HVAC Engineering & Electrification
Mini-Split Heat Pump BTU & Multi-Zone Sizing Calculator
Calculate room-by-room heating and cooling load BTUs based on room square footage, ceiling height, climate zone, window insulation, and multi-zone condenser matching.
Zone Spatial Dimensions
Heat Pump Unit Recommendation
Calculated Thermal Load
Cooling & heating capacity needed
Recommended Unit Rating
Inverter variable-capacity sizing
Electrical Circuit Requirements
NEC outdoor disconnect & wire gauge
Inverter-driven variable compressor mini-splits ramp down to 25% capacity, eliminating short-cycling and maintaining whisper-quiet 22 dB sound levels.