Average Heating Bill in Connecticut → Windham County
$519/mo
$3,114/year
$1.56/sq ft (oil heat, 2,000 sq ft home)
↑ Oil prices are up 5.9% over the past 6 weeks, which affects current heating bills. View price trends.
| Fuel | Local Price | Cost/MMBTU | Annual Cost | Monthly (Heating) |
|---|---|---|---|---|
| Natural Gas Cheapest | $1.89/therm | $20 | $1,732 | $289 |
| Heat Pump | $0.30/kWh | $30 | $2,544 | $424 |
| Heating Oil | $4.29/gallon | $36 | $3,114 | $519 |
| Electric Baseboard | $0.30/kWh | $89 | $7,631 | $1,272 |
Cheapest option for this area
Natural Gas
$1,732/year estimated — saving $1,382/year vs heating oil
Average monthly heating costs during the October–March season for a 2,000 sq ft home in Windham County:
Based on a 2,000 sq ft home with 85% oil furnace efficiency, COP 3.0 heat pump, NOAA 30-year normal heating degree days (6,104 HDD for Windham County), and current EIA state-average energy rates. Oil prices reflect local median from 10 tracked suppliers.
Data updated 2026-07-17.
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If you're staying with oil heat, compare local suppliers to find the best price. The spread in Windham County can be $0.50–$1.00/gallon.
Median: $4.29/gal · 10 suppliers reporting prices
Compare Windham County Suppliers →We'll email you when local heating oil prices drop to your target — no spam, only price drops.