A heater that mines cryptocurrency and makes you money while heating your home. Sounds too good to be true right? And yet the basic principle is simple: mining cryptocurrency creates heat. Instead of letting that heat go to waste, why not use it? This is what the QC-1 from Qarnot Computing proposes to do by using 2 embedded graphics processing units to mine cryptocurrencies or blockchain transactions to heat a space of up to 25 m². These two GPUs enable the calculation of 60 MH/s (megahash per second). As Bitcoin mining has become so rare and expensive it requires mining farms, the QC1 will focus on mining Ethereum, Z-Cash or Monero automatically according to exchange rates. If however you want to decide what currency your heater is mining you are also free to do so. When you enter your wallet address the QC1 will mine for this public key with no intermediaries, so everything your heater mines is yours to keep. So what’s the bottom line? A potential gain of 800 euros a year, with the QC1’s initial cost at 2,900 euros. The QC1 is available for preorder now and will be ready in June 2018.