venting pics

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chrisasst

Minister of Fire
Aug 13, 2008
1,289
cortland ny
from what you can see in these pics, and your expertise. Do you see anything that could cause poor burning issues? I believe this is a 4" pipe...
the pics show the pipe coming from my stove, into a 45 degree then straight out my wall.



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The only problem that might cause is if the "horizontal" portion (in this case the entire vent run) does not have a rise in it of at least 1/4" per foot or it is plugged with ash.
 
SmokeyTheBear said:
The only problem that might cause is if the "horizontal" portion (in this case the entire vent run) does not have a rise in it of at least 1/4" per foot or it is plugged with ash.

Really!? I have two stoves installed in this fashion that I've not had any such issues with. Actually, I've had stoves installed in a number of ways over the years and I have never seen a "blockage" due to ash. One caveat is that I clean the entire airway of my stoves at least twice a burning season. Even at that I don't see more than a 1/8" build up at any point in the venting.

Curious, how would you put a 1/4''/1'-0" slope in this type of stove pipe without bending it or stressing the joints? My total length is just over 5' per stove that would result in 1 1/4" rise and I don't see how you would accomplish that without bending a joint somewhere.
 
Rooscooter said:
SmokeyTheBear said:
The only problem that might cause is if the "horizontal" portion (in this case the entire vent run) does not have a rise in it of at least 1/4" per foot or it is plugged with ash.

Really!? I have two stoves installed in this fashion that I've not had any such issues with. Actually, I've had stoves installed in a number of ways over the years and I have never seen a "blockage" due to ash. One caveat is that I clean the entire airway of my stoves at least twice a burning season. Even at that I don't see more than a 1/8" build up at any point in the venting.

Curious, how would you put a 1/4''/1'-0" slope in this type of stove pipe without bending it or stressing the joints? My total length is just over 5' per stove that would result in 1 1/4" rise and I don't see how you would accomplish that without bending a joint somewhere.

You have a 5' horizontal run?
Eric
 
firewarrior820 said:
The pipe looks to low to the grade ?

I'm not an expert in horizontal venting but I also wondered if that exhaust was as low as it looked. A small snow drift could easily block it and put carbon monoxide into the home.
 
tjnamtiw said:
firewarrior820 said:
The pipe looks to low to the grade ?

I'm not an expert in horizontal venting but I also wondered if that exhaust was as low as it looked. A small snow drift could easily block it and put carbon monoxide into the home.
only happen if you modified the stove/ ie bypassed the flow switch(either vac or pressure..they are there for a reason.)
 
You also might want to seal around the seams of the pipe with RTV.
 
Chris, I'm not a big proponent of just a horizontal install as long as the pipe you have there is kept clean.....I don't think it should cause any major problems.

However, with that said, I think you WILL get a better burn (draft) by adding at least 4' of vertical pipe on the outside.
 
kinsman stoves said:
Rooscooter said:
SmokeyTheBear said:
The only problem that might cause is if the "horizontal" portion (in this case the entire vent run) does not have a rise in it of at least 1/4" per foot or it is plugged with ash.

Really!? I have two stoves installed in this fashion that I've not had any such issues with. Actually, I've had stoves installed in a number of ways over the years and I have never seen a "blockage" due to ash. One caveat is that I clean the entire airway of my stoves at least twice a burning season. Even at that I don't see more than a 1/8" build up at any point in the venting.

Curious, how would you put a 1/4''/1'-0" slope in this type of stove pipe without bending it or stressing the joints? My total length is just over 5' per stove that would result in 1 1/4" rise and I don't see how you would accomplish that without bending a joint somewhere.

You have a 5' horizontal run?
Eric

Yea....There is a 1' on the stove, a 45° and 4' through the wall to a downturn vent cap so altogether about 5' of run. I have two stoves installed this way. I've seen no unusual build up of ash in the pipes and the air seems to move through the stoves just fine. Code in my area requires 1' clear below the pipe termination.....I have about 16" on the upper stove and 19" on the lower one. The termination is 3' from the wall face and at least 5' from operable windows and other air intakes.

When I was having them installed the installers suggested putting 4' of rise along the exterior wall to improve the "chimney effect" however my neighborhood convenance wouldn't allow it on the upper install because it would be visible from the street.
 
I would be very uncomfortable with a vent like that. Its almost on the ground, a good snow storm and hello carbon monoxide, or a heavy wind and the exhaust will go back into the stove. I think if it came out on an angle then up your stove would be one happy camper. Venting in that way does work, some say it works well , no problems, but I'd avoid that method at all cost. The safety of you and your family is well worth a few extra bucks to run it out and up.
 
Nicholas440 said:
I would be very uncomfortable with a vent like that. Its almost on the ground, a good snow storm and hello carbon monoxide,

only happen if you modified the stove/ ie bypassed the flow switch(either vac or pressure..they are there for a reason.)
 
I had the same exact configuration for 14 years, except mine was 7' off the ground, your's is way too close to the ground and I doubt meets any manufacturers or code.
 
Do I need a clean out thing at the bottom, or can I just 90 it up?
 
Mine is vented horizontal and i have no issues with wind or performance. Mine is 4 feet off the ground and your's is way to close to the ground. I'd place a cleanout there and then rise up at least 3 feet.
 
not sure what others think, but it looks to me like you have a lot of ash or soot behind your unit, and the piping is dirty on the inside of your house. Plus, it looks like you just punched a hole through your wall with no protection for your oak kit...what does that look like from outside?

I also agree that you are way too close to the ground. How far above ground outside are you? 12 inches? Less? If your house goes up your insurance won't cover you with an improper installation like that!
 
chrisasst said:
Do I need a clean out thing at the bottom, or can I just 90 it up?

A cleanout T on the outside, as shown in kinglew's pic above is highly advisable. Eliminates the need to take the pipes apart for cleaning. There is even a 2-way "T" that allows cleaning in both directions.

Chris, if you do decide to update your vent as mentioned here, give Eric at Kinsman a call about pipe prices....he'll give you a good deal as long as you mention you're a Hearth.com member.

330-448-0300

www.kinsmanstoves.com
 
Well, I went to HEP sales and got some pipe. They said it is stove pipe. it is galvanized pipe. http://www.graymetal.com/ It is single pipe with no inner liner. They said this can be used for outside stove venting.
I got 4" which was not a tight fit, so I went back and got 3". I haven't tried the 3" yet, but that looks too small. So I don't know, guess I will have to try that tomorrow.
 
Chris, hate to say it, but you need to get the right pipe. The pipe you have already is Simpson DuraVent....you need the same pipe, even on the outside.
 
this is from ventingpiping.com,

4" Pellet Chimney Increaser Tee with Clean-Out Tee Cap
Our Price: $73.30
4" x 60" Type L Pellet Vent Double Wall Straight Pipe Length
Our Price: $59.23
Simpson Dura-Vent 4PVP-E90
4" Pellet Chimney Stainless Steel 90 Degree Elbow
Our Price: $67.61


= 200.14 plus any shipping, so unless Eric would give me an incredible deal, I guess I will have to forget it for now..
 
chrisasst said:
= 200.14 plus any shipping, so unless Eric would give me an incredible deal, I guess I will have to forget it for now..

Well, I'd give him a shout anyway and ask......you never know.

Also, keep an eye in CL for pipe....I see people selling it quite often around here.
 
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