2 antminer C1 220v pump boiler with serpentine (almost) not reactive cooling liquid pipes and shit...
max temp on asics ~62c lowest temp is under room temp! as the water from mains is around ~20c and ambient at ~30c
good for warm water on the sinks, shower, bathtub and washing machine!!!
upgrades: s7?; s5 for sure; maybe more miners and an in-line radiator to keep the temp in check, maybe with flex lines so i can move it in and out of the house