Heat Loss Calculator
Estimate whole-house design heat loss and right-size a heat pump using the simplified UA method, infiltration, climate design temperature, and component breakdown.
Default heat-loss example
- Design heat loss: 22,589 BTU/hr
- Recommended heat pump: 24,000 BTU/hr (2-ton)
- Total UA: 322.7 BTU/hr·°F
- Annual heating: ~3,783 kWh at COP 3