♨️Heat Pump Calculator
Heat Pump Calculator Cost & Efficiency Calculator
Heating load (HDD) & seasonal efficiency (SCOP)
📍Location-calibrated simulation by town or outward postcode:
⌘K
Heat Pump Power Model
Heat Pump Operating Cost London
Determine required electric power and heating costs based on climate zone (2,976 HDD).
Electricity Needed
3,947Thermal Heating Demand
kWh
Building Insulation Standard
Seasonal COP (SCOP)
SCOP
Electricity Unit Rate Auto-Sync
p/kWh
Currently calculating with: 25,4 ct/kWh
📍London (2,976 HDD)
Heat Energy Source Split
Free Ambient Heat11,053 kWh
air / groundElectric Drive Power3,947 kWh
SCOP 3.8Annual Heating Power Bill
£1,005/ yr
Monthly Average~£84 / mo
Heating SetupStandard Grid
❓Frequently Asked Questions: Heat Pump Calculator
Key UK engineering benchmarks, Ofgem standards, and clean energy incentives at a glance:
What is the Seasonal Coefficient of Performance (SCOP)?▼
The SCOP measures real-world seasonal heating efficiency across varying ambient temperatures. A heat pump with an SCOP of 3.6 delivers 3.6 kWh of heat output for every 1 kWh of electricity consumed.
Can an air source heat pump heat a traditional uninsulated British home?▼
Yes. Modern monobloc heat pumps (often using natural R290 refrigerant) produce flow temperatures up to 65°C to 70°C. Sizing heat emitters (radiators) accurately ensures high efficiency without requiring major fabric overhauls.
What is the difference between Monobloc and Split heat pumps?▼
A monobloc system encloses all refrigeration components sealed outdoors, pumping heated water into the home. A split system separates the outdoor compressor and indoor hydrobox, connected by refrigerant pipework.
How does the £7,500 Boiler Upgrade Scheme (BUS) grant work?▼
The UK Government's Boiler Upgrade Scheme (BUS) provides an upfront voucher of £7,500 towards air source or ground source heat pump installations in England and Wales, applied directly by your MCS-certified installer.
How loud is an air source heat pump outdoor unit?▼
MCS-certified heat pump outdoor units undergo strict MCS 020 sound assessments. In quiet operating modes, modern units emit around 35 to 42 dB(A) at 1 metre—comparable to the hum of a modern domestic refrigerator.
Are heat pumps exempt from UK VAT?▼
Yes. Domestic heat pump installations benefit from the government's 0% VAT relief on energy-saving materials, saving homeowners 20% on both equipment and labour costs.
💡
Suggestion or Feature Request?
Are you missing a specific calculation, UK regional metric, or export tariff? We welcome any feedback from homeowners and energy professionals.
🐞
Report an Issue
Did you spot an inaccurate calculation, incorrect town data, or broken link? Let us know directly so we can patch it immediately.
