cell whole. They had used three small piece of tape to mount it. We fixed by drill and mounting with screws and then duck tape. Its not coming down again. WE HAVE HEAT IN THE BEDROOM coming from the vent on the floor.
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01-03-2013, 02:55 PM
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#19
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Montana Fan
Join Date: Mar 2011
Location: gresham
Posts: 489
M.O.C. #11202
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Quote:
quote:Originally posted by McIver
Question: Could one redirect the exhaust from the furnace to a skirted underbelly?
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One could do this, but then, one could wake up dead the next morning from carbon monoxide poisoning after doing so.
As Ozz says though, there is a warm air supply duct to the underbelly already.
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01-04-2013, 01:33 AM
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#20
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Montana Master
Join Date: Jul 2006
Location: K.C.
Posts: 11,731
M.O.C. #5980
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Quote:
quote:Originally posted by Joe in TX
Mike's photo could been in my basement this morning. We were not getting heat from the bedroom register, so I pull the basement wall and saw the duck complete off the cell whole. They had used three small piece of tape to mount it. We fixed by drill and mounting with screws and then duck tape. Its not coming down again. WE HAVE HEAT IN THE BEDROOM coming from the vent on the floor.
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Good job! too bad they did such a crappy job on so many Montana's, where was the quality control guy?
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