Water Heater Sizing Calculator

Water Heater Sizing Calculator MCP Connector for Claude

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Calculate required First Hour Rating (FHR), tank capacity, and efficiency benchmarks for water heaters based on occupancy and fuel type.

3 tools Official Updated Jun 28, 2026 Official Vinkius Partner

This MCP server provides precise calculation tools for sizing water heating systems. Use calculate_fhr_requirement to determine the necessary First Hour Rating (FHR) based on occupant demand, usage type (residential or commercial), and fuel technology recovery rates. The calculate_tank_capacity tool recommends minimum tank volumes in gallons by analyzing occupancy patterns. Additionally, use get_efficiency_comparison to compare Energy Factor (EF) benchmarks across gas, electric, and heat pump technologies. This is essential for plumbing professionals and engineers planning efficient hot water delivery systems.

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3 tools expose this connector's capabilities to your AI agent.

calculate_fhr_requirement

Determines the required First Hour Rating (FHR) needed to meet demand

calculate_tank_capacity

Determines the recommended minimum tank volume in gallons

get_efficiency_comparison

Provides a comparative view of the Energy Factor expectations

See how to talk to your AI agent using Water Heater Sizing Calculator.

How much FHR do I need for a residential house with 4 people using gas heating?

For a residential setup with 4 occupants and gas heating, the required First Hour Rating (FHR) is 52 gallons per hour.

What is the recommended tank size for a commercial building with 20 people?

For a commercial usage profile with 20 occupants, the recommended minimum tank capacity is 450 gallons.

Compare the efficiency of gas vs heat pump water heaters.

Heat pump technology offers a significantly higher Energy Factor (EF) range compared to traditional gas-fired units, making it more efficient for long-term energy savings.

Use the `calculate_frl_requirement` tool by providing the number of occupants, whether the usage is residential or commercial, and the heating fuel type (gas, electric, or heat pump).

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