Ah, darn. If it’s an older model, you would probably save a lot of energy just by upgrading. But if it’s owned by the landlord… split incentives suck.
And yes! You can get a stick of incense (they also make dedicated tools that do it with glycol) and waft it by your doors and windows to see where the air is flowing through
Yep! A lot of utilities offer low/no cost assessments, and I know mine give out smart power strips, LEDs, and lowflow faucets and shower heads if you get an assessment done
It’s not going to be nearly as comprehensive as a paid audit, but still worth looking into!