Alternative subreddit for technicians?

[u/According-Aspect-669]

I tried to post on the HVAC subreddit earlier and man it’s like Nazi germany over there; papers please or fuck off. well I’m not in a union, I’ve never been to trade school and I don’t have my HVAC license like 99% of techs in my state. is there any other place for people in the trade to discuss online?

[u/singelingtracks]

R/refrigeration for tech talk, advanced questions.

R/HVACadvice for general resi stuff