1 kW Panel Heater running cost — 6 h daytime (home-worker)
A 1 kW Panel Heater (1,000 W) running 6 hours/day uses 6.00 kWh and costs £1.57/day at the Ofgem cap of 26.11p/kWh (1 July to 30 September 2026).
1 kW Panel Heater — 6 h daytime (home-worker): 1,000 W ÷ 1000 × 6 h × 26.11p/kWh = £1.57/day. Weekly (5 days): £7.83. Annual: £407.32. Coverage: Small-medium room (~12 m²). Source: Energy Saving Trust (wattage, typical/indicative); Ofgem (OGL v3.0).
- Per hour
- 26.1p
- Per day (6 h)
- £1.57
- Per week (5 days)
- £7.83
- Per year
- £407.32
Heater specification
- Rated power
- 1,000 W (1.0 kWh/h)
- Coverage
- Small-medium room (~12 m²)
- Cost per kWh (Ofgem cap)
- 26.11p
- Cost per hour
- 26.1p
Energy Saving Trust — typical 1 kW panel heater rating
How the cost is worked out
- Wattage: 1 kW Panel Heater draws 1,000 W = 1.0 kWh per hour.
- Daily use: 1.0 kWh × 6 h = 6.00 kWh/day.
- Daily cost: 6.00 kWh × 26.11p = £1.57.
- Weekly (5 days): £1.57 × 5 = £7.83.
- Annual: £7.83 × 52 = £407.32.
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Updated each time the Ofgem cap changes.
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1,000 W wattage from Energy Saving Trust — Heating your home guide (typical appliance ratings) (typical/indicative). Unit rate 26.11p/kWh from Ofgem — Energy price cap unit rates and standing charges (1 July to 30 September 2026), OGL v3.0.