The Natures comfort design is similar to Shaver,which they basically copied,and improved.Smoke is more a function of how wet the wood is,and how often the OWB cycles.With good dry wood,my Shaver only smokes for about 30 seconds when the fan comes on,and about a minute it will smoke white when the fan shuts down,and the damper fully closes.You should expect the same,and a tiny trickle of smoke occasionally when at idle.
If you have neighbors close enough to worry about the smoke,you may want to consider an EPA model,the NC arent that cheap,so upgrading to an EPA stove wont hurt that bad.Either way you go,if smoke is a concern you need to plan ahead and build a wood shed next too/over or near the OWB and keep the wood dry and up on some old pallets and you will be fine.Dry wood will reduce your stress levels big time,wet logs,esp if they sat on the ground, can cause the fire to burn out around the wet wood,and you will lose your fire and water temps.
