Only slightly more than the furnace would have been, because the miner is running 24/7 and it’s not set up to adapt to changing temps. In effect it’s a “dumb” heater. I tuned it down to about 80% draw and thats been a good balance. Now that it’s warming up, I’ll be tuning it down again soon. No need to heat the house above 60 degrees when it’s unoccupied!

Paying for the electric out of pocket and holding the BTC generated.