There are a lot of folks on here that are burning formerly utsed stoves that were not maintained by the original owner and obtained for little or nothing.
Even those who bought new didn't always pay an arm and a leg.
Then we can move on to those who are burning orphan stoves that supposedly are POS stoves.
My bucket of parts heats my house down to at least -22
, don't know about lower as it hasn't gotten lower than that here yet. The stove was running at firing rate 3 of 5.
As a diesel mechanic you should understand air/fuel mixtures and the importance of air flow in keeping the burn pot clean of ash so you might be able to get your bucket of parts to at least skip a day and still heat the abode.