Gas Boiler Running Costs
| Home Size | Annual Gas Bill | Monthly |
|---|---|---|
| 1-2 bed flat | \£500\–700 | \£42\–58 |
| 3 bed semi | \£900\–1,200 | \£75\–100 |
| 4-5 bed detached | \£1,200\–1,800 | \£100\–150 |
Based on Ofgem price cap rates. Actual costs depend on insulation, thermostat settings, and boiler efficiency.