Other ways to say this would be "easy going" or "flexible".


  Joe is such an easy going guy.  He never argues with Bob, even when everyone knows that Joe is correct.
  
  Jane is pretty flexible – she never gets hung up on the sticky parts; instead, she focuses on the big picture and getting things done.


NOAD defines easy-going as:


  relaxed and tolerant in approach or manner 


and lists tolerant and broad-minded as synonyms. This may not be completely synonymous with open minded, but there is some overlap. Similarly, NOAD defines flexible as:


  (of a person) ready and able to change so as to adapt to different circumstances


Here, "different circumstances" can be applied much more broadly than matters of beliefs and opinions (such as coping with an unexpected job change). Still, the word might be used when talking about the situation you described.

What's the name of the characteristic of being "open hearted"?
Sounds like a stupid question, but really hasn't been asked before, or I haven't found a post about it. Either way, here it is:

I bought a soldering iron recently and am looking for a place in my house to do my soldering. Of course the first thing in my mind would be to solder in the basement or garage and as close to a window/outdoors with good circulation, however I plan on working with arduino boards and would like to everything in my upstairs "computer room" near my gadgets. Do you think opening up my window in my room and having a fan suck out the fumes aimed at the window would be suffice to be safe, or should I stick with the basement/garage idea. Let me know on your thoughts.
