ENERGY STAR Certified Water Heaters: Models, UEF, Fuel, Heat Pump Type, Storage Volume

energystar/certified-water-heaters

Rows from the ENERGY STAR certified water heater list: brand, model name and number, type, fuel, heat pump type, storage volume in gallons, uniform energy factor (UEF), first hour rating, annual electricity use, connected capability and certification date. Choose how many rows to return, page with an offset, or narrow with a text search such as a brand or model number. Every number comes back as a string, as the publisher sends it. U.S. EPA ENERGY STAR data, served by Eden Engine; not an official ENERGY STAR product.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $5.

Data source

ENERGY STAR (U.S. Environmental Protection Agency)

Source: U.S. EPA ENERGY STAR Certified Product data (data.energystar.gov), ENERGY STAR Certified Water Heaters dataset. The ENERGY STAR name and mark are registered trademarks of the U.S. Environmental Protection Agency. Served by Eden Engine; not an official ENERGY STAR product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

Connect once and your AI can find and run this tool, and any other it needs.

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agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "energystar/certified-water-heaters" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "energystar/certified-water-heaters" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "energystar/certified-water-heaters", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "energystar/certified-water-heaters", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0026

Updated: Oct 20, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "limit"
  ],
  "properties": {
    "q": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "Text to search for across the row, for example a brand such as Rheem or a model number. Leave out for no filter."
    },
    "limit": {
      "type": "integer",
      "maximum": 100,
      "minimum": 1,
      "description": "How many rows to return, 1 to 100. Rows come back in a stable product-id order, so offset paging does not repeat or skip rows."
    },
    "offset": {
      "type": "integer",
      "minimum": 0,
      "description": "Rows to skip before the first one returned, for paging. Leave out to start at the first row."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "results"
  ],
  "properties": {
    "results": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "fuel": {
            "type": "string"
          },
          "type": {
            "type": "string",
            "description": "For example electric storage or gas storage."
          },
          "pd_id": {
            "type": "string",
            "description": "The ENERGY STAR product id."
          },
          "brand_name": {
            "type": "string"
          },
          "model_name": {
            "type": "string"
          },
          "model_number": {
            "type": "string"
          },
          "date_certified": {
            "type": "string",
            "description": "Certification date, without a time zone."
          },
          "heat_pump_type": {
            "type": "string"
          },
          "connected_capable": {
            "type": "string"
          },
          "electric_usage_kwh_yr": {
            "type": "string",
            "description": "Annual electricity use in kWh, as a string."
          },
          "storage_volume_gallons": {
            "type": "string",
            "description": "Tank storage volume in gallons, as a string."
          },
          "first_hour_rating_gallons": {
            "type": "string",
            "description": "First hour rating in gallons, as a string."
          },
          "uniform_energy_factor_uef": {
            "type": "string",
            "description": "UEF efficiency, as a string."
          }
        },
        "additionalProperties": true
      },
      "description": "One entry per certified model, possibly empty."
    }
  },
  "description": "The matching certified water heaters rows.",
  "additionalProperties": false
}