HeatPumpHeat Pump Costs in Westerham (TN16)
Average air source heat pump installation cost, running costs, and savings for the TN16 postcode district.
Installation Cost
Air Source Heat Pump
£9,990
£2,490
After £7,500 BUS grant
Ground Source Heat Pump
£24,219
£16,719
After £7,500 BUS grant
Costs are area averages and vary by property size, insulation level, and installer. See full cost breakdown.
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Annual Running Cost Comparison
Based on standard electricity rate (24.5p/kWh). Off-peak tariffs reduce heat pump costs significantly. See tariff comparison.
Annual Savings vs Current Heating
| Current Fuel | Annual Cost | Heat Pump Cost | Annual Saving |
|---|---|---|---|
| Mains Gas | £960 | £958 | £2/yr |
| Heating Oil | £1,251 | £958 | £293/yr |
| LPG | £1,481 | £958 | £523/yr |
Running costs assume standard electricity tariff (24.5p/kWh). Off-peak tariffs (7-10p/kWh) improve heat pump savings significantly.
Good with insulation
Heat pump suitability for this area
Off-Gas Grid
16% of homes
Avg EPC Rating
65 (Band D)
COP Estimate
3.4
Above UK average
Typical Property
Detached
Noise Concern
Low concern
16% of properties in TN16 are off the mains gas grid. For homes on oil or LPG, a heat pump is an ideal replacement — saving £293-523/year on heating. The BUS grant covers most of the installation cost.
Frequently Asked Questions
How much does an air source heat pump cost in Westerham?
The average air source heat pump installation in Westerham (TN16) costs £9,990. After the £7,500 BUS grant, the effective cost is £2,490.
Is my home in TN16 eligible for the BUS grant?
Most existing properties in TN16 are eligible for the £7,500 Boiler Upgrade Scheme grant. You need a valid EPC, an MCS-certified installer, and must not have received a previous BUS grant. New builds are excluded.
Will a heat pump save me money in Westerham?
If you're on mains gas, a heat pump could save around £2/year in Westerham. If you're on oil heating, savings are typically £293/year. Savings increase significantly on off-peak electricity tariffs like Octopus Cosy.
What is the COP of a heat pump in Westerham?
The estimated Coefficient of Performance (COP) for heat pumps in Westerham is 3.4. This means for every 1 kWh of electricity used, the heat pump produces 3.4 kWh of heat. This is above the UK average, thanks to the milder climate in this area.
Do I need to insulate my home before getting a heat pump in TN16?
Most homes in TN16 have reasonable insulation (average EPC score 65, band D). While improving insulation always helps, many properties here can proceed directly with a heat pump installation.
Nearby Postcodes
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