All electric heaters are all considered to be 100% efficient. A bitcoin miner is an electric heater, not a heat pump. Although much more noisy, expensive and br

All electric heaters are all considered to be 100% efficient. A bitcoin miner is an electric heater, not a heat pump. Although much more noisy, expensive and breaks more often, plus it requires an internet connection. So it makes more sense to get a normal heater. Mining bitcoin only makes sense on an industrial scale. Which is why these things are usually found in data center like facilities. (Meanwhile heat pumps can go up to 300% efficiency.)