Key Takeaways
- Refrigerant Magic: R410A refrigerant boils at -48.5°C/-55.3°F, allowing heat pumps to extract heat from outdoor air even at -30°C/-22°F
- Cycle Reversal: Heat pumps don’t create heat – they move it by reversing the refrigeration cycle between heating and cooling modes
- Inverter Technology: Modern inverter compressors work like car engines, modulating speed to match load requirements and save energy
- Two-Stage Injection: Advanced compressors use dual pressure injection points to maximize heat production through both state and pressure changes
