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Witten by Bernard Morgan (Engineer) & Adam Apperley (Marketing). Published: February 13, 2024. Updated: February 13, 2024

How Much Electricity Does A Heat Pump Use?

How much electricity does a heat pump use? | Boilerhut

Heat pumps are emerging as a promising alternative to traditional gas boilers. This guide delves into heat pumps’ electricity consumption. We’ll also look at their efficiency, and strategies for minimising your electric bill.

Introduction to Heat Pumps

Heat pumps offer a viable, eco-friendly alternative to conventional heating methods. These systems are gaining traction for efficiently heating homes by extracting natural heat from the environment.

The Efficiency of Heat Pumps

Heat pumps stand out for their exceptional energy efficiency. They transfer heat from external sources into your home, requiring less electricity than the heat they produce.

This process can be powered by renewable energy sources like solar or wind, enhancing their eco-friendliness. For instance, a heat pump can achieve 300% – 400% efficiency, providing 3kW to 4kW of heat from just 1kW of electricity.

Viessmann Air Source Heat Pump - How much electricity does a heat pump use? | Boilerhut

Electricity Consumption of Heat Pumps

A key performance indicator for heat pumps is the Coefficient of Performance (CoP). This compares the electrical input to the heat output. A CoP of three, for example, means the system produces three times as much heat as the electricity it consumes.

Annually, a heat pump might use about 4,000 kWh to meet the average home’s heating needs. This depends on the home’s size, insulation, and the heat pump’s efficiency.

Given the current energy prices, running a heat pump could cost approximately £1,200 per year. But this figure is highly variable and dependent on specific circumstances and energy tariffs.

It is worth noting here that the installation of heat pumps is still very expensive. Your home needs to be highly insulated and have the correct size pipework and radiators. You can read more in our installation guide >

Reducing Your Electric Bill with a Heat Pump

While heat pumps can increase your electricity usage, several strategies can help manage and reduce this impact:

  • Maintain a Consistent Temperature: Constantly adjusting the thermostat can lead to higher energy use. Setting and maintaining a stable temperature can enhance efficiency and lower costs.
  • Optimise Water Heating Settings: Setting the water heating temperature too high can unnecessarily increase electricity use. Adjusting this to a more moderate temperature, such as 40°C, can save you money.
  • Regular Maintenance: Like any heating system, heat pumps require annual servicing to maintain optimal performance. Keeping components like filters and fans clean ensures efficient operation.
  • Integrate Solar PV Panels: Pairing heat pumps with solar panels can reduce reliance on grid electricity, potentially cutting running costs. Visit our sister company for more information about solar installations >

Additional Tips for Lowering Electricity Usage

Beyond optimising your heat pump, other measures can further reduce electricity consumption:

  • Install Reflector Panels: Placing reflector panels behind radiators can enhance heat distribution in your rooms.
  • Switch to Energy-Saving Light Bulbs: Energy-efficient lighting lasts longer and reduces annual energy costs.
  • Run Full Loads in Appliances: Maximising the load in your dishwasher and washing machine can decrease the frequency of use and save energy.
  • Smart Appliance Use: Turning off appliances at the plug and choosing energy-efficient settings and models for household appliances can offer additional savings.


Heat pumps are a compelling option for those seeking to reduce their carbon footprint. Figuring out how much electricity a heat pump will use in your home is a good metric to understand before having one installed.

By understanding and optimising electricity use, homeowners can enjoy the benefits of heat pumps without impacting their electric bills.

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