1. What is a Heat Pump Sizing Calculator?

Definition: This calculator estimates the British Thermal Units (BTUs) required for a heat pump based on your home's square footage and climate factors.

Purpose: It helps homeowners and HVAC professionals determine the appropriate size heat pump for efficient heating and cooling.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( BTUs \) — British Thermal Units needed
• \( \text{Square Footage} \) — Area to be heated/cooled (square feet)
• \( \text{BTUs per Sq Ft} \) — Climate factor (typically 20-30 BTU/sq ft)

Explanation: The square footage is multiplied by a climate-specific factor to determine the heat pump capacity needed.

3. Importance of Proper Heat Pump Sizing

Details: Correct sizing ensures energy efficiency, proper temperature control, and prevents premature system failure.

4. Using the Calculator

Tips: Enter your home's square footage and select an appropriate BTUs per sq ft value based on your climate (default 20 BTU/sq ft for moderate climates).

5. Frequently Asked Questions (FAQ)

Q1: What BTUs per sq ft should I use for my climate?
A: Use 20 for moderate climates, 25-30 for colder climates, and 15-20 for warmer climates.

Q2: Should I include basement square footage?
A: Only if the basement is conditioned space (heated/cooled).

Q3: What about room height or insulation quality?
A: For high ceilings (over 8 ft) or poor insulation, increase BTUs per sq ft by 10-20%.

Q4: How do I convert BTUs to tons?
A: Divide BTUs by 12,000 (1 ton = 12,000 BTU/hr).

Q5: Should I round up the calculated size?
A: Heat pumps come in standard sizes - choose the next available size if between options.