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ElementZero's avatar
ElementZero
Explorer
Dec 29, 2015

Condensation in RV compared to Travel Trailer

We have a Keystone Passport 3390bh. We saw a Thor Outlaw and are very interested (although mostly in last years 37MD). We keep it about 72 in our trailer.

One question we have is that with our trailer, we have been in cold temperatures - down to 26F. We had a ceramic heater running which kept us all warm inside though. Unfortunately the frame is aluminum ad everywhere there was a "stud" it would be dripping wet.

During the summer (and this currently warm winter) when its >75 outside we get moisture literally dripping from the vents.

Now, I'm not asking how to fix the trailer (various tricks and dehumidifiers), rather I'm asking whether a Class A RV has these same issues. They would seemingly be caused due to the extremely small amount of insulation and basically I'm asking if Class A's have way more insulation to where the condensation problem is not an issue.

If anybody knows or especially if you have first hand experience with a Thor Outlaw, I would appreciate it.
Class A

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  • bsinmich's avatar
    bsinmich
    Explorer
    Dec 29, 2015
    If you look at Class As you will find that Newmar lists the R value of insulation in their brochures. A couple others may list their insulation R values. The entry level MHs will be more susceptible to your problem. Newmar also has the quietest AC system I have ever had in my 46 years of RVing.
  • donfrump's avatar
    donfrump
    Explorer
    Dec 29, 2015
    ElementZero wrote:
    Tinstar wrote:
    "when its >75 outside we get moisture literally dripping from the vents."

    What vents? Are you talking about the a/c, roof vents, window vents?


    Sorry, A/C vents, the air vents are fine.

    And yes I blame the humidity on Florida. The cold weather was up in West Virginia in mid-November.

    Again I'm not so much looking for a fix or even specifically what is causing the issue as much as I am just wondering if a Class A RV (specifically a Thor Outlaw if possible) has the same issues.

    Thanks for all the input so far!! :)

    yes it will as I said earlier some units seem worse than others
    I think its all to do with circulation when having problems to some degree
  • ElementZero's avatar
    ElementZero
    Explorer
    Dec 29, 2015
    Tinstar wrote:
    "when its >75 outside we get moisture literally dripping from the vents."

    What vents? Are you talking about the a/c, roof vents, window vents?


    Sorry, A/C vents, the air vents are fine.

    And yes I blame the humidity on Florida. The cold weather was up in West Virginia in mid-November.

    Again I'm not so much looking for a fix or even specifically what is causing the issue as much as I am just wondering if a Class A RV (specifically a Thor Outlaw if possible) has the same issues.

    Thanks for all the input so far!! :)
  • donfrump's avatar
    donfrump
    Explorer
    Dec 29, 2015
    bluwtr49 wrote:
    I have never had any condensation in either of our two MH's but, like you, had that issue in our Cougar TT.

    Our heat is supplied by a hydronic system in both so that may or may not be a factor. I do know the insulation in the MH's were far superior to the TT.


    you lived in southern florida ?? this guys not talking any heater at 75 degrees however yes a hydro hot system will be far far less condensation than any LPG fired furnace or space heater for sure
    I have found up north anyone that lives in a RV and uses LPG heat especially and its cold like below zero you will get condensation
    and keeping it at 72 verses say 68 it gets even worse
  • bluwtr49's avatar
    bluwtr49
    Explorer II
    Dec 29, 2015
    I have never had any condensation in either of our two MH's but, like you, had that issue in our Cougar TT.

    Our heat is supplied by a hydronic system in both so that may or may not be a factor. I do know the insulation in the MH's were far superior to the TT.
  • donfrump's avatar
    donfrump
    Explorer
    Dec 29, 2015
    Tinstar wrote:
    "when its >75 outside we get moisture literally dripping from the vents."

    What vents? Are you talking about the a/c, roof vents, window vents?


    all vents would be my guess based on how bad people claim humidity can be in south florida
  • Tinstar's avatar
    Tinstar
    Explorer
    Dec 29, 2015
    "when its >75 outside we get moisture literally dripping from the vents."

    What vents? Are you talking about the a/c, roof vents, window vents?
  • donfrump's avatar
    donfrump
    Explorer
    Dec 29, 2015
    ElementZero wrote:
    We have a Keystone Passport 3390bh. We saw a Thor Outlaw and are very interested (although mostly in last years 37MD). We keep it about 72 in our trailer.

    One question we have is that with our trailer, we have been in cold temperatures - down to 26F. We had a ceramic heater running which kept us all warm inside though. Unfortunately the frame is aluminum ad everywhere there was a "stud" it would be dripping wet.

    During the summer (and this currently warm winter) when its >75 outside we get moisture literally dripping from the vents.

    Now, I'm not asking how to fix the trailer (various tricks and dehumidifiers), rather I'm asking whether a Class A RV has these same issues. They would seemingly be caused due to the extremely small amount of insulation and basically I'm asking if Class A's have way more insulation to where the condensation problem is not an issue.

    If anybody knows or especially if you have first hand experience with a Thor Outlaw, I would appreciate it.


    from the small amount I know about florida because it has such high humidity levels all Rv experience condensation problems My opinion is keep it well vented so good air circulation?
    There was a fellow on here from florida lately complaining about heavy condensation in his new Tiffin AB and blaming tiffin.
    its nothing to do with Tiffin its Florida

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