Interior through wall tee

[LarchLurch]

Hey all,
I am slowly building a 1500 sq ft ranch style house with a Drolet Escape 2100 in the basement. The overall stove/chimney pipe length is around 27 ft from the stove top straight up. Following @begreen's "Starting a fire and running an EPA stove" steps with dry wood (~17%), there is still a small window for control and it likes to spike in temps sometimes. I have yet to do a true full load yet because of it. It sounds like these Drolet's are easy breathers and I am sure my chimney length and house location (middle of a field Northern WI) are no help to this situation either. Adding a damper has helped, but I am curious if there is anything else I can do?

Adding to the learning curve, we will be finishing off the basement this fall/winter and I am wondering if it is possible to change my current setup into running a through wall thimble on an interior wall and then up. Overall this helps with the layout of both rooms that would be impacted. Any tips or tricks? Will adding this 90 and some horizontal help slow down the draft? Wouldn't have a tee on the inside make it even easier to clean the chimney pipe? I have included a picture of what I am planning on doing .

Thanks for all that you guys do, I have learned a ton over the years

 

[begreen]

Yes, this will slow down the draft, but not ideal and expensive. A second damper would be less so.

 

[stoveliker]

I run a similar set up, same height, horizontal run through the wall. (Lined masonry outside, not class A.)
My stove is not an easy breather, but it runs perfectly. Meaning that it might still be too much for your situation. Of course this depends on more factors, but still.

So yes, it'll likely help reduce draft, but the point is that it is a fixed solution, not tunable. You may want to be able to choke some draft when it's cold and less so when it's not as cold. Dampers provide a control that a different piping does not.

 

[LarchLurch]

Thanks for the responses. Mainly looking at making the change due to room layouts. I was a little off on my original design... Ha
The drafting was mostly secondary, and it sounds like it is doable, but not ideal which makes sense.
Last winter was a pretty warm one and I am curious to see how hard this thing will pull when it gets in the negatives...
Plan on purchasing a manometer to get some numbers on the draft

 

[begreen]

Plan on purchasing a manometer to get some numbers on the draft

It needs to have a low reading range. Something like 0 to .5" is a good range, but 0 to .25" is better. Dwyer makes affordable units and sometimes good deals show up on eBay too.

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[LarchLurch]

So update on my setup. Have not made changes to stove, still have 27ft straight up from the basement. I have purchased both an Auber temp probe and Dwyer magnehelic gauge. I have installed the temp probe, but not the the magnehelic. I have also blocked the secondary intake about 25% to slow the draft down on the other end. The probe has been handy and I have had a few good burns with it, but have a few questions. First, i have been been playing with a cigar burn on reloads to extend the burn time, is this a bad idea? It seems that it always causes a spike in temperature about and hour after I have closed (~25% open still) the primary air and closed the flue damper to the level I think is appropriate (at least a 45 degree angle up to a full close). Secondly, I have been playing it safe still while burning just in case of a runaway, but am curious if I should be shooting for higher flue temps initially and then try to shut things down from there. Both pictures are hot reloads, pic 1 it was 10 degrees with no wind and damper completely shut, pic 2 is 20 degrees with 10ish mph wind and damper at 45 degree angle. Thanks for all the help

 

[begreen]

The spike you are seeing is at the peak outgassing of the wood with maximum secondary combustion. A peak fle temp reading in the 600-700º range is fairly normal.

What app is recording the input temps and alarm settings for the Auber?

 

[LarchLurch]

It is their Auber Wifi app. Mixed reviews on it so far. Awesome when it works, but does have some issues with maintaining connection when needed. Overall it is really helping me understand the burn cycle when I am not able to enjoy sitting beside the fire.

 

[begreen]

It is their Auber Wifi app. Mixed reviews on it so far. Awesome when it works, but does have some issues with maintaining connection when needed. Overall it is really helping me understand the burn cycle when I am not able to enjoy sitting beside the fire.

I'll have to check this out. Does this work only with specific model Aubers?

 

[LarchLurch]

I'll have to check this out. Does this work only with specific model Aubers?

I am not sure, I do know they sell the wifi controller on its own... I will admit that I felt like the extra cash for the preassembled unit was a fair trade off for convenience factor

 

[begreen]

I am not sure, I do know they sell the wifi controller on its own... I will admit that I felt like the extra cash for the preassembled unit was a fair trade off for convenience factor

What Auber controller is installed on this system?

 

[LarchLurch]

What Auber controller is installed on this system?

The controller is the AW-SYL-2352. As I said earlier still mixed reviews on its performance so far. The graph is an amazing feature, but I have noticed that the time of burn has been off or shifted by up to an hour