Delaware propane prices
The last reading of the season, from the EIA's weekly survey. The series resumes in October.
per gallon · Delaware residential average
Week ending 2026-03-30 · U.S. Energy Information Administration · surveyed weekly, October through March
What Delaware propane costs to heat with
A price per gallon says nothing on its own — equipment efficiency decides how much of it reaches the room. At a mid-efficiency furnace at 90% AFUE, Delaware propane delivers heat at $45.31 per million BTU.
| Equipment | Efficiency | $ / million BTU delivered |
|---|---|---|
| Older propane furnace | 80% AFUE | $50.97 |
| Mid-efficiency | 90% AFUE | $45.31 |
| High-efficiency condensing | 95% AFUE | $42.92 |
The other heating fuels in Delaware
At today's prices natural gas and a heat pump both deliver the same heat for less than propane does here — before any equipment cost.
| Fuel | Price | $ / million BTU delivered |
|---|---|---|
| Natural gas | $22.51/Mcf | $24.12 |
| Electricity (cold-climate heat pump) | 19.38¢/kWh | $25.82 |
| Heating oil (No. 2) | $5.913/gallon | $50.83 |
| Electricity (baseboard) | 19.38¢/kWh | $56.80 |
Electricity is shown twice on purpose: a heat pump and a baseboard heater run on the same electricity but differ by a factor of two, so quoting one figure for "electric heat" would be meaningless. Combustion figures assume a 90% AFUE furnace. Nothing here includes the cost of buying or installing the equipment, which is usually what decides a switch. How the fallbacks work.