{
  "slug": "gas-vs-electric-water-heater-cost",
  "title": "Gas vs Electric Water Heater Cost Calculator",
  "heading": "Gas vs Electric Water Heater Cost Calculator",
  "category": "financial",
  "url": "https://www.revenuelab.fyi/toolbox/gas-vs-electric-water-heater-cost",
  "summary": "Compare unit price, installation, and annual operating cost between gas and electric water heaters.",
  "description": "Gas water heaters usually cost more to install if you don't already have a gas line, but run cheaper per year in most markets; electric units are cheaper and simpler to install but cost more to operate where electricity is pricey relative to gas. This tool totals purchase and install cost plus annual operating cost across the unit's typical lifespan for each fuel type.",
  "formula": "Total Cost = Unit + Install Cost + Annual Operating Cost × Lifespan Years.",
  "dateModified": "2026-09-06",
  "run_url": "https://www.revenuelab.fyi/api/public/calc?tool=gas-vs-electric-water-heater-cost",
  "inputs": [
    {
      "id": "gasUnitInstall",
      "label": "Gas heater unit + install",
      "kind": "number",
      "hint": null,
      "default": 1800,
      "unit": "$",
      "min": 0,
      "max": null
    },
    {
      "id": "electricUnitInstall",
      "label": "Electric heater unit + install",
      "kind": "number",
      "hint": null,
      "default": 1200,
      "unit": "$",
      "min": 0,
      "max": null
    },
    {
      "id": "gasAnnual",
      "label": "Gas annual operating cost",
      "kind": "number",
      "hint": null,
      "default": 250,
      "unit": "$",
      "min": 0,
      "max": null
    },
    {
      "id": "electricAnnual",
      "label": "Electric annual operating cost",
      "kind": "number",
      "hint": null,
      "default": 450,
      "unit": "$",
      "min": 0,
      "max": null
    },
    {
      "id": "lifespan",
      "label": "Expected lifespan",
      "kind": "number",
      "hint": null,
      "default": 10,
      "unit": null,
      "min": 1,
      "max": 20
    }
  ],
  "outputs": [
    {
      "id": "winner",
      "label": "Lower total cost option",
      "format": "raw",
      "hint": null,
      "primary": true
    },
    {
      "id": "gasTotal",
      "label": "Gas water heater total cost",
      "format": "currency",
      "hint": null,
      "primary": false
    },
    {
      "id": "elecTotal",
      "label": "Electric water heater total cost",
      "format": "currency",
      "hint": null,
      "primary": false
    },
    {
      "id": "diff",
      "label": "Total cost difference",
      "format": "currency",
      "hint": null,
      "primary": false
    },
    {
      "id": "breakevenYears",
      "label": "Breakeven point",
      "format": "duration",
      "hint": null,
      "primary": false
    }
  ],
  "worked_example": {
    "inputs": [
      "Gas heater unit + install: 1800 $",
      "Electric heater unit + install: 1200 $",
      "Gas annual operating cost: 250 $",
      "Electric annual operating cost: 450 $",
      "Expected lifespan: 10"
    ],
    "outputs": [
      "Lower total cost option: Gas",
      "Gas water heater total cost: $4,300",
      "Electric water heater total cost: $5,700",
      "Total cost difference: $1,400",
      "Breakeven point: 3"
    ]
  },
  "how_to": {
    "title": "How to use this",
    "steps": [
      "Enter gas heater unit + install ($).",
      "Enter electric heater unit + install ($).",
      "Enter gas annual operating cost ($).",
      "Enter electric annual operating cost ($).",
      "Enter expected lifespan.",
      "Read your lower total cost option on the right — it updates as you type.",
      "Hit Share to keep the scenario or send it to someone."
    ]
  },
  "scenarios": [
    {
      "name": "Conservative",
      "description": "Lower-end numbers — what if things land soft?",
      "values": {
        "gasUnitInstall": 1100,
        "electricUnitInstall": 700,
        "gasAnnual": 150,
        "electricAnnual": 275,
        "lifespan": 6
      }
    },
    {
      "name": "Typical",
      "description": "Defaults — the most common real-world setup.",
      "values": {
        "gasUnitInstall": 1800,
        "electricUnitInstall": 1200,
        "gasAnnual": 250,
        "electricAnnual": 450,
        "lifespan": 10
      }
    },
    {
      "name": "Ambitious",
      "description": "Higher-end numbers — what if things really pop?",
      "values": {
        "gasUnitInstall": 2900,
        "electricUnitInstall": 1900,
        "gasAnnual": 400,
        "electricAnnual": 725,
        "lifespan": 16
      }
    }
  ],
  "limitations": [
    "Results are estimates before tax, fees, and inflation unless an input explicitly covers them.",
    "Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.",
    "This is educational maths, not financial advice. Check anything contractual with the lender or your accountant."
  ],
  "faq": [
    {
      "q": "Why is gas install often more expensive?",
      "a": "If a home lacks an existing gas line and vent, running one and adding proper venting can add $500-$1,500 to installation versus a simple electric swap."
    },
    {
      "q": "Which lasts longer?",
      "a": "Both types typically last 8-12 years, though electric tank units can run slightly longer since there's no burner or venting to corrode."
    },
    {
      "q": "What if my electricity is unusually cheap?",
      "a": "In regions with cheap hydro or solar-heavy grids, electric can beat gas outright — plug your local utility rates into the annual cost fields to see your actual breakeven."
    }
  ],
  "related": [
    "https://www.revenuelab.fyi/toolbox/tankless-vs-tank-water-heater-cost",
    "https://www.revenuelab.fyi/toolbox/heat-pump-vs-gas-furnace-cost"
  ],
  "license": "CC-BY-4.0",
  "citation": "RevenueLab — Gas vs Electric Water Heater Cost Calculator (https://www.revenuelab.fyi/toolbox/gas-vs-electric-water-heater-cost)"
}