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Old 05-17-2018, 11:03 AM   #1
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Question Help! Mice Family in Furnace and ducts

I have a 36' Forest River Salem trailer that is on a permanent site. Our furnace stopped working so I called a service tech who came out and told me that he pulled a bag of dead mice out of the furnace. He got the furnace to work but said there was very little air coming out. Most likely there are more in the ductwork. Sadly, he said he does not do that work.

So......I cannot find instructions anywhere on how to clean/empty/replace the floor ductwork. Do you have to do this from underneath? This model has a bedroom in back (with 2 floor vents) and then a vent in 'den' and kitchen. It also looks like it is regular ducts (not the flexible hose).

Any help would be greatly appreciated. Even better, does anyone know someone who can do this for me? I can deal with many things but mice ain't my bag

The trailer is located in Edgerton Wisconsin.


Thanks!!
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Old 05-17-2018, 11:14 AM   #2
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I have a 36' Forest River Salem trailer that is on a permanent site. Our furnace stopped working so I called a service tech who came out and told me that he pulled a bag of dead mice out of the furnace. He got the furnace to work but said there was very little air coming out. Most likely there are more in the ductwork. Sadly, he said he does not do that work.

So......I cannot find instructions anywhere on how to clean/empty/replace the floor ductwork. Do you have to do this from underneath? This model has a bedroom in back (with 2 floor vents) and then a vent in 'den' and kitchen. It also looks like it is regular ducts (not the flexible hose).

Any help would be greatly appreciated. Even better, does anyone know someone who can do this for me? I can deal with many things but mice ain't my bag



The trailer is located in Edgerton Wisconsin.


Thanks!!
They are not designed to be cleaned/ emptied/repaired or replaced. You can try removing the vents and using an electricians fish tape and pull a rag of some sort thru the ducts. from one to the other.
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Old 05-17-2018, 11:16 AM   #3
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Crap! What do I do then? There has to be a way to push/pull them out. I don't want to push them into the furnace. Do I have to pull the furnace out and then push towards the vents?

Seems to me like I'm up that famous creek without that famous paddle.
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Old 05-17-2018, 11:20 AM   #4
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Crap! What do I do then? There has to be a way to push/pull them out.
use an electricians tape push it from one duct to the next. Attach some sort of rage ot towel that will fill up the duct and pull it back to where you pushed it in. Then move to the next one. You can call a mobil RV Tech. Maybe a local ac duct cleaning company.
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Old 05-17-2018, 11:21 AM   #5
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You can try Cutting a hole in opposite sides of a tennis ball big enough to accommodate the end of a shop vac hose and feed that into the duct work through a vent. The tennis ball should keep you from tearing the duct material. You can also try removing the duct from the furnace distribution box and do the same from that end.
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Old 05-17-2018, 11:26 AM   #6
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Because the underbelly of my rig peeled back while I was driving down to Florida, I pulled it entirely. I have since replaced most of the foil flex duct with rigid or semi-rigid. Much harder for mice to chew through.

You most likely have one or more holes chewed into your ducting, which is contributing to your low air flow. The foil flex is easily compromised.

I suspect that you could "clean" the ducts some what by just pushing the hose of a shop vac down them from the register and see what you suck out.

I've attached a couple of after pics of what I did. I used a lot of aluminum tape to seal all of the joints and bends. Total cost was under $100. If you do a search, SeaDog has posted on his work doing a similar modification. If you decided to do the mods, understand that rigid pipe will give the best airflow. Any type of flex pipe needs to be fully extended to give max flow.
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Old 05-17-2018, 12:05 PM   #7
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Because the underbelly of my rig peeled back while I was driving down to Florida, I pulled it entirely. I have since replaced most of the foil flex duct with rigid or semi-rigid. Much harder for mice to chew through.

You most likely have one or more holes chewed into your ducting, which is contributing to your low air flow. The foil flex is easily compromised.

I suspect that you could "clean" the ducts some what by just pushing the hose of a shop vac down them from the register and see what you suck out.

I've attached a couple of after pics of what I did. I used a lot of aluminum tape to seal all of the joints and bends. Total cost was under $100. If you do a search, SeaDog has posted on his work doing a similar modification. If you decided to do the mods, understand that rigid pipe will give the best airflow. Any type of flex pipe needs to be fully extended to give max flow.

Wow, nice work ! Too bad the factory standards arenít that way.
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Old 05-17-2018, 12:23 PM   #8
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Probably could call a duct cleaning service like Stanley Steamer or a place similar.
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Old 05-17-2018, 02:27 PM   #9
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Mice in Duct Work

As one, retired from the pest control industry, I would obtain the services of a professional duct cleaning service. Not sure of the situation in your area, but personally, I would have the ducts treated afterward with an anti virus solution to kill any unwanted diseases left by your friendly mice. Where I come from, Hanta Virus is prevalent, and is a killer of humans.

When the work is complete, screen off the heater vent, and any other potential entry locations.
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Old 05-17-2018, 02:27 PM   #10
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Thanks for all the responses. I was so looking forward to a nice weekend but I think I'm going to be a little busy.

I guess I'll bring a bunch of items up and see which one (or ones) will do the trick. How can such little creatures create such a big problem?
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