Originally Posted by BabsHoney
I forgot their used to be a gas heater underneath this particular floor.
The thermostat is still in the wall but the heater is gone (???)
It's not a gas pipe....it's not a heater flue.....I'm assuming that the end of the roof is open...so it has to be a vent.
If it was me, I would be grabbing a small shovel and diging down around the pipe.....find out what it threads into. Assuming you can get to the threads....I would just unscrew each section...and when you get to the below ground point....just screw a plug into that part.....call it done.