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Old 03-22-2010, 09:32 AM   #1
dpam
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3150RL - Dual Pane Windows - Option - Two Question

I'm currently shopping around for a Montana 3150RL, and a dealer suggested that I consider ordering dual pane windows. I was told by another dealer that dual pane windows add only a very small R factor, but they also add approximately 900 lbs to the dry weight of the trailer? I would like to keep the trailer weight down as much as possible.

Also,

Can dual pane windows be added after by a dealer?

I'd appreciate your points of view.

Thank you

David
 
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Old 03-22-2010, 10:00 AM   #2
Jolu
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David, I don't know for sure but, I would think the dual pane windows in a 3150 would not weigh 900 lbs.
I can tell you we just picked up our 3150RL and do not have the dual pane windows. The new units have more insulation than only two years ago and heat much better and seem to be tighter. We have had dual pane windows in motorhomes we have owned. I thought they were worth the money when I had them. I am happy with only single pane windows in the Monty. You will have to make that call on them.
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Old 03-22-2010, 10:04 AM   #3
richfaa
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Dual pane windows do not add 900lbs to the camper. We have been through this myth before. They add a couple hundred lbs. They do have a very low R factor. They do help with reducing noise. Personal choice.
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Old 03-22-2010, 10:12 AM   #4
camper4
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We have them. We like them. Low R value. Less condensation. Quieter. Would get them again.
Either get them through the factory or do not do it.
My opinion.
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Old 03-22-2010, 10:16 AM   #5
DarMar
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David: First of all Welcome to the MOC family, you will glean a wealth of knowledge and friendship during your time here.

The subject of dual pane windows is discussed here quite often and as I recall the actual weight DIFFERENCE between dual pane and single pane windows is actually less than 600lbs. This is our 2nd Montana with the dual pane windows and compared to the previous SOB that we had we will never own another unit without them. Your info is correct that they actually only add a very small R factor to the unit as a whole but the dual pane windows reduce the outside noise substantially. We also use our rig early in the season (end of April and early May) and late in the season (end of September and early October) and that is when we find them to be a real advantage. With the singles we would find copious amounts of moisture forming on the windows over night with the blinds drawn and as well during the day in the cooler temps sitting next to them one could feel a lot of cold radiating from them. Now of course the dual panes don't totally eliminate the moisture and coolness but the difference between the two is extreme. For those reason I would recommend to you for our climate you should strongly consider the dual pane.
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Old 03-22-2010, 01:26 PM   #6
bruiser
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Hello David. I also live in Calgary. We have had our Montana for almost 4 years. Dual pane windows were a must have for us. In our previous travel trailer we had single pane windows and constantly had moisture build-up on the windows. We do a fair amount of winter camping locally and with the dual pane windows in the Montana we have never had condensation problems. There may be only a small additional R factor but it makes a world of difference in our climate. I'm surprised that a local dealer would even suggest single pane windows. I'm pretty sure that Carstairs RV, where we bought ours, only brings in units with dual pane windows.

I don't know for a fact how much the additional weight is but I agree with previous posters that 900 lbs. seems too high.
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Old 03-22-2010, 03:02 PM   #7
Don57
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I'm buying a 2011 3400rl,today I ordered dual pane glass the dealer informed me that the glass includes the slides only. My question is why not the top window (escape hatch), the door,& large window at the rear, I'm not too okeefied but when its approaching 20 degreesF, should I hang an electric blanket across the rear LARGE window
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Old 03-22-2010, 03:20 PM   #8
8e3k0
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900 lbs is way off and would be more like 15% of the that amount.
It was a high priority for us and we ordered the dual pane option even though the sales person tried to say it was not necessary as they had units on the lot with single pane and wanted to more that particular product. We appreciate the noise reduction and absence of moisture formation during the cold weather periods and high humidity.
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Old 03-23-2010, 10:33 AM   #9
RCN.Stoker
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quote:Originally posted by RCN.Stoker

Ditto to noise and condensation comments. I also find sitting next to them not as cold but maybe that is just my imagination.
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Old 03-23-2010, 10:52 AM   #10
camper4
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On my 5er all windows except the entry door are dual pane. Not just the slider parts.
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