Heating costs in Hawaii
The cheapest way to heat a home in Hawaii at today's average prices is heat pump ($48.50 per million BTU of heat), then natural gas ($59.95). A heat pump costs 19.1% less to run than a gas furnace.
Natural gas $55.95/Mcf winter 2025–26 avg. · Jul 2026: $65.72
Electricity 47.2¢/kWh August 2026 · +22.5% y/y
Cheapest way to heat a home in Hawaii cost of the same amount of heat
Heat source Price used Per million BTU of heat Per winter
Heat pump cheapest 41.4¢/kWh ÷ COP 2.5
$48.50 $2,425 Natural gas $55.95/Mcf · winter 2025–26 avg.
$59.95 $2,997 Electric resistance 41.4¢/kWh · winter 2025–26 avg.
$121.24 $6,062
How we compare: fuel price ÷ (energy content × efficiency). Assumptions — heating oil 138,500 BTU/gal at 85%, propane 91,500 BTU/gal at 90%, natural gas 1,037,000 BTU per Mcf at 90%, electric resistance 100%, heat pump seasonal COP 2.5 (lower in very cold weather). Gas and electricity use last winter's average price; oil and propane the latest weekly survey. Delivery fees, tank rental and fixed charges vary and are not included.
Natural gas price in Hawaii $43 $49 $55 $61 $67 2024 2025 2026 July 2023: $55.09 per thousand cubic feet August 2023: $58.43 per thousand cubic feet September 2023: $56.20 per thousand cubic feet October 2023: $49.98 per thousand cubic feet November 2023: $49.15 per thousand cubic feet December 2023: $49.24 per thousand cubic feet January 2024: $45.30 per thousand cubic feet February 2024: $49.26 per thousand cubic feet March 2024: $56.11 per thousand cubic feet April 2024: $54.62 per thousand cubic feet May 2024: $51.22 per thousand cubic feet June 2024: $50.48 per thousand cubic feet July 2024: $49.02 per thousand cubic feet August 2024: $44.85 per thousand cubic feet September 2024: $45.70 per thousand cubic feet October 2024: $47.43 per thousand cubic feet November 2024: $47.13 per thousand cubic feet December 2024: $44.37 per thousand cubic feet January 2025: $46.61 per thousand cubic feet February 2025: $47.79 per thousand cubic feet March 2025: $47.43 per thousand cubic feet April 2025: $48.96 per thousand cubic feet May 2025: $49.54 per thousand cubic feet June 2025: $48.60 per thousand cubic feet July 2025: $57.34 per thousand cubic feet August 2025: $60.54 per thousand cubic feet September 2025: $57.71 per thousand cubic feet October 2025: $56.92 per thousand cubic feet November 2025: $57.88 per thousand cubic feet December 2025: $51.74 per thousand cubic feet January 2026: $52.13 per thousand cubic feet February 2026: $57.11 per thousand cubic feet March 2026: $60.89 per thousand cubic feet April 2026: $70.84 per thousand cubic feet June 2026: $66.84 per thousand cubic feet July 2026: $65.72 per thousand cubic feet $43 $49 $55 $61 $67 2024 2025 2026 July 2023: $55.09 per thousand cubic feet August 2023: $58.43 per thousand cubic feet September 2023: $56.20 per thousand cubic feet October 2023: $49.98 per thousand cubic feet November 2023: $49.15 per thousand cubic feet December 2023: $49.24 per thousand cubic feet January 2024: $45.30 per thousand cubic feet February 2024: $49.26 per thousand cubic feet March 2024: $56.11 per thousand cubic feet April 2024: $54.62 per thousand cubic feet May 2024: $51.22 per thousand cubic feet June 2024: $50.48 per thousand cubic feet July 2024: $49.02 per thousand cubic feet August 2024: $44.85 per thousand cubic feet September 2024: $45.70 per thousand cubic feet October 2024: $47.43 per thousand cubic feet November 2024: $47.13 per thousand cubic feet December 2024: $44.37 per thousand cubic feet January 2025: $46.61 per thousand cubic feet February 2025: $47.79 per thousand cubic feet March 2025: $47.43 per thousand cubic feet April 2025: $48.96 per thousand cubic feet May 2025: $49.54 per thousand cubic feet June 2025: $48.60 per thousand cubic feet July 2025: $57.34 per thousand cubic feet August 2025: $60.54 per thousand cubic feet September 2025: $57.71 per thousand cubic feet October 2025: $56.92 per thousand cubic feet November 2025: $57.88 per thousand cubic feet December 2025: $51.74 per thousand cubic feet January 2026: $52.13 per thousand cubic feet February 2026: $57.11 per thousand cubic feet March 2026: $60.89 per thousand cubic feet April 2026: $70.84 per thousand cubic feet June 2026: $66.84 per thousand cubic feet July 2026: $65.72 per thousand cubic feet Monthly · summer prices per Mcf run higher because fixed charges are spread over less gas Average price paid by homes, including delivery charges. Source: EIA Natural Gas Monthly.
Questions Is a heat pump cheaper than gas in Hawaii? Yes, at average prices: a heat pump (seasonal COP 2.5) delivers heat for $48.50 per million BTU, 19.1% less than a 90% gas furnace at $59.95.
What is the cheapest way to heat a home in Hawaii? At current average prices: heat pump $48.50, natural gas $59.95, electric resistance $121.24 per million BTU of delivered heat (cheapest first).