1. What is Heat Pump Heating Capacity?

The heating capacity of a heat pump is measured in BTU/hr and indicates how much heat the system can deliver. Proper sizing is crucial for efficiency and comfort in your space.

2. How Does the Calculator Work?

The calculator uses the basic heat pump sizing formula:

Where:

• \( Capacity \) — Heating capacity in BTU/hr
• \( Area \) — Area to be heated in square feet (ft²)
• \( Factor \) — Heating factor in BTU/ft² (typically 30-60)

Explanation: The heating factor accounts for climate conditions, insulation quality, and other variables affecting heat loss.

3. Importance of Proper Sizing

Details: Correct heat pump sizing ensures energy efficiency, proper dehumidification, and system longevity. Oversized units short-cycle, while undersized units run constantly.

4. Using the Calculator

Tips: Measure your space accurately. Choose higher factors (40-60) for colder climates or poor insulation, lower factors (30-40) for mild climates or well-insulated spaces.

5. Frequently Asked Questions (FAQ)

Q1: What's the typical heating factor for my region?
A: Northern climates: 40-60 BTU/ft²; Southern climates: 30-40 BTU/ft². Consult an HVAC professional for precise sizing.

Q2: How does insulation affect capacity needs?
A: Well-insulated spaces may need 20-30% less capacity. Poor insulation increases required capacity.

Q3: Should I include all square footage in my home?
A: Only include conditioned spaces. Exclude garages, attics, and unconditioned basements.

Q4: What about ceiling height?
A: Standard calculation assumes 8-foot ceilings. Add 10% capacity for each additional foot of ceiling height.

Q5: Is this calculator suitable for commercial spaces?
A: Residential calculations differ from commercial. Commercial spaces require professional Manual J calculations.