Hi, I just changed to mining Zcoin with my two GTX1070's because it is a lot lower intensity and still gives a decent return. My computer is in my room and if I'm mining with neoscrypt or equihash, it gets quite hot and therefore noisy. With Zcoin it's at a steady 60C with lowish fan speed.
Are there any other coins that have low heat generation?
Yep - you can mine Credits(CRDS) with your CPU, but not your GPU. Decent returns considering the lower power draw.