Water heater recovery rate (gallons an hour), tank heat-up time and energy cost
Water heater recovery rate (gallons an hour), tank heat-up time and energy cost from input power, efficiency and rise.
Answeringour last check, 2026-10-21
1 of 1checks answered this week
367 msmedian answer time
$0.02listed price per call
$0.02price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://home-energy-calc.x402tookit.com/water-heater
| Category | Everything else |
|---|---|
| Provider host | home-energy-calc.x402tookit.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-21 | valid payment request | 402 | $0.02 | 367 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"fuel": "electric",
"inputPower": 4.5,
"pricePerKwh": 0.16,
"riseF": 70,
"tankGallons": 50
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"efficiency": {
"description": "Recovery efficiency 0.3 to 1 (default 0.98 electric, 0.78 gas and propane, 0.80 oil)",
"type": "number"
},
"fuel": {
"description": "electric, gas (natural gas), propane or oil",
"type": "string"
},
"inputPower": {
"description": "Heating input: kW for electric (for example 4.5), BTU/h for gas, propane or oil (for example 40000)",
"type": "number"
},
"pricePerKwh": {
"description": "Electricity price per kWh (electric)",
"type": "number"
},
"pricePerTherm": {
"description": "Gas price per therm (gas)",
"type": "number"
},
"riseF": {
"description": "Temperature rise in F (hot setpoint minus cold inlet), 10 to 120; for 50 F to 120 F use 70",
"type": "number"
},
"tankGallons": {
"description": "Tank size in gallons, for heat-up time and cost",
"type": "number"
}
},
"required": [
"fuel",
"inputPower",
"riseF"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"costPerTankHeating": {
"type": [
"null",
"number"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"efficiency": {
"type": [
"null",
"number"
]
},
"energyToHeatTankBtu": {
"type": [
"null",
"number"
]
},
"energyToHeatTankKwh": {
"type": [
"null",
"number"
]
},
"formula": {
"type": [
"null",
"string"
]
},
"fuel": {
"type": [
"null",
"string"
]
},
"heatUpHours": {
"type": [
"null",
"number"
]
},
"heatUpMinutes": {
"type": [
"null",
"number"
]
},
"inputBtuPerHour": {
"type": [
"null",
"number"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"recoveryGallonsPerHour": {
"type": [
"null",
"number"
]
},
"recoveryLitresPerHour": {
"type": [
"null",
"number"
]
},
"riseF": {
"type": [
"null",
"number"
]
},
"source": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"tankGallons": {
"type": [
"null",
"number"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}