Are you sure the creosote build up is because of the stove? The Oslo is a very clean burner if it has dry wood and is burned hot enough. Seems like there may be other factors involved.
BeGreen said:Are you sure the creosote build up is because of the stove? The Oslo is a very clean burner if it has dry wood and is burned hot enough. Seems like there may be other factors involved.
That's too much of a generalization. My new Oslo does not need to have the door left open at all on startup with dry wood. I can light the newspaper or SuperCedar and close the door immediately, and get a roaring fire in no time. If the wood is dry, and I'm not trying to run the stove full out, shutting the air all the way down works great, and does not smoulder it at all. So, perhaps it depends on the particular installation, and perhaps it depends on the particular stove, but I have not seen the same behavior you describe with a new Jotul.summit said:BeGreen said:Are you sure the creosote build up is because of the stove? The Oslo is a very clean burner if it has dry wood and is burned hot enough. Seems like there may be other factors involved.
Jotuls today are a little touchy to get started (gotta leave the door cracked for a while) and actually can shut down pretty hard.... High firebox temps (just like a Cat) are key to achieve before you shut it down for that 8+ hr burn.
dznam's issue when he contaced me initially was that the F600 cat on one end of the house easilly achieved an overnight run, no probs... but the oslo on the other end whipped thru the same firewood like nobody's business. Given his taller chims, and overall draft, I came to conclusion that the Cat stove was actually working better in his setup because it forces the smoke to make a downwards and restricted flow thru the stove, the cat and cat chamber (rather than the up, around the baffle and out of the oslo) helping to counteract his strong draft and give him the desired burns he was aiming for. We happened to get a F600 cat in just before he called, and the rest is history.
grommal said:That's too much of a generalization. My new Oslo does not need to have the door left open at all on startup with dry wood. I can light the newspaper or SuperCedar and close the door immediately, and get a roaring fire in no time. If the wood is dry, and I'm not trying to run the stove full out, shutting the air all the way down works great, and does not smoulder it at all. So, perhaps it depends on the particular installation, and perhaps it depends on the particular stove, but I have not seen the same behavior you describe with a new Jotul.summit said:BeGreen said:Are you sure the creosote build up is because of the stove? The Oslo is a very clean burner if it has dry wood and is burned hot enough. Seems like there may be other factors involved.
Jotuls today are a little touchy to get started (gotta leave the door cracked for a while) and actually can shut down pretty hard.... High firebox temps (just like a Cat) are key to achieve before you shut it down for that 8+ hr burn.
dznam's issue when he contaced me initially was that the F600 cat on one end of the house easilly achieved an overnight run, no probs... but the oslo on the other end whipped thru the same firewood like nobody's business. Given his taller chims, and overall draft, I came to conclusion that the Cat stove was actually working better in his setup because it forces the smoke to make a downwards and restricted flow thru the stove, the cat and cat chamber (rather than the up, around the baffle and out of the oslo) helping to counteract his strong draft and give him the desired burns he was aiming for. We happened to get a F600 cat in just before he called, and the rest is history.
BeGreen said:Are you sure the creosote build up is because of the stove? The Oslo is a very clean burner if it has dry wood and is burned hot enough. Seems like there may be other factors involved.
mo burns said:Hi Pyro
In your first set of pictures, the picture with all the F-600's parts on the floor, is the stove on the left in the back ground an Enviro-Fire Mini?
Semipro said:BeGreen said:Are you sure the creosote build up is because of the stove? The Oslo is a very clean burner if it has dry wood and is burned hot enough. Seems like there may be other factors involved.
We did burn some less than optimally-dry wood in the Jotul last season so that may explain part of the creosote. However, we burned the same quality of wood in the Firelight without the same creosote buildup. Maybe that's an attribute of the catalytic system; the ability to burn wetter wood cleanly. Its interesting that our Oslo uses a 6" dia. insulated stainless steel flue about 25' long and most of the creosote buildup is at the very top, apparently where the temps drop to the point where creosote can form.
Its interesting also that the Firelight works well in a 35' x 12" square ceramic flue which is theoretically way too big for proper drafting. After years of operation I went to clean this flue and could still see the red ceramic color of the tile as far down the flue as I could see.
We've also found that extra air is needed when starting our Jotuls. I use the side door on the Oslo to avoid the grate warping issue that others have reported.
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