I'm using a free old i5-650 with hd7570 (dell rebrand) gpu to warm my bedroom a little bit - it just takes the chill off, but with a magnitude of about 10 more than pays for itself. it keeps the aquarium heater from turning on so often. The next step is to rig an arduino temperature sensor and watercooling setup to directly warm the aquarium with waste heat, if I ever get around to it. Put your space heater computer under the bed, it captures the heat in the most important place and helps block the fan sounds!
RE: Good Morning Gridcoin - Bloomberg Tech' Mention & My GRC Origin Story