{
 "utility": "Knoxville Utilities Board",
 "utility_legal_name": "Knoxville Utilities Board",
 "eia_id": 10421,
 "state": "TN",
 "state_name": "Tennessee",
 "url": "https://meterwise.app/tn/knoxville-utilities-board/heat-pump-vs-furnace/",
 "markdown_url": "https://meterwise.app/tn/knoxville-utilities-board/heat-pump-vs-furnace/index.md",
 "json_url": "https://meterwise.app/data/v1/utilities/tn/knoxville-utilities-board.json",
 "json_path": "data/v1/utilities/tn/knoxville-utilities-board.json",
 "updated": "2026-11-10",
 "zip_codes_served": 45,
 "quick_answer": "As of November 2026, for a typical 1,800 sq ft gas-heated home on Knoxville Utilities Board electricity rates in Tennessee that needs a new furnace and AC: It depends on your quotes. A heat pump saves about $180 a year to run, so it comes out ahead over 15 years if its quote is no more than $2,700 above the quote for a new furnace and AC.",
 "verdict": "depends on quotes",
 "verdict_code": "depends",
 "assumptions": {
  "floor_area_sqft": 1800,
  "insulation": "average",
  "scenario": "furnace and AC both need replacing",
  "heating_fuel": "gas",
  "lifetime_years": 15
 },
 "electricity": {
  "price_per_kwh_typical_bill": 0.1254,
  "winter_extra_kwh_price": 0.1032,
  "state_average_per_kwh": 0.137,
  "vs_state_average_pct": -8,
  "source": "utility average price (EIA)",
  "tariff": null,
  "tariff_effective": null,
  "note": "Electricity: Knoxville Utilities Board's average residential price in TN (EIA), $0.125/kWh; the winter price of extra kWh is estimated at $0.103/kWh. Enter your own rate for a closer answer."
 },
 "climate": {
  "station": "Knoxville Exp Stn",
  "heating_degree_days": 3911,
  "cooling_degree_days": 1363,
  "normals": "NOAA 1991-2020"
 },
 "heating_fuel": {
  "default": "gas",
  "price_per_therm_gas": 1.242,
  "local_mix": {
   "electric": 0.669,
   "gas": 0.291,
   "oil": 0.001,
   "other": 0.015,
   "propane": 0.024
  }
 },
 "heat_pump": {
  "option": "Heat pump (replaces both)",
  "annual_saving_vs_like_for_like": 183,
  "break_even_quote_gap": 2739
 },
 "options": [
  {
   "id": "like",
   "option": "New gas furnace + new AC",
   "installed_typical": 10983,
   "installed_low": 8595,
   "installed_high": 13370,
   "rebates": 0,
   "energy_cost_per_year": 696,
   "electricity_kwh_per_year": 1922,
   "fuel_per_year": "373 therms",
   "total_15_years": 21423
  },
  {
   "id": "hp",
   "option": "Heat pump (replaces both)",
   "installed_typical": 10983,
   "installed_low": 7640,
   "installed_high": 14325,
   "rebates": 0,
   "energy_cost_per_year": 513,
   "electricity_kwh_per_year": 4607,
   "fuel_per_year": null,
   "total_15_years": 18684
  },
  {
   "id": "hp_cold",
   "option": "High-efficiency cold-climate heat pump",
   "installed_typical": 14325,
   "installed_low": 10505,
   "installed_high": 19100,
   "rebates": 0,
   "energy_cost_per_year": 405,
   "electricity_kwh_per_year": 3649,
   "fuel_per_year": null,
   "total_15_years": 20398
  }
 ],
 "rebates_checked": false,
 "rebate_programs": [],
 "license": "https://creativecommons.org/licenses/by/4.0/",
 "citation": "MeterWise, \"Heat pump vs. gas furnace and AC on Knoxville Utilities Board rates (TN)\", updated 2026-11-10, https://meterwise.app/tn/knoxville-utilities-board/heat-pump-vs-furnace/"
}