Note:

This calculator determines the Net Hazard Volume (NHV), which represents the total air volume inside a protected space requiring fire suppression.

Understanding the Parameters:

The Net Hazard Volume is influenced by several key factors that define the protected space:

• Room Length (L): The measurement of the room from one end to the other.
• Room Width (W): The distance across the room from side to side.
• Room Height (H): The vertical measurement from floor to ceiling.

What is Net Hazard Volume?

Net Hazard Volume (NHV) is the internal air volume of an enclosed space, calculated by multiplying its length, width, and height. It is measured in cubic meters (m³) and is essential for designing fire suppression systems.

Why is Net Hazard Volume Important?

NHV helps determine the required quantity of FM-200 or NOVEC 1230 agents to effectively suppress a fire. The larger the volume, the greater the amount of extinguishing agent required.

• Accurate Agent Calculation: Ensures the right amount of fire suppression agent is used.
• System Efficiency: Helps optimize nozzle and pipe sizing.
• Regulatory Compliance: Used for compliance with NFPA 2001 fire safety standards.
• Cost Optimization: Avoids overuse or underuse of fire suppression agents.