Hello Folks, As a scientist, I cannot easily explain the change in my house this season so I am looking for anecdotal evidence to support my theory. Or disprove it, who knows! Not being able to figure this out is frustrating. Here is the issue, this season my house is not warming up as it was in seasons past. Now that the cold weather is here, this is even more evident. I am guessing the problem is that I have made my house to well insulated. Here is the breakdown: 1) Over summer I double insulated attic and had new high efficiency windows installed. 2) Chimney was cleaned and stove inspected, all seals in place and no creosote build up. 3) Wood is same batch as burned last year when my house would get nearly 8 degrees warmer. 4) Since the wood is same batch, it is seasoned a year longer, that could play a part. 5) All firebricks, baffle, and rope are in working order. 6) Two years ago I redid the siding with insulated vinyl siding. When I put the new windows in, I guessed that the house would get warmer since those old windows leaked air like crazy. Its not happening and it is driving me mad. Also, I no longer get red hot overnight coals in the morning. In fact most times the stove is now completely cold in the morning. The wood is burning up faster, yet I cannot find a leak in my fireplace. Can a house be too insulated for its own good? Or is there some other type of issue going on here that I am unaware of? Thanks anyone for your help.