1. What is a BTU Calculator for Heating Garage?

Definition: This calculator estimates the heating requirement (in BTUs per hour) needed to maintain a comfortable temperature in a garage space.

Purpose: It helps homeowners and contractors determine the appropriate heating system size for garage spaces.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q \) — Heating load (BTU per hour)
• \( A \) — Garage floor area (square feet)
• \( \text{BTU/ft}^2 \) — Base heating requirement per square foot
• \( F_g \) — Insulation and exposure factor

Explanation: The garage area is multiplied by base BTU requirement, then adjusted for insulation quality and exposure to outside temperatures.

3. Importance of Proper Garage Heating Calculation

Details: Accurate BTU calculation ensures efficient heating, prevents undersized equipment, and helps maintain comfortable working conditions.

4. Using the Calculator

Tips: Enter the garage area in square feet, base BTU requirement (default 30 BTU/ft²), and insulation factor (default 1.5). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the typical BTU/ft² for garages?
A: Most garages require 20-30 BTU per square foot, depending on climate.

Q2: How do I determine the insulation factor?
A: Use 1.0 for well-insulated, 1.5 for average, and 2.0+ for poorly insulated or exposed garages.

Q3: Does this account for extreme temperatures?
A: No, for very cold climates (below 0°F), consider increasing the BTU/ft² value.

Q4: Should I round up the result?
A: Yes, it's recommended to round up to the nearest heater size available.

Q5: Does this include heat loss from opening doors?
A: No, if doors are frequently opened, consider adding 10-20% to the calculated value.