I bought a Jotul F500 V3 Oslo cast iron stove. Nothing but problems. Stove seals, including cast iron top of stove and body of stove leaked smoke emissions when cooling down, or if a piece of wood ignited in a flash within the stove. Seemed to be improper sealing of entire fire box. Catalytic combuster is a POS. I took videos and still photos of smoke pouring out of seals on sides and under top. It's as if the cast iron was not made snug enough to specs so it wouldn't leak.
Had stove maintenanced in Jan., Feb., and March 2024. Can't afford to keep having installer come back and maintenance once per month, when User's Manual says it should only be maintenanced once or twice per burning season (approx. 5 months). Defeats the purpose of secondary heating source. I would never recommend to anyone. Catalytic Combuster is a defective part of the stove. Stay away from catalytic stoves. They are NOT environmentally sound or healthy. They are a public health problem. Whoever designed it, didn't do their due diligence on how the catalytic combustor needs to be maintained at least once per month. Used wood at or below 15% moisture content and used several pieces of copy paper to ignite fire. When fire started, puffs of smoke came out of the seams of the stove. If a piece of wood was 18% or more moisture, it smoked up and emanated out of the stove through the seams. I was having huge smoke problems with it once a month, and it smoked out the entire house. Got "smoker's cough" from it, due to being [poorly] cemented seams that would expand and contract with heat and cool down. Once I stopped using stove in March, the "smoker's cough" went away. Someone recommended kiln-dried firewood to use in the stove. I priced it out. $250-$300 cord for seasoned firewood I could dry out over summer. Kiln-dried firewood would be needed in middle of winter (when "seasoned" wood tended to get somewhat wet). Cord of Kiln-dried firewood is twice the price of "seasoned" wood. One company wanted to charge $900 for a cord of kiln-dried firewood delivered (they said it comes from out of state). Jotul needs to re-do their Oslo and/or all cast iron stoves because of emissions leaks out of seams and catalytic combuster is a piece of junk and defective. Need to come up with another method, or use fully enclosed steel boxes.