Heat Pump Guides
Free guides explaining how heat pump costs work, what affects efficiency, and how to optimize your system.
What is SCOP?
SCOP measures heat pump efficiency across a UK heating season. Higher SCOP = lower running costs.
Best Electricity Tariffs
Time-of-use tariffs like Octopus Cosy can cut costs by 20-30% if you can shift heating to off-peak.
Heat Pump vs Gas Boiler
Direct cost comparison at 2026 energy prices. Heat pumps break even at SCOP 3.5+ or on off-peak tariffs.
Sizing a Heat Pump
Correct sizing (kW output) is critical. Oversized pumps cost more and run less efficiently.
5 Cost Factors
Flow temperature, insulation, thermostat settings, sizing, and tariff choice. Optimize these to save money.
Calculate your costs: Try the heat pump running cost calculator.