Property & Tariff Parameters
Configure your annual heat demand and energy tariffs.
kWh
8,000 kWh (Small flat)
15,000 kWh (Avg UK home)
25,000 kWh (Large detached)
SCOP
2.5 (Older radiators)
3.2 (Standard install)
4.5 (Underfloor / A-rated)
p/kWh
18p (Heat pump tariff)
26.11p (Standard Cap)
35p (Peak standard)
p/kWh
5p (Low wholesale)
6.8p (Ofgem 2026 Cap)
12p (High rate)
Annual Running Cost Comparison
Heat Pump Annual Cost
£0
SCOP
Gas Boiler Annual Cost (88% eff.)
£0
Standard
Difference
£0
Status
* Factors in a standard gas boiler efficiency of 88% and heat pump coefficient of performance (SCOP). Assumes £7,500 BUS grant deduction for initial capital comparisons.
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Check Heat Pump Suitability & BUS Grant
Find out if your property qualifies for the £7,500 Boiler Upgrade Scheme and get fixed-price installation quotes.
Check Grant & Get Quotes ➔