To get more room in your panel.. more spaces for the 240v application.. you MIGHT be able to double up (two wires pigtailed to one breaker) one of your 15 or 20 amp breakers and then you can fit more stuff in.. just depends what your panels got in it. Normally or sometimes.. hard to word stuff with such an audience ready to critique or try to prove something..ok back to what i was saying.. Normally or sometimes outlets/ lights are on the same line..especially in the old days... and youll have 8-10 plugs on one line along with a few hundred watts of lighting.... if its overloaded after the double up the breaker will just trip if your over the max....but typically those eight outlets are used for tv, radio etc and your amps/watts are so minimal that it wont affect you if you put 16 on one.. half arent even used..grab a digital tester and see what your load is and you'll know where ur at.
and be careful of the neutral game.
I dont think I am trying to prove anything. Bad electrical advise can start fires, ruin expensive items, burn down houses, land people in jail after the fire department puts out the fire on 200 plants or just kill someone.
I have wired several grows, worked on alot of panels, sub panels etc so I feel confident on the advise I give. I also have a family member who is an electrician that I call if I ever feel out of my element.
Some of the advice I have seen here is just flat out wrong
As far as your advice on doubling up circuits onto one breaker, I am not sure. I really cant think of a safety issue. The worst case scenario is the breaker will trip before either circuit is really maxed out.
You know what, I am actually doing that now. My lights actually run off the same circuit as the dryer. Lights are wired to the dryer breaker. We dont run the dryer when lights are on
