howdy. i purchased a 1557 USSC wood/coal furnace, and reading this forum, hear it aint the best. could not keep the fire going. the feed door dampner was closed and the ash door dampner was all the way open. went to where i bought it, he said the chimney was sucking up too much hot air. said to only turn it one turn, thats it. i did, nothing
. before i went postal and set fire to my house, i came here and found out to open the ash door right up to get it fired up. bingo, in business, BUT. the only way to keep it going was to leave ash door cracked open. now my question is; is it safe to keep this door cracked open? if not, what can i do? maybe try to install another dampner on the door, and how might i go about doing that? thank you for all the help so far, you guys are life savers!