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06-17-2019, 12:27 PM
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#1
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Junior Member
Join Date: Aug 2018
Posts: 3
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Wasp Nest in TT Heater Exhaust Vent
Any tips on how you may have dealt with this in the past? My DH wants to spray it, but I am afraid there are more wasps farther down the vent than we can see. I really don't want them to escape into the trailer, in case the heater has openings wide enough for them to move through. I can see the nest through the faceplate of the vent. Wish I had put a screen behind it before Spring. Would it work to just turn the heater on to make them uncomfortable and drive them away?
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06-17-2019, 12:29 PM
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#2
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Senior Member
Join Date: Jul 2017
Posts: 4,031
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Quote:
Originally Posted by Utahn2018
Any tips on how you may have dealt with this in the past? My DH wants to spray it, but I am afraid there are more wasps farther down the vent than we can see. I really don't want them to escape into the trailer, in case the heater has openings wide enough for them to move through. I can see the nest through the faceplate of the vent. Wish I had put a screen behind it before Spring. Would it work to just turn the heater on to make them uncomfortable and drive them away?
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First KILL them . then fish out the nest . then fire up furnace . if it has problems lighting or staying lit then you'll need to remove furnace and look for more nests
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06-19-2019, 10:19 AM
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#3
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Senior Member
Join Date: Mar 2018
Location: Southern IL - across Mississippi from St. Louis
Posts: 105
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After you have killed them and eliminated their nest, go to your local RV shop and purchase one of those cheap little screens made specially for TT heater vents so they don't return.
__________________
2018 Flagstaff E-Pro 19FBS
2014 Chevy 1500
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06-19-2019, 10:29 AM
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#4
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Pickin', Campin', Mason
Join Date: Aug 2015
Location: South Western PA
Posts: 19,051
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Turning on the heater will certainly drive them out if they are in the exhaust and not the intake. Then you can remove the nest with a straightened coat hanger or something like that. They won't last long with the heat that comes out the flue pipe.
They cannot get into your R/V from the intake/exhaust. It is a sealed combustion chamber.
I have successfully sprayed them but I then waited a while for the spray to dry before firing up the furnace.
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2022 Cedar Creek 345IK 5th Wheel•Solar & Inverter•2017 Ford F-Series SCREW 4x4•Factory Puck•B&W Companion•TST Tire Monitor w/Repeater•Sinemate 3500w Gen.
F&AM Lodge 358 Somerset, PA - JAFFA Shrine - Altoona, PA
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06-19-2019, 10:30 AM
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#5
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Senior Member
Join Date: Jun 2016
Posts: 5,033
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If the wasps can get into your trailer, you need a new furnace. The burner compartment should be completely sealed and closed off from the trailer. Otherwise you will be exposed to carbon monoxide which can kill you.
If you really don't want to use wasp killer first, use a shop vac to suck them out of the vent. I'd do this at dusk so that they have all returned home. Be careful when you open up the shop vac! They won't be very happy.
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Al
I am starting to think, that I will never be old enough--------to know better.
Tolerance will reach such a level that intelligent people will be banned from thinking so as not to offend the imbeciles. Fyodor Mikhailovich Dostoevsky, Russian Novelist
S.E. Mich. Flagstaff 26FKWS / 2022 F-150 3.5 EcoBoost SCrew Propride
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06-19-2019, 11:25 AM
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#6
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Senior Member
Join Date: Jul 2017
Posts: 4,031
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I've seen wasp nest from the exhaust all the way through the combustion chamber into the combustion air blower wheel and all around the gas valve where a plastic ring around the gas line should prevent them from getting in the unit
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06-19-2019, 12:31 PM
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#7
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Senior Member
Join Date: Sep 2016
Location: ALASKA (World's Biggest Campground)
Posts: 6,594
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Quote:
Originally Posted by SailorSam20500
If the wasps can get into your trailer, you need a new furnace. The burner compartment should be completely sealed and closed off from the trailer. Otherwise you will be exposed to carbon monoxide which can kill you.
If you really don't want to use wasp killer first, use a shop vac to suck them out of the vent. I'd do this at dusk so that they have all returned home. Be careful when you open up the shop vac! They won't be very happy.
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If using a shop-vac, empty it first then place a few crumpled paper towels in the bottom and dowse them with "Bee Bopper". As soon as they hit the paper towels they are on their way to wasp heaven.
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'07 K3500 Silverado LT Crew Duramax (LBZ)
2016 Salem 27RKSS
1984 CHEV SCOTTSDALE K20 2GCGK24J0E1XXXXXX (Chevrolet Legends-Class of 2019)
"...exhaust fluid? We don't need no stinkin' exhaust fluid"
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06-19-2019, 12:58 PM
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#8
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Member
Join Date: Oct 2018
Posts: 32
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I would not use wasp spray. Most are petroleum based and even though that is an exhaust vent, the vapors will travel.
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06-19-2019, 07:53 PM
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#9
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Senior Member
Join Date: Jun 2016
Location: Maurice, LA
Posts: 4,095
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are they "Paper Wasps" who create lightweight paper like nests or "Mud Daubers" who create mud nests?
Paper Wasps can be cleaned out by lighting the furnace as suggested but Mud Daubers probably require removal and disassembly of the furnace.
On a previous camper I had a Mud Dauber nest on the squirrel cage on the blower. I had to disassemble the furnace to clean it out.
The addition of these screens has prevented them since.
https://www.ebay.com/itm/2-Pcs-2-8-B...a024116bea4432
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2012 Wildcat Sterling 32RL, Gladiator Qr35 ST235/85R16 Load rating G, TST 507 TPMS w/ Flow-thru Sensors & Repeater, Reese Sidewinder 16K Pin Box, PI EMS HW50C
2009 Chevy Silverado 2500HD CCSB LTZ Diesel, Fumoto Oil Drain Valve, Turbo Brake activated, 39 gal Aux Tank W/ Fuel Pump transfer, Air Lift Loadlifter 5000 air bags.
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