Review of Jotul F 100
Not good in this installation, air intake + rear flue problem.
We have had 2 previous Jotul stoves plus a Morso and 2 other brands of woodburners. We have had or have 3 other woodburners all installed in this property in similar height flues. The previous Jotuls and the Morso have been excellent. This stove is of excellent build quality and finish quality and looks great but in this installation it is a complete failure. The stove has a newly lined 10 to 12 m flue in an existing Victorian chimney stack. The stove will not light without filling the room with smoke and it is extremely difficult to get the output from the stove to start moving up the flue. We are using the rear flue outlet at the back of the stove and on this stove both the primary and secondary air inputs are at the top of the stove. The result is that unless the flue is already hot then the output from the stove finds it easier to escape through both of the air inlets than to exit the stove through the (lower and less direct pathway) horizontal flue outlet and start moving up the flue. Consequently the room fills with smoke exiting through the air inputs.
To my mind it's largely a design fault with the stove to have both air inputs at a higher point on the stove than the rear flue outlet. I doubt it would be a problem if using the top flue outlet as the hot gasses will take the easier path. Our previous Jotul and Morso stoves in similar installations have all had primary air inputs at the bottom of the stove door and have all been trouble free. I would not recommend using this stove with the rear flue outlet.Stove expert replied: How long is the horizontal flue run, it should not be more than 6". You have along flue system was it sized according to this or just the stove? Was the flue liner insulated as this will make a big difference? As you have other flue systems that are active in the property this can and will effect the way they operate with each other as some may have a stronger draw than this system you are having problems with. Is there an air vent in the room? Try to operate this model with the room door shut (providing you have a vent) as you say get some warmth into the system (possibly just a lit candle in stove for a while before trying to light it) this may help. If still having problems you could always get expert advice from chimney specialist.
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