Estimated annual bill
£0
£0 per month
Home type
Occupants
People in household
3
18
Thermostat
Heating
20°
Set to
Setpoint
20°C
15°C25°C
Insulation / EPC rating
Selected: D — 150 kWh/m²
Estimated monthly bill
£0
Estimated annual bill £0
Potential savings
🌡️
Thermostat vs 20°C
Extra £0/yr
At the 20°C baseline
🏠
Better insulation
Save £0/yr
D→C saves ~27% heating
⏰
Smart scheduling
Save £0/yr
Heat only when home — typically 10–15% off heating.
Bill breakdown
Energy Bill Predictor
Estimate your annual energy costs based on your home, habits and heating system
Insulation rating
Selected: D — 150 kWh/m²
Estimated monthly bill
£0
Estimated annual bill
£0
CO₂ 0 kg/yr
Thermostat
Heating
20°
Set to
Heating system
🔥
Gas Boiler
Traditional central heating
♻️
Heat Pump
Electric, COP ~3
🏢
HIU / District
Block or district heating
Hot water tank
Off — combi / on-demand
With no tank, hot water is heated on demand. Efficient for 1–3 people, less so for larger households.
All systems — with and without tank:
Tariffs
Apr 2025
Jan 2025
Oct 2024
Custom
Potential savings
🌡️
Thermostat vs 20°C
£0/yr
At the 20°C baseline
🏠
Better insulation
Save £0/yr
D→C saves ~27% heating
⏰
Smart scheduling
Save £0/yr
Heat only when home — typically 10–15% off heating.
About your estimate
See what can make a difference to your energy bill
Use the predictor to compare how your thermostat temperature, EPC rating, household size, heating system and energy tariff could affect your energy costs. Change one setting at a time to see where the biggest differences may be.
Property types use typical floor areas rather than exact measurements. A 2-bedroom and 3-bedroom home can often be fairly similar in size, so changing between two close property types may only make a small difference to the estimate.
It can also give you an idea of the potential benefit of lowering your thermostat, improving insulation or using smarter heating schedules.
This is an estimate for comparison purposes rather than an exact bill prediction.
Actual energy use will vary with your property, insulation, weather, heating habits
and tariff.