How do you check for Mud Dauber in Furnace

Discussion in 'Heating / Cooling Systems' started by USAF Chief, May 5, 2008.

  1. USAF Chief

    USAF Chief New Member

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    I have a stupid question. How can you check you furnace for Mud Dauber without taking it all apart?

    Thanks

    D Barnwell
     
  2. Yellowkayak

    Yellowkayak Popups.....when sleeping on the ground gets to you

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    Hi Chief!!!!

    As far as checking for mud dobbers, just bang on the side of the pup next to the vent...they won't attack you.

    Look at this photo of what I did to mine. Its a stainless steel vent plug I got at Lowes in the plumbing section. It fit perfectly. It keeps the buggers out really well.

    <img src="http://i24.photobucket.com/albums/c46/Yellowkayak/P5070033.jpg" border=0>


    I also placed vinyl window screening on the inside of my AC unit, the fridge vents and water heater vents.

    JJ

    Wichita Falls, TX
    USAF Retired
     
  3. theseus

    theseus Centerville, OH

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    I have the stainless steel mud dauber screens on my furnace and water heater... It's cheap insurance against having to have the stuff "repaired" to get them to run again....

    They are easy to install and you never remove them...

    I should also point out that other things love the smell of propane, too. Spiders are a good example... the screens keep them out too.

    ______________
    2004 Expedition
    2000 Palomino Mustang SL-SG-FT
    http://www.thecampingchild.com

    Edited by - theseus on May 07 2008 13:01:43
     
  4. becasunshine

    becasunshine New Member

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    Ok, this brings up a good point from elsewhere in the forum:

    Another member posted that he had a bee hive with a honeycomb <i><b>in his converter.</i></b> He was wondering if there was any way to salvage the converter.

    The consensus from other members was no, get another converter.

    We have never lost an appliance or tool to a nest of any type, but it seems that owning a PUP has made us vunerable to all sorts of nesting creatures: mice, etc. during the winter, another person had a problem with <i><b>spiders,</i></b> and now I'm reading that bees and their cousins can cause permanent damage by building hives in appliances.

    I have to admit, the idea of permanent damage didn't even occur to me.

    So, I guess mud dauber screens for vents and vented access doors are a good idea, huh?

    Him/Her Late Boomer Vintage
    Two Wonderful Sons, Grown and Out!
    One Non-Camping Cat
    2007 Fleetwood Rio "Matilda" <img src=../Images/icons/icon_smile_pu.gif border=0 align=middle alt="PopUp">
    2004 Toyota 4Runner "Joey 2" <img src=../Images/icons/icon_smile_suv.gif border=0 align=middle alt="Tow Vehicle">
     
  5. USAF Chief

    USAF Chief New Member

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    Thanks everyone for the help. I got a screen for it after seeing mud dauber's and some wasp's entering the vent.

    I was just concern if I have to operate the furnace would it cause any damage to the furnace if the nest was not removed?

    D Barnwell
     
  6. Yellowkayak

    Yellowkayak Popups.....when sleeping on the ground gets to you

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    Chief, not much would happen, it would bake the mud really hard...nothing will hatch from it. My only concern is did it plug up the exhaust? I'd get a coat hanger, flashlight, a good sucking vacuum cleaner, and look carefully, then put you screens on.

    JJ

    Wichita Falls, TX
    USAF Retired
     
  7. becasunshine

    becasunshine New Member

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    Chief, thank you for raising my awareness of this issue. Once I understood how serious this could be, I dropped everything and went to our RV dealership to buy a mud dauber screen for our hot water heater. (We don't have a fridge or a furnace.)

    I asked about mud daubers, wasps, bees, etc. in water heater vents, furnace vents, fridge vents, etc.

    I was told, as JJ says, that one of the hazards is that the exhaust on these appliances could become plugged.

    Per above, if the exhaust becomes plugged on items that burn propane, then carbon monoxide accumulation inside the camper becomes a hazard.

    If you see mud daubers and wasps entering the furnace vent, you must assume they are entering the vent for a reason. You need to make sure that the furnace is functioning correctly, that its exhaust is open and functioning correctly before you attempt to heat the PUP with that furnace. Be aware of the other propane appliances in your pop up- if the mud daubers and hornets have found your furnace they could also have found your other propane devices.

    In addition to making sure you don't have nests, insects and/or debris blocking the exhaust, you'll want to make sure that your carbon monoxide detector and your LP gas leak detector are functioning normally, and that you have fresh back up batteries for these alarms.

    When I got home, I Googled this topic on the internet, and this is what I found:

    <i><b>"One drawback to RV furnaces is their necessary connection to the outside for air flow. There can be either one or two openings to the outside. The biggest problem is this is prime nesting area for mud daubers, paper wasps and spiders. The wasps build nests on the fan blades and in the case of the smaller bugs all the way into the burner assembly. The only way to get them out is to disassemble the furnace and clean everything. This issue can also be caused by problems in the LP system or with the burner itself. Call for service. Do NOT try to flush the bugs out with water or high pressure air!!! This will drive the debris further into the unit and make it even harder to get it all out. Also, if itÂ’s not bugs but a bad burner assembly this will have no effect."</i></b> from Ken's Camper and RV Service

    I am not qualified to give an opinion on that advice, but I thought it might be useful to share the link. I don't know how to remove nests of any type from a propane appliance. I'd have to go to our RV dealership by default if I suspected a nest in our propane system.

    Again, Chief, thank you for raising my awareness.

    Him/Her Late Boomer Vintage
    Two Wonderful Sons, Grown and Out!
    One Non-Camping Cat
    2007 Fleetwood Rio "Matilda" <img src=../Images/icons/icon_smile_pu.gif border=0 align=middle alt="PopUp">
    2004 Toyota 4Runner "Joey 2" <img src=../Images/icons/icon_smile_suv.gif border=0 align=middle alt="Tow Vehicle">

    Edited by - becasunshine on May 07 2008 20:05:40
     

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