Amount of smoke from chimney?

[Wolves1]

I have cat stove second year I've been burning a cat stove been burning a non cat stove for 12 years before that. I used to look at my chimney with the sky as a back ground did not see any smoke. Now I was in the back yard and notice with the trees in the back ground I can see smoke coming out not a lot just a slow trickle. I would like to get people's opinion about how much smoke is ok for a cat stove to come out of chimney with air closed and a glow in the insert and cat temp around 700 with 2 logs burning?

 

[jatoxico]

Can't really help as I'm not a Cat person but it may help to post what type of stove and any details about the install and wood you care to share.

Wasn't water vapor was it?

 

[Wolves1]

Regency ci2600 with a 20ft clay and brick chimney with a liner not insulated, I'm burning oak about 2 years old, with 14% moisture freshly split reading from the middle. Temperature outside is 52.


Including picture of stove after burning 2 logs for 3 1/2 hours and a picture of the top of chimney it's hard to tell from the picture but there is smoke not a lot but some.