How do I calculate the required FHR?

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).

What factors affect the tank capacity recommendation?

The recommended capacity is based on the number of occupants and the usage type. Commercial profiles use a higher multiplier to account for more frequent, continuous demand.

Can I compare different fuel types?

Yes, you can use the `get_efficiency_comparison` tool to see Energy Factor (EF) benchmarks for gas, electric resistance, and heat pump technologies.

Water Heater Sizing Calculator MCP Connector for Claude

A+

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

3 tools Official Updated Oct 1, 2026 Official Vinkius Partner

More Details Connect to Claude

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.

water-heatersizingplumbingefficiencyenergy-audit

Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_nr7TIpWriAAy32tr1iHsvUpKnQRaTMVuG0hpxPJ7/mcp

② Claude Code (terminal)

claude mcp add --transport http water-heater-sizing-calculator https://edge.vinkius.com/vk_preview_nr7TIpWriAAy32tr1iHsvUpKnQRaTMVuG0hpxPJ7/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "water-heater-sizing-calculator": {
      "url": "https://edge.vinkius.com/vk_preview_nr7TIpWriAAy32tr1iHsvUpKnQRaTMVuG0hpxPJ7/mcp"
    }
  }
}

Get full access on Vinkius

The preview token above works for testing. Powered by Vinkius.

Details

Tools: 3
Grade: A+
Score: 100/100
Updated: Oct 1, 2026

Related Connectors

Flare System Design MCP

4 tools Official

Professional engineering tool for designing flare stacks and relief systems using API 520/521 standards.

A+ View details →

Livestock Waterer Planner MCP

4 tools Official

Calculate waterer space, flow rates, and freezing risks for livestock systems.

A+ View details →

HVAC Load Calculator MCP

3 tools Official

Calculate residential heating and cooling loads using simplified Manual J principles.

A+ View details →

Fire Safety Calculator MCP

3 tools Official

Calculate mandatory fire safety infrastructure requirements, including maximum evacuation distance, minimum stair width, and extinguisher density based on local building codes.

A+ View details →