Venting the heat from a Bitcoin miner (ASIC) into your home’s HVAC system is the ultimate " pro-sumer " move in 2026. By doing this, you transform a loud, hot machine into a secondary furnace that offsets your heating bill while stacking sats . Here is a step-by-step DIY guide to integrating your miner into your home's ductwork . The Concept: "The Heat Bypass" ASICs like the Antminer S21 or Avalon Mini 3 move a massive volume of air ( CFM ). The goal is to capture that 100°F–130°F (38°C–54°C) exhaust and push it into your Return Air Plenum (the big duct that sucks air back into your furnace to be heated). Required Tools & Materials 3D Printed Exhaust Shroud : Fits over your miner’s 120mm fans. 6-inch Insulated Flexible Ducting : To prevent heat loss and dampen noise. Inline Duct Fan (AC Infinity Cloudline): Crucial. Do not rely on the miner's fans to push air through your whole house; they aren't strong enough. Backdraft Damper : Prevents ...