Used bitcoin miner with Njord fan kit and AC infinity fan included. This is an S19 anyone 220V bitcoin miner that has been running and operates great. I just upgraded to a higher TH miner. These are 2400 watt machines.

They work great heating a shop during the winter. Two heated my 2100 sq ft last winter.

I do have three complete sets of these and three that I have not used. $50 off if purchasing more than one.