AUX The AUX MINI split AC ductless heat pump is the air comfort system you need to ensure your home stays comfortable, cool, and cost-effective, for as long as you desire. This high-quality ductless heat pump is energy efficient, packed with great features, and priced to meet most household budgets. If you need targeted air comfort for a single zone in your home or need more general air conditioning, the Inverter variable-speed compressor with its Energy-efficient performance ensures your comfort and affordability.