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10-26-2020, 11:22 AM #11
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10-26-2020, 12:24 PM #12
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10-26-2020, 01:39 PM #13Rob & Nikki + Cloverfield
2020 Grand Design Solitude S-Class 3350RL
2015 RAM 3500 Longhorn Laramie Crew Cab, Long Bed, 4x4 Dually Cummins/AISIN
Mountains of Pennsylvania
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10-26-2020, 05:26 PM #14
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Spoke to Grand Design today and they told me I would need to bring it to a dealer. My dealer is an hour and a half away. I also asked if every vent coming from the furnace is 4". However that I just learned is not the case.
I think the problem is the master bedroom ductwork is only 2" in size. Why they would take the longest run and reduce it in half makes no sense. The longer the run, typically the greater the diameter ductwork. There are only two possible reasons they might have done this.
A) the Master with the door closed could be considered slightly smaller, though certainly not half of the living room.
B) and maybe a greater reason, there is very little space in the area of that wall. In fact there is another 2" line that runs close to this hole in the wall.
See below pictures.
2021 Grand Design Imagine XLS 23BHE
2021 GMC Yukon Denali W/Duramax
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11-02-2020, 01:41 PM #15
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- Mar 2020
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- Fort Yukon, Alaska
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looknow12, My wife and I (and three kids) picked up the 23BHE from a dealer in Indiana on March 1st, this year. We drove 4,964 miles to Fairbanks, Alaska, arriving on March 21st. When things started to get cold, up into Canada, we drained the water and winterized the plumbing but still stayed in it in the evenings. Our coldest night was 9˚F. I noticed the same thing about the bathroom, we just put a small box in the doorway to the bathroom so it couldn't shut during the night. This summer, I took a closer look at the system and discovered the same thing as some people posting on here, about the 2" duct with a 4" fixture on it. To me, it seems a little bit misleading. However, I purchased a 4" closable vent for the bathroom and swapped it out. When I close that one, I notice a considerable increase in air movement to the bedroom, as well as warmer air. It does take a while for the air to warm up in the bedroom vent. I'm guessing that the bedroom vent goes through the basement, either heating that as well or bleeding some of the heat into that cavity before going to the bedroom. Either way, we haven't noticed a big issue with keeping the RV warm all around unless it gets down below freezing. After we put that vent in, the heat can be on in the RV and a person can take a shower with that vent closed all the way and the bathroom doesn't turn into a sauna. Overall, we really like the trailer and we're looking forward to a three month trip to the "lower 48" this coming spring.
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11-02-2020, 02:05 PM #16
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Thanks for the reply. See a more active thread on heat distribution. Including pictures of underbelly I posted.
https://www.mygrandrv.com/forum/show...e?goto=newpost
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11-16-2020, 06:01 PM #17
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So my dealer is going to call me back after talking to the rep and trying some adhoc fix.
So I ran some tests on CFM. My calculations might be slightly off, but you can use this as a comparison.
Bath - 60CFM
Living Room - 46CFM
Master Bedroom - 34CFM
So that's pretty bad, but temp numbers are horrific for Master Bath:
Note: The furnace cycles the flame so below is are ranges
Bath - 112.6F - 137.7F
Living Room - 102.2F - 129.6F
Master Bedroom - 80F-92.4F
Now if you're thinking maybe there is a problem there is. You cannot possibly heat the master bedroom with 90 degree and less temperature. Not unless you have a lot of air moving...we aren't even close.
Keep in mind wall temperatures I tested using a laser are about 59F at 8pm after a 55F Outdoor Temp day. By morning, they will plummet. Floor temp is 55F.
GD, come on. We need to fix this.2021 Grand Design Imagine XLS 23BHE
2021 GMC Yukon Denali W/Duramax
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12-23-2020, 07:37 PM #18
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Any update on this? We have the same problem, same model.
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12-23-2020, 07:56 PM #19
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No. I met with the grand design rep at my dealer. Dropped off the rv first week in December and have not heard anything despite repeated follow ups. we had discussed a few options but not happy with the response time on this. I will try to call grand design directly tomorrow to complain
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