Is it vented or ventless?

[RichSQUATS]

I recently purchased a home and to my delight it has a fireplace. I'm having a hard time figuring out if its safe to burn, let me explain why. The fireplace has a chimney chute, but the door on the chute looks to be welded shut. Which would make you think it must be ventless, but the logs are not mounted in place and the flames are not as uniform as a ventless, they are wild like a real fire which makes me think its vented. There is a switch that will turn on some sort of fans that suck air but I'm not sure if it's just helping to create an upward flow of air to carry fumes out the chimney even though the things welded shut which is the concern.
I've uploaded some photos to help, and would greatly appreciate any assistance given.

 

[DAKSY]

I woi;d look behind the logs to see if the rating plate is attached to the grate.
If it's there, take a pic & post it. We might be able to help you.
With EITHER unit, the damper should NOT be shut, but propped partially open.
If you DO plan to burn it, get yourself a CO detector.

 

[RichSQUATS]

Thank you for the response Daksy, I will check the rating plate to see if it is mounted and will send a photo after work.
I did just install a brand new CO detector.
I will repost with my findings.

 

[RichSQUATS]

I woi;d look behind the logs to see if the rating plate is attached to the grate.
If it's there, take a pic & post it. We might be able to help you.
With EITHER unit, the damper should NOT be shut, but propped partially open.
If you DO plan to burn it, get yourself a CO detector.

I did not find a plate near the grate but I did find one inside the upper left all of the fireplace.
I've attached it below.

 

[DAKSY]

You have a zero clearance wood burning fireplace. Here's pic from the manual.
I'd say you have some sort of ventless gas-burning log set,if that damper plate is welded shut.
Vented logs used to require a damper clip to keep the damper 1" open.

 

[RichSQUATS]

DASKY Thank you for taking from your time to help me, it makes sense that it was originally wood burning being that I find soot on the front upper face of the fireplace. I also assume it likely is ventless since they welded it shut. Ill buy a 2nd CO detector and place it in the den near the fireplace. Thanks again for your help.

 

[Millbilly]

Can you remove the logs and get us a good picture of the pilot assembly