Bro, my room size is roughly 13/14 x15 with outer under shade, sun exposure only one wall at 1st half.
I blv Sprinter 1.5 has more capacity to even cool room size 50-60% of bigger than mine.
I think 1.5 inv will be enough for your room.
For me, performance was not an issue since earlier I used 1 ton non inv Ac for this room and cooling was ok.
My only concern was reliability since my 1 ton haier leaked after 1st year.
In comparison, dawlence sprinter is running smoothly with me since last 2 years.
