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View Full Version : Venting a Backwoods through the roof of an enclosed trailer


The Cosmic Pig
06-19-2011, 04:14 PM
I'd really love to see some pics and suggestions on this topic. Thanks!

TN_BBQ
06-19-2011, 08:07 PM
The optional butterfly valve on the BWS is designed for just such a thing. It would be a bit different for the standard "cap" style chimney (probably would want to get some sort of fan and a large funnel/vent to capture the smoke if using the cap style.

With the butterfly valves and they are pretty straightforward. Sorta looks like a stove pipe that connects the cooker to the roof.

Just be sure to take precautions about carbon monoxide. Seems there was a thread a while back about a fellow that had a nice setup (pipe, vents, fans, etc.) and still had an issue with carbon monoxide build up.

It's not an enclosed trailer, but I think you can sorta get the idea. I'll see if I can drum up or take some more pictures.

http://i49.photobucket.com/albums/f260/diet069/newsmokerMay2005-1.jpg

Sawdustguy
06-20-2011, 07:00 AM
IMHO, putting a cooker like that in an enclosed trailer is asking for trouble. It is a fire hazard and a carbon monoxide hazard. You can do what you wish but I wouldn't do it.

Slamdunkpro
06-20-2011, 08:57 AM
Don't do it. Backwoods and pretty much all cooker aren't air tight. They're going to expel CO from around the doors and from the vents into the enclosure even when the doors aren't open.

E Mellow
06-20-2011, 09:38 AM
We have a Comp Hog with butterfly vents mounted in our enclosed trailer. There are ZERO situations where someone is cooking in the trailer without proper airflow. We always have a combination of roof vents, doors, and/or vending windows open when cooking on it. We have it mounted inside due to our health department. Also having sinks, prep tables, and a fridge near by is nice. At a comp by the time we open everything up the trailer is close to being an open air trailer. When being towed and stored it is nice to be enclosed for better security and protection from the elements.

We had a friend make stacks that match the built in stacks of the cooker. We extended those directly up through the roof. Very similar to the picture posted by TN BBQ.

It can be done just be smart and safe.

The Cosmic Pig
06-20-2011, 01:40 PM
I totally agree about the dangers of carbon monoxide, etc. What I plan to do in this case, though, is totally isolate the cooker from the rest of the trailer, with an access door to the cooker from the outside. Actually, I plan to eventually mount two cookers in the trailer. What I am concerned about is water leakage around the stack where it exits the trailer. Also, the technique used for going through the roof. How about a flexible stack that sticks out the access door of the cooker compartment? Anybody ever do it that way? Thank you one and all for your thoughtful replies! BBQ'ers are the nicest folks in the world! That's one reason I love this hobby so!

JayAre
06-20-2011, 02:14 PM
I cook with my stumps inside my 12 ft enclosed trailer, I leave the back door cracked and vent the smoke through an aluminum flexible duct. If its not raining, i keep the top roof vent open and run a big fan to keep things moving. never have any problems with CO.

The flexible duct does tend to keep the moisture in, and yes it does leak out through the seams of the duct, but usually i just pour it out at one hour intervals and its not a problem.

Sawdustguy
06-20-2011, 03:09 PM
I cook with my stumps inside my 12 ft enclosed trailer, I leave the back door cracked and vent the smoke through an aluminum flexible duct. If its not raining, i keep the top roof vent open and run a big fan to keep things moving. never have any problems with CO.

The flexible duct does tend to keep the moisture in, and yes it does leak out through the seams of the duct, but usually i just pour it out at one hour intervals and its not a problem.

How do you know you don't have a Carbon Monoxide problem. Do you have a CO detector in your trailer?. CO is an ordorless and colorless gas, how would you know if you had a problem or not? There are a lot of varying symptoms to CO poisoning. Coughing is not the only symptom, you may not cough at all when exposed.

roksmith
06-20-2011, 03:24 PM
Might also want to check with the fire dept. If you're trailer is all metal I would think you'd be OK, but if it contains flammable materials there may be an issue.

Jacked UP BBQ
06-20-2011, 03:55 PM
You are asking for trouble. Fire, Carbon monoxide poisoning. It is a huge risk. DO NOT DO IT

The Cosmic Pig
06-20-2011, 06:38 PM
I do plan on the cooker compartment being all metal, and TOTALLY isolated from the front of the trailer - read caulk, insulation, additional exhaust fans, access doors that remain open, etc. I've seen something like what I want before, but I didn't know that's what I wanted at the time and didn't pay real good attention! I want a "stop and go" setup where I can basically park, open the door, and start cooking...rolling 350 pound smokers in and out of trailers just ain't my idea of having fun! Once again, thanks all!

JayAre
06-21-2011, 07:13 AM
How do you know you don't have a Carbon Monoxide problem. Do you have a CO detector in your trailer?. CO is an ordorless and colorless gas, how would you know if you had a problem or not? There are a lot of varying symptoms to CO poisoning. Coughing is not the only symptom, you may not cough at all when exposed.

Its been three years and Im not dead yet!!! lol, I know where you are going with the detector, just havent had any problems.:sick: no headaches, nausia etc) you are right though, CO detector would be a good idea.

The only time its a real issue is when the door is opened to check the meat, When the door is opened on the smoker, all the doors are opened on the trailer and it clears out pretty quick. Stumps are well sealed so when its just sitting there cooking, all the exhaust is vented out through the duct.

The Cosmic Pig
06-21-2011, 07:53 PM
Hey, TN BBQ...wished I had noticed your address sooner...I live in Louisville...the one in TN! What part of Knox you in? Maybe I could come by and take a gander one day! That's a NICE set-up you got there, neighbor!

TN_BBQ
06-22-2011, 05:45 AM
Hey, TN BBQ...wished I had noticed your address sooner...I live in Louisville...the one in TN! What part of Knox you in? Maybe I could come by and take a gander one day! That's a NICE set-up you got there, neighbor!

It's a beauty, but right now it is parked at a buddy's house in Memphis. :sad::icon_sad:Cry::cry:

I'm "making do" with just my BWS Party. :-P

The Cosmic Pig
06-23-2011, 09:01 AM
I hear ya, dude! You got any comps on the schedule in the near future?

TN_BBQ
06-23-2011, 02:27 PM
I hear ya, dude! You got any comps on the schedule in the near future?

Not really. I used to do the Blount County BBQ Bash (that was a couple weeks ago) and my friends want me to rejoin them for Memphis in May and a few other competitions, but I've sorta moved on from the competition stuff.

It's fun, but the kids are getting a little older and requiring a little more of my time (and then there is this special little black retriever that I fell in love with a few years ago that has become addicted to some of the AKC games :-P). Just not enough, time, money or energy to go around.

HawgNationBBQ
06-23-2011, 04:53 PM
You probably get the picture by now. In theory it sounds cool but you might not make it to the end of the competition with carbon contamination. It sounds similar to connecting a hose to your exhaust and closing your cars windows. Not a good outcome. May want to reconsider.

The Cosmic Pig
06-23-2011, 07:01 PM
Actually, no, I don't "get the picture," and I don't mean any disrespect with that comment. I have seen this done more than once. I would hope I'm not dumb enough to close myself into a trailer and die of carbon monoxide poisoning! Did anyone notice I said that the smoker would be TOTALLY ISOLATED form the rest of the trailer with its own access door, exhaust fans, etc??? I just want some advice on the area where the stack exits the trailer, specifically how to avoid water leakage around this orifice. There are restaurants that have smokers inside the building where people eat, and no one dies of carbon monoxide poisoning because they do it correctly. There are ways to do things SAFELY, if one is so inclined - and I am! Surely someone on this site has done it and has lived to tell the tale! :-D Thanks again!

The Cosmic Pig
06-23-2011, 07:35 PM
Not really. I used to do the Blount County BBQ Bash (that was a couple weeks ago) and my friends want me to rejoin them for Memphis in May and a few other competitions, but I've sorta moved on from the competition stuff.

It's fun, but the kids are getting a little older and requiring a little more of my time (and then there is this special little black retriever that I fell in love with a few years ago that has become addicted to some of the AKC games :-P). Just not enough, time, money or energy to go around.

I hear ya! I have a little one that is about to get old enough to join me for a competition or two! He'll be 4 next month! I hope to pass on to him what I learn, and maybe he'll take it and run with it - if he's interested, that is. I'm also saving my Fender "strat" guitar for him, but he's saying he wants to be a drummer! Go figure!
The BBQ Bash was fun, but it was way too hot this year! The saving grace was that we won 1st place chicken! If not for that, I believe I would have drove off and left my equipment there! :-P

Gerrit_Boys
06-23-2011, 10:44 PM
I want a "stop and go" setup where I can basically park, open the door, and start cooking...rolling 350 pound smokers in and out of trailers just ain't my idea of having fun!

Heck, it would take at least 2 1/2 of your cookers to get to what mine weighs, I have no problem with unloading mine and moving it around wherever I want. I do use a small winch to load it and it's something me and my 4 year old son do. Several people roll their smoker out on the ramp door supported be jack stands. If I was going to get serious about BBQ, I'd buy a trailer with a porch and put my stuff out there.:thumb:

The Cosmic Pig
06-24-2011, 09:49 PM
Heck, it would take at least 2 1/2 of your cookers to get to what mine weighs, I have no problem with unloading mine and moving it around wherever I want. I do use a small winch to load it and it's something me and my 4 year old son do. Several people roll their smoker out on the ramp door supported be jack stands. If I was going to get serious about BBQ, I'd buy a trailer with a porch and put my stuff out there.:thumb:


Here's the story: I do not like unloading and loading equipment. The last competition I did, the pavement was literally melting under our feet at load up time. The one before that, the gravel made it almost impossible to move the smoker once unloaded. Yes, you can take plywood and lay it down. Done it. Yes, you can roll it out on the trailer ramp. Been there, done that. This all comes with it's own set of problems. For example, trailer doors are made of wood. Backwoods smokers let burning embers fall out when you add charcoal, wood, etc. There are all kinds of things you can do to solve these problems, but I want competitions to be fun. I certainly wouldn't want to have to use a winch to load my smoker - that hardly seems effortless to me! I'm not understanding why everyone's encouraging me to do something other than what I want to do :confused: - heck, I ain't asking anyone else to pay for it or die from carbon monoxide poisoning! I'm just asking for advice on doing what I want to do! :roll:

bmanMA
06-24-2011, 10:28 PM
so get a good hood, with a butterly damper on the BWS (as mentioned), extend it to the rooof. get a carbon monoxide alarm where you plan to live. what else do you want? you need to do the arithmetic to ensure that you can move the proper volume of air. 'nuff said. it's on you, not us.

JiveTurkey
06-24-2011, 11:38 PM
Don't take it personal, people here are just looking out for you that's all. BBQ folks are cool like that. ;) If you ever get a chance to check out Jerry King's set up he did what you're thinking about. He has a 40' horse trailer with the back enclosed with a Jambo inside. Completely cut off from the front living quarters. It's a pretty simple process of just running a pipe to the roof and venting it out. Seal it up so it doesn't leak. Maybe even look up those exhaust hoods that are on many food trucks, looks like a big turban. Or a chimney cap to keep rain out. It doesn't sound hard to do. As long as you're not sleeping next to it you'll be okay. Take pics when you start the project. It might help someone else down the road. Good luck.

The Cosmic Pig
06-25-2011, 02:34 AM
We have a Comp Hog with butterfly vents mounted in our enclosed trailer. There are ZERO situations where someone is cooking in the trailer without proper airflow. We always have a combination of roof vents, doors, and/or vending windows open when cooking on it. We have it mounted inside due to our health department. Also having sinks, prep tables, and a fridge near by is nice. At a comp by the time we open everything up the trailer is close to being an open air trailer. When being towed and stored it is nice to be enclosed for better security and protection from the elements.

We had a friend make stacks that match the built in stacks of the cooker. We extended those directly up through the roof. Very similar to the picture posted by TN BBQ.

It can be done just be smart and safe.

What type of gasket material did you use around the orifice where the stack exits the trailer? Do you have any pics of this? If so, I'd love to see them! Thanks for your constructive, positive reply!

The Cosmic Pig
06-25-2011, 02:48 AM
Don't take it personal, people here are just looking out for you that's all. BBQ folks are cool like that. ;) If you ever get a chance to check out Jerry King's set up he did what you're thinking about. He has a 40' horse trailer with the back enclosed with a Jambo inside. Completely cut off from the front living quarters. It's a pretty simple process of just running a pipe to the roof and venting it out. Seal it up so it doesn't leak. Maybe even look up those exhaust hoods that are on many food trucks, looks like a big turban. Or a chimney cap to keep rain out. It doesn't sound hard to do. As long as you're not sleeping next to it you'll be okay. Take pics when you start the project. It might help someone else down the road. Good luck.

Thank you for paying attention to the fact that the smoker will be totally isolated form the rest of the trailer, but most of all for offering proof that this can be accomplished without killing yourself in the form of the actual name of the person that did it and lived to tell about it! :heh: I would love to contact this individual and ask him about the other important point you touched on - and the exact reason for my post - how to "seal it up" so it doesn't leak water. Do you know how I might do this (contact him)? I might have to do a combination of the things you mentioned, i.e. running the pipe up and out, with a chimney cap on top of that.
Thanks for your very constructive advice, Jive! I will do as you advise and share some pics when I get this thing going! :thumb:

The Cosmic Pig
06-25-2011, 03:21 AM
so get a good hood, with a butterly damper on the BWS (as mentioned), extend it to the rooof. get a carbon monoxide alarm where you plan to live. what else do you want? you need to do the arithmetic to ensure that you can move the proper volume of air. 'nuff said. it's on you, not us.

Let me explain in a little more detail what I'm doing. The smoker will basically be mounted in a "closet." This closet will be accessed from the outside of the trailer - not the inside. The access door for the living quarters, kitchen, whatever you want to call it, will be at the other end of the trailer, which will be about 10 feet away. The closet door will be open while the smoker is being utilized. (Actually, if you had a decent vent/fan setup you could even close the door!) The smoker will operate as if it were sitting out on the ground in the open air, because it basically is. Sound a little more logical and safe now?

JiveTurkey
06-25-2011, 03:09 PM
Thank you for paying attention to the fact that the smoker will be totally isolated form the rest of the trailer, but most of all for offering proof that this can be accomplished without killing yourself in the form of the actual name of the person that did it and lived to tell about it! :heh: I would love to contact this individual and ask him about the other important point you touched on - and the exact reason for my post - how to "seal it up" so it doesn't leak water. Do you know how I might do this (contact him)? I might have to do a combination of the things you mentioned, i.e. running the pipe up and out, with a chimney cap on top of that.
Thanks for your very constructive advice, Jive! I will do as you advise and share some pics when I get this thing going! :thumb:


I have no clue how you would get in contact with him. He was a regular on the BBQ comp circuit until he had a heart problem earlier this year. I did a google search for images but didn't find anything showing the trailer. I seem to remember his vented into the food truck type vent but how he did it I have no idea.

The Cosmic Pig
06-25-2011, 05:39 PM
I have no clue how you would get in contact with him. He was a regular on the BBQ comp circuit until he had a heart problem earlier this year. I did a google search for images but didn't find anything showing the trailer. I seem to remember his vented into the food truck type vent but how he did it I have no idea.


Thanks, JT! I'll continue to snoop around!

TN_BBQ
06-26-2011, 07:50 AM
Some of the ones you can find when you do an internet image search appear to have some sort of porch that holds the smoker. Check out commercial bbq trailers. The doors/walls seem to close for traveling and open for cooking. If they flip upwards, they could double as an awning for shade.

This one has a commercial hood/vent on it (look at the roof)

I could have sworn I saw on the BBQ Pitmaster TV show that LeeAnn Whippen had her smoker open in towards her kitchen prep area (sorta appears this one does, too)

http://www.mobilegrills.com/ConcessionTrailer/ForGN2.jpg

The Cosmic Pig
06-26-2011, 03:50 PM
Some of the ones you can find when you do an internet image search appear to have some sort of porch that holds the smoker. Check out commercial bbq trailers. The doors/walls seem to close for traveling and open for cooking. If they flip upwards, they could double as an awning for shade.

This one has a commercial hood/vent on it (look at the roof)

I could have sworn I saw on the BBQ Pitmaster TV show that LeeAnn Whippen had her smoker open in towards her kitchen prep area (sorta appears this one does, too)

http://www.mobilegrills.com/ConcessionTrailer/ForGN2.jpg

Wow! Now THAT'S a BBQ trailer! There are all kinds of ways to do what you want, and if you dig deep enough, someone's done EXACTLY what you (I) want to do! Thanks for the pic!

The Cosmic Pig
06-26-2011, 03:57 PM
IMHO, putting a cooker like that in an enclosed trailer is asking for trouble. It is a fire hazard and a carbon monoxide hazard. You can do what you wish but I wouldn't do it.

Hey, guy, I sent y'all an e-mail asking about your trailer to michele@2fatpolocks.com. Don't know how often you check your mail? Nice trailer!

Sawdustguy
06-26-2011, 06:47 PM
Let me explain in a little more detail what I'm doing. The smoker will basically be mounted in a "closet." This closet will be accessed from the outside of the trailer - not the inside. The access door for the living quarters, kitchen, whatever you want to call it, will be at the other end of the trailer, which will be about 10 feet away. The closet door will be open while the smoker is being utilized. (Actually, if you had a decent vent/fan setup you could even close the door!) The smoker will operate as if it were sitting out on the ground in the open air, because it basically is. Sound a little more logical and safe now?

Since you are the one who has to live with this you don't have to convince us. There are some of us who think what you are doing is not safe but you are going to do what you want no matter what we say. Having posted my opinion my conscience is clear. I really do hope it works out for you.

Sawdustguy
06-26-2011, 06:52 PM
Hey, guy, I sent y'all an e-mail asking about your trailer to michele@2fatpolocks.com. Don't know how often you check your mail? Nice trailer!

Thank you. We started by wheeling an 850 lbs large spicewine up and down the ramp. I won't mention that the first time we used the trailer the large spicewine broke loose and bent our 3 bay sink into a V. Then we moved to a 600 lbs medium spicewine. Now we travel with a Lang 84 deluxe or WSM's.

The Cosmic Pig
06-26-2011, 10:04 PM
Since you are the one who has to live with this you don't have to convince us. There are some of us who think what you are doing is not safe but you are going to do what you want no matter what we say. Having posted my opinion my conscience is clear. I really do hope it works out for you.

This answer was specifically for, well, whomever it was I quoted. I'm not trying to convince anyone of anything, I assure you. I had two choices in the matter. Well, actually three: 1) I could have said nothing, but that's just not in my nature. 2) I could try to explain myself to someone that obviously thought I was stupid, and basically implied it when he said "it's on you, not me," and then let it go, or 3) I could cuss someone out that implied I was stupid, because I am not, and I don't appreciate the implication. As I am trying to live a Christian life, I chose option #2. To further expound on the subject, I'm a 53 year old man that has worked in high voltage all his life, and has also either been responsible for the safety of others that work with high voltage, or has supervised others that work with high voltage. I am in a business in which, if you do something stupid, you don't live to see your family again, or you get someone else killed. I don't take any of these responsibilities lightly. I also try very hard not to do "stupid" in all the other segments of my life as well. Several people have offered very constructive advice up to and including the names of people that have done EXACTLY what it is I want to do. If you do a Google image search on "competition BBQ trailers," - which someone else mentioned in another thread on this very forum - you can see many EXAMPLES of what I'm wanting to do. Did I say something at some time that led y'all to believe that I, unlike the other people that have done this, was too stupid to do it myself or something? I'm starting to get that feeling, for lack of any other explanation. But if I do build this trailer and die, I promise I won't hold it against you or anyone else. :-P

The Cosmic Pig
06-26-2011, 10:43 PM
Thank you. We started by wheeling an 850 lbs large spicewine up and down the ramp. I won't mention that the first time we used the trailer the large spicewine broke loose and bent our 3 bay sink into a V. Then we moved to a 600 lbs medium spicewine. Now we travel with a Lang 84 deluxe or WSM's.

Bummer on the "v!" I'm personally all about convenience and making it fun, and that's why I'm looking for "a better way." :-P

Greendriver
07-09-2011, 04:54 PM
fixen to get some mods done on my trailer and it's a 34ft toyhauler with 18 ft liv qtrs and 15 ft garage. I'm like the orig poster in that I want to arrive at site and start cooking - no unload, load, etc. Sharing some of my thoughts with a trailer builder guy and he thinks he can add an additional regular rv vent (no fan) with the reg rv hood on the roof and build a metal box with appropriate hole for type vent used from cooker to box and attach that box to the rv vent in the cieling, this way we won't have to come up with a make shift non rv roof cap. Also suggested to use a piece of the tread plate to build a ft ledge / drop down from the ceiling with a lip on it to trap any residual smoke from travelling toward front of trailer (prep table) to give the other rv vent (with fan) time to remove smoke (I believe smoke still rises). I will have a co detector both in the front liv qtrs and in the rear (kitchen). I'm only back there a few min at a time as I prep meat before leaving for comp but even if I didn't I could prep in liv qtrs. I haven't done anything yet but this will be well thought out and I will cook back there - will make pics when it happens and share. I don't mind loading and unloading and in fact didn't mind it when I had a Stumps Platinum and used a wench. What I mind most is POPUPS or cooking in wind and rain - HELP ME GET INSIDE PLEASE.