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Old 06-20-2019, 11:01 AM   #1
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What's your thoughts on this saw dust in the propane heater?

Hello,

Took delivery of our Grey Wold 23DBH this week. Since this is NOT our first camper from FR I had no illusions of quality and craftsmanship. I spent the better part of two days correcting wiring, tightening fittings, reattached graphics and the usually fun stuff.

I noted while crawling around under the sink there was A LOT of saw dust everywhere so I did some vacuuming...then I noted they did much cutting AFTER the heater went in. See the attached photo of the rear of the heater with the cooling vents and all the saw dust in there.

Thoughts?

Is this area not much a concern to have combustable world product around the outlet pipes or is this in direct contact with the exchanger/flames...or is that all sealed for safety?

It wouldn't be easy for me to get it out and I'll be taking the trailer back in a month (1 hour away) for brake adjustments as they are basically useless at +10 on the gain.

Thanks for any real world experience/expertise I what I'm looking at.
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Old 06-20-2019, 11:11 AM   #2
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I wonder if you could get in there with a crevice attachment, maybe a computer vacuum attachment set?
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Old 06-20-2019, 11:17 AM   #3
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I wonder if you could get in there with a crevice attachment, maybe a computer vacuum attachment set?
Thanks. I had a pretty good, small and focused vac but it didn't have the pull. But I have seen those smaller computer ones...but I doubt it would have the suction to pull that far away. It really seems to need opened up.

I won't be using the furnace any time soon but I was concern about that sawdust and anyones expertise.

When we get back from our vacation next week I'll see about how to remove that unit. I'm sure the dealer will be reluctant todo it!
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Old 06-20-2019, 11:20 AM   #4
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Thanks. I had a pretty good, small and focused vac but it didn't have the pull. But I have seen those smaller computer ones...but I doubt it would have the suction to pull that far away. It really seems to need opened up.

I won't be using the furnace any time soon but I was concern about that sawdust and anyones expertise.

When we get back from our vacation next week I'll see about how to remove that unit. I'm sure the dealer will be reluctant todo it!
The computer vac attachments that I had actually connected to a conventional vacuum hose and suction was pretty good. Don't know if you thought I was speaking about a small vacuum unit...
This one exactly...
https://smile.amazon.com/Schneider-I...s%2C557&sr=8-3
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Old 06-20-2019, 11:33 AM   #5
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Doesn't matter what brand, model, where or time of day it was made. Sawdust all over is standard. Maybe it's a RVIA requirement...

Furnaces have an air intake and combustion exhaust on the exterior so there's no way sawdust can get inside the combustion chamber. No worries but regardless, I'd suck it all outta there. Looks like that round thing on the right in the photo is a block-off plate. They just rotate off/on.

On the brakes, on our first TT, a Coachmen Catalina, the brakes never worked properly from day one. Kept sending emails to the dealer and all they did was blame our brake controller. We bought a nice Prodigy P3 and it made no difference. After many, many emails to the dealer and numerous phone calls and several in person discussions at the dealer, they finally agreed to take the drums off and see what was going on. They found blown seals on all 4 wheels, warped drums, and shoes soaked in grease. After rebuilding it all, the brakes worked great.

You might consider pulling one or more drums off yourself and seeing if something isn't right. You also want to ensure all 4 wheels are braking and if maybe a wire is severed.

FWIW, I'm old enough to remember when many house here (Vancouver BC) had furnaces that ran on sawdust. A great big truck with a blower would go to your house and fill a big bin in the basement. Sawdust was readily available because there were a lot of sawmills along the waterfront complete with beehive burners. Eventually they realized burning all that sawdust was the cause of the pea soup fogs we used to get and they banned the burners. Today the waterfront is full of ultra high-priced condos.
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Old 06-20-2019, 11:46 AM   #6
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If you have to do all that with a brand new rig that speaks volumes about your "dealer".

My dealer has two teenage daughters that do all the inside cleaning. He calls them the sawdust patrol!
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Old 06-20-2019, 11:48 AM   #7
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Originally Posted by myredracer View Post
Doesn't matter what brand, model, where or time of day it was made. Sawdust all over is standard. Maybe it's a RVIA requirement...

Furnaces have an air intake and combustion exhaust on the exterior so there's no way sawdust can get inside the combustion chamber. No worries but regardless, I'd suck it all outta there. Looks like that round thing on the right in the photo is a block-off plate. They just rotate off/on.

On the brakes, on our first TT, a Coachmen Catalina, the brakes never worked properly from day one. Kept sending emails to the dealer and all they did was blame our brake controller. We bought a nice Prodigy P3 and it made no difference. After many, many emails to the dealer and numerous phone calls and several in person discussions at the dealer, they finally agreed to take the drums off and see what was going on. They found blown seals on all 4 wheels, warped drums, and shoes soaked in grease. After rebuilding it all, the brakes worked great.

You might consider pulling one or more drums off yourself and seeing if something isn't right. You also want to ensure all 4 wheels are braking and if maybe a wire is severed.

FWIW, I'm old enough to remember when many house here (Vancouver BC) had furnaces that ran on sawdust. A great big truck with a blower would go to your house and fill a big bin in the basement. Sawdust was readily available because there were a lot of sawmills along the waterfront complete with beehive burners. Eventually they realized burning all that sawdust was the cause of the pea soup fogs we used to get and they banned the burners. Today the waterfront is full of ultra high-priced condos.
Saw dust furnace...I guess that was the grandaddy of my pellet stove at home....which I love!

Thanks for the clarification on the dust in there. I felt it was in a mostly safe area but as you said...it needs cleaned. I'll see about getting a more pointed suction tip like the computer option mentioned that attaches to my larger shop vac. Could have 101 uses for that.

My brakes are engaging and the server admin was helpful. He took it for a spin and eventually he agreed with me when pressed. I think he was trying to feel out if he could BS me on it. They couldn't get me in the day of delivery (boo!) and I didn't want to wait around for 4 hours even knowing an inspection would have taken 30 minutes...so he wrote a ticket for them to pull them apart for review. He said he's seen them not all working on many occasions or the auto adjustment not working. You could hear them engage and make nosie/drag when trying to hold at idle. But as stated when at 10 on the gain it felt like a 2 (barely grabbing) on my last RV...something is very much off. I'd say they are working 50% which is good enough for me as my F150 has new rotors/pads all around and some safety brake checks on the right how showed them to be more then powerful enough.
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Old 06-20-2019, 11:50 AM   #8
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If you have to do all that with a brand new rig that speaks volumes about your "dealer".

My dealer has two teenage daughters that do all the inside cleaning. He calls them the sawdust patrol!
So far I like this dealer and drove an hour for a better deal because the two dealers in my back yard were garbage post sale. It was washed and detailed very well but yea...nobody was crawling in cabinets. They did replace decorative terminations that were bad/dented w/o my prodding so that was a minor win!

The service manager who reviewed my brake concern said..."well you obviously be back for warranty work...so let's address it when you make your appoint for other issues". That is not encouraging to any buyer of anything but at least he's realistic!
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Old 06-20-2019, 11:52 AM   #9
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Tape a large McDonald's straw to a crevice tool.
Use vacuum.
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Old 06-20-2019, 12:00 PM   #10
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A good shop vac should do it. I have a 6 hp 16 gallon shopvac that will suck a basketball through a garden hose.


I really need to check mine as every time I haul somewhere I have a tiny pile of saw dust
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