Then it sounds like HVAC/Refrigeration it the trade for you. It’s kind of funny because we tend to get all the people who dropped other trades for various reasons. I work with ex plumbers who didn’t want to deal with shit, I work with journeyman electricians who didn’t want to spend 8 years becomming a master electrician, I work with ex building automation guys who got tired of trying to automate busted equipment. A lot of my coworkers started in other trades, went “This fucking sucks” and switched to HVAC-R.

Yup. We recently hired a guy straight out of the HVAC-R program of our local tech school and he barely had any refrigeration knowledge. Aparently they only teach you barely enough about refrigeration to get an EPA cert and nothing beyond that.

Hell, out of the three new techs we got recently, the one who actually went to tradeschool is the least competent. If you want to get into the trades straight out of highschool you best bet is to just start with a manual labor job for a year or so so you have something to put on a resume that show you can work. After that just apply for a low level position in your trade of choice. Once you’re in your employer should be paying for you to get any certs that you need.

A lot of units now a days have a plastic coating on the discharge gas pipe which mostly prevents the corrosion issue. I am a refrigeration mechanic and while the condensate pan is one of the first areas I check for leaks, it also isn’t the most common area. It probably ranks in third place for frequencybof leaks on reach in units. I probably get 10x more leaks right in the evap coils. People just tend to notice the condensate pan leaks more because they’re on the high pressure side of the system so they’re going to be quick and relatively dramatic. Evap leaks can fly under the radar for years because they’re usually small and only result in gradually worsening performance.

There are also alternative condensate pan designs which use sheets of a wicking felt like material standing up in the condensate pan to increase the surface area for evaporation. That plus the warm air from the condenser fan can often work just as well as the discharge gas heated pans without the corosion issues. The reason that more companies don’t do that is because using the discharge gas for evaporating condensation also means that you’re using the condensation to precool the discharge gas so it slightly boosts the efficiency of the unit.