I am not sure what BTU system you are looking for but I have three of these.
GREE Terra 9,000 BTU Ductless Mini Split AC FREE 25' Line Set
GREE Terra Superior Efficient 9,000 BTU 27 SEER
But they only heat down to 5 deg. They have Mitsubishi compressors.
We are very happy with these you can change the room temp one degree at a time.
They put out 120 deg heat right at the unit.
Here is my review between LG and Gree
http://ecorenovator.org/forum/33739-post115.html
I used AHRI Directory ahridirectory.org to pick these out. Just like the advice above.
They have a new unit that will provide heat at -20 and is still 30.5 SEER
http://www.comfortup.com/gree-crown-...em-208-230-vac
It adds Wi Fi Control from your phone.