And YES it failed while burning. The collar broke and the 6" single wall pipe collapsed onto the floor. So Lucky i was home to carry the burning logs across the living room, over the dog, and out onto the lawn. I had no idea that the corrosion was there. The rest of the stove was in Mint condition even after burning every day in winter for 15+ years. The stove is in a large fireplace so i don't think the house would have burned down. But the smoke would have been a nightmare and The Dog? well i can't even begin to think about that.This is what happens if water drips onto your stove by the outlet pipe and collar. Wet ash and creasote is highly corrosive.
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I missed the aluminum pipe extension. That is not acceptable. Stainless should be used for wood fire, especially outdoors exposed to the elements,As I recently extended the cimney / flue with a piece of aluminium pipe to have the chimney extent above the roof top,
Nobody else thinks that wood and carboard box is way too close to the stove?Hi again,
I did some MC measurements today. After splitting some logs MC (moisture content (w) relative to wet total mass) reads 16 - 19%. According to my book this should be sufficiently dry to burn. I discovered that some bark is much wetter, up to 30%. Just below the bark it reads < 20%.
I cleaved a lot of bigger logs in many small pieces which I placed close to the side wall of the stove to dry. MC dropped at the surface from 16% to 10% after 1 day of drying (and using the stove), but when splitting these small laths again the core is still at 16%.
But today I tested the stove again by using these pre-dried laths (ash). I was surprised to see a very fast rise of temperature: yesterday I needed roughly 1.5 hours to get it at 540F (stove top temperature), today it took about 10 mins or less. (I didn't measure it but is was very fast). This seems similar to my personal record of 8 minutes using 10-11% MC pine wood laths.
The first reload at 500-540F was without any detectable smoke. (!) I refilled with wood that was not pre-dried indoors, but there were not any smoke issues.
It seems that indoor pre-drying the laths makes a big difference. Even though just the outer area has a lowered MC, this makes a huge difference. It seems especially important for the first load (startup).
From now on, I will keep more wood in my living room to pre-dry, and I will always keep 1 batch pre-dried for the first fill / startup of the stove.
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I am very interested with this fascinating thread because "outside of the rain water" dripping---this stove lightening sounds exactly like mine...I have only used my stove about four times or so--a very new burner here a old woman who is afraid of this type of activity--lol--but I cannot get the temperature up high enough with my stove and the start up is fine for I loaded three 16 inch oak splits that is kiln dried from GA and my moisture meter says 10 % after a lot of jumping around with drills ( I did not know how to use) and 1/16th thing a jig to make small holes so that I can take the moisture readings (four prong thing--terrible) and usually I have to hammer it in with a cloth over the gadget top---so you see how trustworthy this might be but I am learning but your situation sounds exactly like mine and i have to leave it open awhile just to get up the flame then I shut it and have to leave the air adjuster knob on full open for it to continue to burn not getting up to 400 very quick with really no heat...maybe its my loading--new at this and the mixed wood registering about 18% moisture is worse...So I am enjoying your thread and we will just hang in there and I am looking for a air cleaner just in case I am getting smoke which I do not see at this stage of burning only in the fire box when I open it but my stove window get dirty which is a drag...thanks for your posting and everybody the knowledge is wonderful and these problems will be solved in time...I hope... Last night the outside temp was 31 degrees and the wind was blowing and my state is dry dry dry with a very high attitude--and I live in the mile high city..clancey
Thanks for your warning. I'm in the process of returning the top part as it isn't rain-proof, so I can add 1 meter of stainless steel flue pipe. Would it be a good idea to extend the chimney, with a current vertical total length of about 5.5 meters, to 6.5 meters? I find it difficult to tell if there was an improved draft when using the 70 cm aluminium extension pipe. But adding 1 meter will make the top of the flue extend above the highest part of the (flat) roof. At the moment, without the extension pipe it is about 10 cm below the highest point of the roof. (but the chimney is about 1 meter away from the top of the flat roof)I missed the aluminum pipe extension. That is not acceptable. Stainless should be used for wood fire, especially outdoors exposed to the elements,
Are you noticing different draft with different wind directions?Thanks for your message Clancey! Did you make any progress on your smoke issue?
Last weekend I installed a 70 cm extension flue pipe (again), and a different cap. Last weekend wind force was 2-3 Bft and there was a much stronger draft then before. So it seems my conclusion that extending the chimney didn't improve draft was wrong. There were no smoke problems at all this time.
Today wind force is 0-1 Bft. It is much more difficult to start the fire and the flames keep orange coloured, despite both air inlets fully open. It is still burning well after a bit more startup time. At some places I read about not starting your stove at windspeeds below 2 and 3 Bft. Any ideas about this? I never burn when it is misty outside. But today it is sunny and a clear sky.
Good to hear; some progress.
I do burn also when there is no wind, or when there is "a quiet dog". No difference here in draft. However, if there is smoke, such weather can lead to the smoke hanging low, due to an often present inversion layer. That's not nice for the neighbors which may be the reason for the advice you got.
I try to log it, as soon as I have an idea I will post it!Are you noticing different draft with different wind directions?
Yup the single wall will rust, you will have to replace it every few years, not a huge deal, but it can very dangerous if you don’t notice the rust and it’s strength gets compromised. The even bigger concern is water onto the stove collar.Hi,
it has been much colder the last days, it is freezing now outside. It hasn't been raining the last days. But I hear a lot of water dripping in the cap of the t-piece. (bottom of flue). Tonight there was about 5 millimeters of water in the cap of the t-piece. (bottom end of flue). As the bottom cap isn't 100% waterproof, some rust-brown water dripped on the floor below.
This dripping is happening at least for a few days already. I tested the chimney cowl (the piece from a picture in my previous post), which I suspected from leaking rain, but when putting a lot of water from above it with a watering can, no water gets in the cowl. So the previous experienced water was either rain water or condensation water or both. But I'm sure the current water problem is from warm indoor air which flows through the chimney upwards and condensates against the cooler liner.
I'm just wondering if this to be expected and normal and acceptable? To me it sounds logical, but not practical as I'm always a little afraid of rust inside the single walled steel flue pipe (t-piece, the rest of the flue is stainless steel).
Hi, I didn't use the stove for the last few days, so it must be from condensation?I doubt the water is from just condensation, the heat from the fire will boil out, evaporate the moisture, even rain.
Possible, but unlikely, unless the interior humidity is >85%.Hi, I didn't use the stove for the last few days, so it must be from condensation?
Possible, but unlikely, unless the interior humidity is >85%.
Sorry, I lost track of the thread, it has gone on for a bit and I missed the last update. It could be condensation, especially if another single-wall pipe was used for the extension instead of chimney pipe.I am sorry, but when there is no rain and no fire, it can only be air leaking out if the home thru the pipe, and its water condensing on the cold surface..?
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