What if anything do you guys say about gas appliances being vented into an unlined brick chimney flue?
The chimney should be lined. The brick looks to be distressed, I would recommend a level II chimney inspection by a Certified Chimney Sweep.
Mark i also inform them of condensation , leaks Carbon monoxide and so on. it should be lined.
Thanks guys, you both confirmed my thoughts, I just wanted to make sure I was correct before calling it out.