I've been having a problem with an extremely smelly chimney. It got progessively worse over the last couple years so I took out the pellet stove that was originally there. Unless I had a fire going the smell would fill the entire house when it got really hot, really cold or would rain. I finally decided to install an olympic wood stove insert so the heatilator tubes were cut out and the top of the chimney was sealed. The installer did a controlled burn down my chimney to remove any stubborn creosote. They packed it with insulation where needed yet I still get a chimney smell before I even used the stove. I think the heatilator tubes are the problem but there must be a draft to still suck the smell out, right? I do have a heat pump so it does suck some of the smell out when it's on but it is a problem even when I don't use it. I'm wondering if it is possible that there are chimney cracks that could cause this? There is also a blower for the heatilator tubes under the house. Could that be causing a draft? I'm so tired of this smell and I don't know what else to do to try to fix it. Any suggestions would be greatly appreciated.