Any thoughts on my setup?

Your setup works well for heating—ASICs turn almost every watt into heat, so venting it into the basement in winter is free BTU. The Bitaxe screen and pool integration is clean, and the Mini Doge adds to the thermal load without needing separate cooling. Make sure the case exhaust isn't recirculating warm air back into the intakes, and that each miner has a few cm of clearance so it's pulling cool basement air, not its neighbor's exhaust. If any Bitaxe throttles or shows ASIC temps over 65°C, the airflow path needs opening up or the room's warmer than you think. Common mistake: running miners in an enclosed cabinet without real through-draft and wondering why they throttle even though the room feels cool.