Here's my response to that... My home is completely electric heat. That is radiant heating coils in the ceiling. My living room alone pulls close to 5kw when the heat is on. That being said, I see the following options. 1) Pay for electric heat to heat my home or 2) Pay for electric to run my miners and also heat my home. My office that runs one single miner of 4 cards RX580 stays around 70F. The heat never turns on. It's fantastic. So yes, it costs me money to run the miner, but in exchange, the heat never turns on. Win win?