My fairly new front door has warped to about an inch out. It hasnt seen any real moisture and the fixed half is just fine. Its Alder and has been installed for about 6 months. The door people are blaming the wood stove which is about 7' away and Ive never had the house over 80. I think is the 2 large knots in the outer frame. what do you guys think? This door cost close to $5K. heres some pics