For these fire sticks, I've seen similar up here too. My buddy, a fire prevention officer I talked to, his first reaction was what certification does it have - not sure if any of these newer types have been checked for efficiency or longevity by any certification laboratories in the United States or Canada. They hadn't been when I checked pre-covid.
Just some food for thought.
Personally I have a dry chemical on the passenger side also. I've got the GM heater but no fresh air panel.
I've also got a few extras on the outside, all functional, but they go with decor.


1952 Chevrolet 1700 Bickle Seagrave
"Old Smokey'"
Following the build in the DITY Gallery