How Much Does It Cost to Run a Heat Pump for an Hour?
Understanding heat pump running costs helps you budget effectively and compare savings against traditional heating systems.
Heat Pump Hourly Running Costs Explained
The cost to run a heat pump per hour depends on several factors including the size of your heat pump, current electricity prices, and the efficiency (COP) of your system. Here's what you can typically expect:
Small System
13-18p
per hour (5kW system)
Medium System
18-24p
per hour (8kW system)
Large System
24-32p
per hour (12kW system)
How to Calculate Your Hourly Cost
Formula: Hourly Cost = (Heat Pump Output ÷ COP) × Electricity Rate
Example: An 8kW heat pump with a COP of 3.5 running on electricity at 24p/kWh:
(8kW ÷ 3.5) × £0.24 = £0.55 per hour of full output
Note: Heat pumps don't run at full capacity all the time. Most modulate their output based on heating demand.
Comparing Heat Pump Costs to Gas Boilers
Despite electricity costing more per kWh than gas, heat pumps are often cheaper to run because they're 3-4 times more efficient:
- Gas boiler: To produce 8kWh of heat costs ~40p (at 8p/kWh gas, 90% efficiency)
- Heat pump: To produce 8kWh of heat costs ~55p (at 24p/kWh electricity, COP 3.5)
- With solar panels: Running costs can drop by 50-70% when using self-generated electricity
Related Guides & Resources
Heat Pump Systems
Samsung & Vaillant air source heat pump installation.
BUS Grant (£7,500)
How to claim your Boiler Upgrade Scheme grant.
How Heat Pumps Work
Understand the technology behind air source heat pumps.
Radiators for Heat Pumps
Sizing guide, upgrade costs, and radiator compatibility.
Heat Pump Costs
Full pricing guide for heat pump installation.
Are Heat Pumps Worth It?
Honest analysis of heat pump value for UK homeowners.
ASHP Installation Manchester
MCS-certified heat pump installers serving Greater Manchester.
Solar Panels
Combine solar with a heat pump for maximum savings.
Government Grants
All available grants for renewable energy upgrades.
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Calculate Your Potential Savings
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