Made mistake with secondary air last night

[john26]

I did a cold start on my wood furnace last night, I block the secondary air inlets to prevent down draft through the secondary tubes and out the inlets with refrigerator magnets. I remove them when the chimney heats up and draft is strong usually less than 10 minutes, last nigh t I forgot to remove them. The fire seemed hot and burning well so I went to bed this morning I noticed the house was colder and the blower kicked off very little coals left in the fire box less than usual I had the primary air shut all the way down but its not completely closed. It appeared to me that I burned through the wood faster I guess more draft then normal on primary and made less heat, I would assume more creosote in the chimney. My wood is very dry so hopefully not too bad but I will have to be more careful. After seeing this I would not want to burn on a regular basis with secondary blocked or change to pre EPA stove.