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Cost to Heat a Home in Kentucky: Gas vs Propane vs Heat Pump

In Kentucky the cheapest heat last winter was natural gas at $15.68 per MMBtu delivered; electric resistance cost $40.59 — EIA prices, October 2025 to March 2026.

$15.68natural gas, per MMBtu
$40.59electric resistance, per MMBtu
3,835HDD, NOAA state

· Source: EIA STEO September 2026, Natural Gas Monthly, SHOPP · EPM Table 5.6.A (July 2026 data) · next: EIA Winter Fuels Outlook Oct 6, weekly SHOPP prices from October

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Prefilled with Kentucky's last-winter EIA averages; the second preset applies EIA's national outlook. Per-unit rates only; leave out the fixed monthly charge.

Advanced — efficiencies, gas unit, COP, seasonal load
Cheapest heat here: — per MMBtu delivered
—
Cost per million Btu delivered. Fuels: 10 × therm-equivalent price ÷ AFUE. Electricity: 293.07 × $/kWh ÷ COP, resistance fixed at COP 1.00. Marginal unit prices only. Estimate, not a quote.
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Sliders scale the prefilled prices to test sensitivity; the numeric fields stay the precise inputs. Presets:

Cheapest last winter
Natural gas · $15.68/MMBtu
Most expensive
Electric resistance · $40.59/MMBtu
Natural gas
$1.49/therm, winter avg
Propane
$2.67/gal (state)
Heating oil
$3.28/gal (state)
Electricity
13.85¢/kWh, winter avg
Heat pump COP basis
NEEP median, 3.20/2.17/1.90
Heating degree-days, NOAA state
3,835 (Oct 2025–Mar 2026)
EIA STEO East South Central division HDD
2,848 last · 2,864 forecast
Federal credit
§25C ended 31 Dec 2025

Why this number

In Kentucky, the cheapest heat last winter was natural gas at about $15.68 per million Btu delivered, then a cold-climate heat pump at $18.71 and heating oil at $27.88; electric resistance was the most expensive at $40.59 (EIA average prices, October 2025–March 2026, converted with the site’s standard efficiencies). For this winter EIA’s September outlook moves national heating oil +35%, natural gas -10%, propane -5% and electricity +3%; applied to Kentucky’s own prices, natural gas stays cheapest at about $14.16. The calculator below ranks every option from the prices on your bills.

Kentucky paid 13.85¢/kWh for electricity last winter — 11 of 35 on this list of 35 cold-weather states — and $1.49 per therm for gas (21 of 35); propane ran $2.67/gal (22 of 35) and heating oil $3.28/gal (3 of 35). Put on one basis, dollars per million Btu delivered, natural gas was the cheapest heat at $15.68 and electric resistance the dearest at $40.59 — a 25-dollar gap per MMBtu, or about $1,494 over a 60-MMBtu season.

Price basis: Kentucky’s fuel prices are last winter’s measured EIA and SHOPP averages; the this-winter column scales each by EIA’s national STEO change for that fuel — a labelled estimate, not a state forecast.

Kentucky heating cost per MMBtu, fuel by fuel

Kentucky heating cost per million Btu delivered by fuel, last winter measured and this winter estimated
Heating option $/MMBtu delivered, last winter Season cost at 60 MMBtu This winter, EIA outlook applied
Natural gas furnace (95% AFUE) $15.68 $941 $14.16 (-10%)
Propane furnace (92% AFUE) $31.76 $1,905 $30.27 (-5%)
Heating oil boiler (85% AFUE) $27.88 $1,673 $37.50 (+35%)
Heat pump at 47°F (COP 3.20) $12.68 $761 $13.01 (+3%)
Heat pump at 17°F (COP 2.17, NEEP median 3-ton ducted) $18.71 $1,122 $19.19 (+3%)
Heat pump at 5°F (COP 1.90) $21.36 $1,282 $21.92 (+3%)
Electric resistance (COP 1.00) $40.59 $2,435 $41.64 (+3%)

The season column is an illustrative 60 MMBtu of delivered heat; in Kentucky that puts natural gas at $941 and electric resistance at $2,435 for the winter. The this-winter column applies EIA’s national STEO change per fuel to Kentucky’s own price (oil +35% is the large one) — direction, not a state forecast.

The prices behind the table

Kentucky fuel and electricity prices behind the comparison, with source, basis and vintage
Price Last winter average (Oct 2025–Mar 2026) Latest published reading Source and basis
Electricity 13.85¢/kWh 13.81¢/kWh (July 2026) EIA Electric Power Monthly 5.6.A; winter average from the monthly editions
Natural gas $1.49/therm ($15.43/Mcf, 6 of 6 months reported) $33.20/Mcf (June 2026, shoulder-season price) EIA Natural Gas Monthly, residential price by state; 1 Mcf = 10.38 therms
Heating oil $3.28/gal $4.87/gal (week of 2026-03-30) EIA SHOPP weekly survey, Kentucky, Oct 2025–Mar 2026 average
Propane $2.67/gal $2.94/gal (week of 2026-03-30) EIA SHOPP weekly survey, Kentucky, Oct 2025–Mar 2026 average

Kentucky’s June gas figure ($33.20/Mcf) runs 2.2× its winter average ($15.43) because EIA’s residential price is average revenue per Mcf with the fixed charge folded in; the high-volume winter months are the closest published proxy for the marginal rate this page needs.

What Kentucky’s utilities charge

Kentucky's largest electric utilities and what resistance and heat-pump heat cost at each one's average price
Utility (largest by customers) Residential customers ¢/kWh (EIA-861 2024) Resistance $/MMBtu Heat pump at 17°F $/MMBtu
Kentucky Utilities Co 450,673 11.8¢ $34.58 $15.94
Louisville Gas & Electric Co 384,902 12.3¢ $36.05 $16.61
Duke Energy Kentucky 139,405 13.4¢ $39.27 $18.10

The statewide 13.85¢ hides a 1.6¢ spread between Kentucky’s largest utilities, worth $4.69 per MMBtu on resistance heat and $2.16 on a heat pump. The ZIP lookup finds yours.

How Kentucky homes are heated

Share of occupied housing units by main house-heating fuel in Kentucky and the US, ACS 2019–2023 5-year (table B25040), 1,791,991 Kentucky units
Main heating fuel Kentucky homes US homes
Natural gas (utility) 35.7% 46.8%
Electricity 54.3% 40.8%
Propane (bottled, tank or LP gas) 6.3% 4.9%
Heating oil or kerosene 0.7% 4.1%
Wood 2.1% 1.4%

Electricity heats 54.3% of Kentucky’s 1,791,991 occupied homes against 40.8% nationally, with electricity at 54.3%, propane at 6.3% and heating oil at 0.7%. The table above says otherwise for last winter: the households on electricity paid about $40.59 per MMBtu while natural gas delivered the same heat for $15.68, a $24.91 gap on every million Btu.

What the numbers say about Kentucky

At last winter’s average prices, the cheapest way to heat a home in Kentucky was natural gas at about $16 per million Btu delivered, and the most expensive was electric resistance at $41 — a 2.6× spread between the two columns. Gas beat a cold-climate heat pump at 17°F (COP 2.17) by $3.02/MMBtu, and at 47°F (COP 3.2, $12.68) the heat pump pulls ahead. At Kentucky’s winter rates the economic balance point lands about 29°F (COP 2.59 needed). Heating oil averaged $3.28/gal across 26 SHOPP survey weeks and finished the season at $4.87 on March 30, 2026; EIA’s September outlook puts national oil +35% for this winter, which would carry Kentucky’s figure to roughly $38/MMBtu. Propane averaged $2.67/gal in the state survey, with a national -5% outlook for this winter.

Heating degree-days: Kentucky’s own figure and the EIA division forecast

Kentucky itself logged 3,835 population-weighted heating degree-days from October 2025 to March 2026 (NOAA Climate Prediction Center state series, base 65°F), against 3,500 for the contiguous US. The month-by-month table below is a different, coarser series — EIA STEO East South Central census division degree-days, the only one with a forecast for the coming winter; it groups Kentucky with its neighbours and is not a Kentucky figure:

EIA STEO East South Central census division heating degree-days (not a state figure): last winter actual and this winter forecast, month by month
Last winter (actual) HDD This winter (STEO forecast) HDD
Oct 2025 141 Oct 2026 165
Nov 2025 394 Nov 2026 414
Dec 2025 674 Dec 2026 629
Jan 2026 828 Jan 2027 710
Feb 2026 563 Feb 2027 543
Mar 2026 247 Mar 2027 404
Oct–Mar total 2,848 Oct–Mar total 2,864

January in the EIA East South Central census division (the coarse series that groups Kentucky with its neighbours) averaged about 38°F last winter (65°F minus degree-days per day) and is forecast at 42°F for January 2027, a season move of +16 degree-days. Degree-days set how much heat Kentucky needs, the table above sets the price per unit, and the bill jump calculator multiplies the two.

Heating oil prices in Kentucky

EIA’s weekly SHOPP survey priced residential No. 2 heating oil in Kentucky at $3.08/gal in the first October week of the 2025-26 season and $4.87 in the final March week — a season average of $3.28, low $2.86, high $4.87, against a national average of $4.01. The survey resumes in October 2026; the weekly tracker carries every state.

Weekly residential heating oil price in Kentucky versus the US average, EIA SHOPP, 2025-26 season
Survey week Kentucky $/gal US $/gal Kentucky vs US
Oct 6, 2025 $3.08 $3.56 -0.480
Oct 13, 2025 $3.04 $3.54 -0.502
Oct 20, 2025 $3.03 $3.53 -0.497
Oct 27, 2025 $3.11 $3.60 -0.490
Nov 3, 2025 $3.13 $3.63 -0.499
Nov 10, 2025 $3.15 $3.72 -0.566
Nov 17, 2025 $3.21 $3.76 -0.549
Nov 24, 2025 $3.23 $3.79 -0.560
Dec 1, 2025 $3.08 $3.74 -0.663
Dec 8, 2025 $3.07 $3.73 -0.661
Dec 15, 2025 $3.00 $3.70 -0.699
Dec 22, 2025 $2.93 $3.65 -0.719
Dec 29, 2025 $2.91 $3.65 -0.738
Jan 5, 2026 $2.90 $3.64 -0.744
Jan 12, 2026 $2.86 $3.62 -0.760
Jan 19, 2026 $2.88 $3.67 -0.783
Jan 26, 2026 $2.95 $3.84 -0.890
Feb 2, 2026 $3.02 $4.05 -1.027
Feb 9, 2026 $3.00 $4.07 -1.076
Feb 16, 2026 $3.03 $4.07 -1.046
Feb 23, 2026 $3.14 $4.10 -0.961
Mar 2, 2026 $3.29 $4.27 -0.983
Mar 9, 2026 $4.33 $5.09 -0.763
Mar 16, 2026 $4.39 $5.17 -0.775
Mar 23, 2026 $4.69 $5.57 -0.880
Mar 30, 2026 $4.87 $5.54 -0.663

Where the heat pump crosses over in Kentucky

At last winter’s averages of 13.85¢/kWh and $1.49/therm, a heat pump beats a 95% gas furnace whenever its COP exceeds 2.59. Kentucky’s economic balance point on the NEEP median curve is about 29°F (COP 2.59 needed); the crossover tool runs seven named units at Kentucky’s prices and the dual-fuel calculator turns the answer into a changeover setting.

From October 6 the EIA Winter Fuels Outlook adds household expenditure by region and the weekly SHOPP survey restarts, giving Kentucky fresh state propane and heating-oil readings on the weekly tracker .

Frequently asked questions

What is the cheapest way to heat a home in Kentucky?

On last winter’s EIA average prices, natural gas at about $15.68 per million Btu delivered, against a cold-climate heat pump at $18.71 and heating oil at $27.88. Kentucky’s ranking uses a 95% gas furnace, 92% propane furnace, 85% oil boiler and a heat pump at COP 2.17; it is per unit of heat, so Kentucky’s fixed monthly charges and equipment prices sit outside it.

Is a heat pump cheaper than gas in Kentucky?

At Kentucky’s last-winter averages of 13.85¢/kWh and $1.49/therm, a heat pump needs a COP above 2.59 to beat a 95% furnace. Against Kentucky’s required COP 2.59, the NEEP medians (3.20/2.17/1.90 at 47/17/5°F) mean the heat pump wins on mild days and loses in a cold snap in Kentucky; the balance point is about 29°F (COP 2.59 needed).

How much will heating oil and propane cost in Kentucky this winter?

Nobody publishes a Kentucky forecast; applying EIA’s September STEO national changes (+35% oil, -5% propane) to Kentucky’s last-winter $3.28 and $2.67 per gallon gives roughly $4.41 and $2.55 — the ’this winter’ column. Kentucky’s weekly SHOPP readings resume in October; the Winter Fuels Outlook (October 6) adds household expenditure on top.

Where do the Kentucky prices on this page come from?

13.85¢/kWh is the EIA Electric Power Monthly average for Kentucky over the October 2025–March 2026 editions (13.81¢ in July 2026); the share of homes on each heating fuel is Census ACS 2019–2023 5-year table B25040; $15.43/Mcf is the Natural Gas Monthly winter average (6 months), converted at 10.38 therms per Mcf; oil $3.28 and propane $2.67 per gallon are SHOPP state season averages; degree-days are the STEO East South Central series. Only the ’this winter’ column is an estimate.

How we calculated this

Worked for Kentucky at last winter’s averages: gas 10 × $1.49 ÷ 0.95 = $15.68/MMBtu; propane 10 × ($2.67 ÷ 0.91452) ÷ 0.92 = $31.76; oil 10 × ($3.28 ÷ 1.385) ÷ 0.85 = $27.88; resistance 293.07 × 0.1385 = $40.59; heat pump $40.59 ÷ 2.17 = $18.71. The this-winter column multiplies each by EIA’s national STEO change for that fuel (electricity ×1.026, gas ×0.903, propane ×0.953, oil ×1.345).

Sources: U.S. Energy Information Administration (EIA) electricity rates · DSIRE incentive records · public IRS/OBBBA guidance. Figures are modeled estimates, not quotes or tax advice. See our methodology.

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