Bear419

First post. I am just getting into the hobby and am thinking about how to best set up my work space. I know a major concern is ventilation and I have read some of threads about forging indoors and the potential hazards. My question, is it ever be feasible to have a basement set up and would I just be asking for trouble trying to forge indoors? The only reason I am considering this is because I have a well functioning basement fireplace, and I wondered if I could use that to vent gases from a 2-burner propane forge. My basement specs: -Hearth and fireplace, flue in good condition have had roaring fires in winter with no issues -Multiple block glass windows with sections that can be opened for ventilation -Multiple CO detectors in the house, one of which gives a PPM readout -Drafty 1920's construction -Concrete floor and tiled concrete walls -HVAC return air is blocked off, but HVAC constantly blows new air into basement -Have the ability to create positive pressure with blowers motors that pull fresh air through basement windows. My thinking, was to just test it out with a few different venting set ups and see what PPM CO readings I got. Interested in your opinions if the windows and fireplace might make this a feasible option or if it's just a bad idea.