BTU Calculator

The HVAC BTU Calculator is designed to help HVAC contractors estimate the heating requirements of a home or space based on square footage and climate zone. By using this tool, contractors can ensure they recommend the right size heating equipment for optimal energy efficiency and comfort.

How It Works:

1. Input Data:
   • Square Feet: The user inputs the total area of the room or home in square feet.
   • Climate Zone: The user selects the climate zone in which the home is located. Climate zones are based on a map, which categorizes regions by typical heating needs. For example:
     • Zone 1 (hot): Requires between 30 and 35 BTUs per square foot.
     • Zone 2 (warm): Requires between 35 and 40 BTUs per square foot.
     • Zone 3 (moderate): Requires between 40 and 45 BTUs per square foot.
     • Zone 4 (cool): Requires between 45 and 50 BTUs per square foot.
     • Zone 5 (cold): Requires between 50 and 60 BTUs per square foot.
2. Calculation:
   • The calculator multiplies the input square footage by the BTU range for the selected climate zone.
   • For example, for a 30 sq ft room in Climate Zone 1, the BTU estimate would be calculated as:
     • Min BTUs: 30 sq ft × 30 BTUs / sq ft = 900 BTUs
     • Max BTUs: 30 sq ft × 35 BTUs / sq ft = 1,050 BTUs

Formula:

BTU Estimate = Square Feet × Climate Zone BTUs per Square Foot

Where:

• Square Feet is the area of the room or home.
• Climate Zone BTUs per Square Foot is the BTU range based on the selected climate zone.

Output:

• Recommended BTU Range: The calculator displays a heating recommendation in BTUs for the given space.
• Climate Zone BTU Range: The specific BTU range per square foot based on the selected climate zone is also displayed, helping contractors understand how much heating power is necessary to ensure comfort and efficiency.