4100 vertical piping?

[iwantoburncorn]

I have some duravent from my pellet stove and was going to use it for my corn stove install, but I don't see anything in the manual about going vertical. They only show it going straight out the back. Can you go vertical with this stove?

[tfgrower]

[kspdr]

With positive draft motor (stock) you can go 18 feet, count each 90 degree elbow as 3 feet. You may have to readjust combustion air for best flame. This is for 3 inch exhaust.

[iwantoburncorn]

Ok cool. I'm only going about 6 feet so should be no problem.

[kspdr]

You may want to rig up a fresh air return for fresh combustion air to the stove. Stops the negative presure in the home. You will also want to be sure and use a wall thimble if not using a factory vent kit. If using factory vent kit but just extending it 6 feet up get some 5 inch vent pipe and fittings to match your 3 inch exhaust and install piece by piece over your 3 inch to fully encase your 3 inch exhaust. Also foil tape seams on 5 inch to prevent any exhaust smell in your home. High temp automotive silicone works on 3 inch tube.

[iwantoburncorn]

House was built in 1912, has original windows and no insulation. I think it might get all the fresh air it needs, I know I do...lol. It's also split face block so I'm not sure I'm going to use a wall thimble. I think it's zero clearnce on concrete, brick and morter. I guess I don't fully understand using the 5 inch over the 3 inch. How does that prevent exhaust smell? The chimney kit is Dura vent so it seals up pretty good I think. Maybe there is some exhaust pipe anatomy on the stove I'm not clear on. +2 on the silicone. I already made the sealant mistake when I went vertical with my pellet stove.

[kspdr]

Your house sounds like mine. We just warm the air as it passes through. You should be ok without the thimble.The stove will pull fumes back in the stove with the 5 inch over the 3, if there is a small exhaust leak. Keep in mind that the exhaust from burning corn won't hurt you it just has a smell that some find offensive. I personally like the smell you get outside from the stove, better than manure lol.

[tallcorn]

The theory is when your stove is blowing exhaust out doors that air going into the stove has to come from the outside. It may look like it is coming from inside the house but in the end it is still outside air leaking into the house. That is called "air exchange". A leaky house has more air exchanges than a "tight house". It's your decision, do you want to heat the air and cause more drafts and then blow it out through the exhaust or do you want to take air directly from outside through a fresh air intake thus not using heated air for burning and also reducing the "drafts".
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Countryside 3500P (pedestal version) used 8-9 yrs, 24/7 during days requiring heat. All original motors. Burns moldy corn, and pellets equally well. Burn it if you got it.

[iwantoburncorn]

So the 5" pipe is the cold air intake for the stove and the 3" rides inside of that? I didn't realise that. My manual doesn't state that.

I guess I need to disclose some history about this stove. I bought it at an auction. The elderly lady that owned it was standing right there before the bidding and she told me that her husband bought this stove in 2003 for their home but he passed away before he got a chance to install it and she never did get it installed. It's brand new otherwise and has never been burned in. The manual, starterthingy's and a piece of 3 or 4" flexpipe is all that she had with it. So I guess I need soem 5" material. Do yo ujust use regular stove pipe or is this something I need to get from Amaizablaze dealer?

[cowtrimmer]

I just bought some 5" galvanized pipe. It doesnt have to be the real heavy gauge stuff because it doesnt have direct contact with flame. I then ran 3" duravent pipe inside that. I then painted the 5" pipe black, just for ascetics. Of coarse on your 4100 all that stuff is hidden in the fireplace.

[tfgrower]

That is a beautiful piece of work you have done there cowtrimer
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Sometime times you win and sometimes you learn.

[tfgrower]

[kspdr]

Tallcorn and cowtrimmer, you guys are so much better at explaining things than I am. Thank You very much. I usually am able to just show customers things instead of trying to describe them.
Iwantoburncorn are you installing freestanding or as a insert? If freestanding I would really suggest the factory parts to go through the wall if at all possible. I just don't know of another way to use outside air for combustion. I use to have some used vent parts from customers converting to negative draft but have used all of them up. Was a good way to save people from needing to buy a vent kit when all they needed was the wall thimble for a basement install.
Maybe some other ideas guys?

[iwantoburncorn]

Yes I am using the stove as a freestanding. I wonder if I could use any walvent as long as it's 5" and just run the 3 inch through that.

[kspdr]

I would imagine that would work just fine. I would try to keep the 3 inch centered in the 5. You will need some hail screen or something over it to keep critters out and something to keep rain and snow from getting in. Moisture will make ash build up in the flue.