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Understanding Air Source Heat Pump Costs: A Comprehensive Guide

The first element of cost consideration when investing in an Air Source Heat Pump (ASHP) is the initial purchase and installation price. As of 2023, the average cost of purchasing and installing an ASHP in the UK ranges from £6,000 to £12,000, depending on the size of your property and the type of ASHP system you choose.

While this may seem high, it’s important to consider the long-term savings you will accrue. A properly installed ASHP can save you between £400 and £1,000 annually on heating bills compared to traditional oil or gas boilers. Not to mention, it’s a significant step towards reducing your carbon footprint.

Government Grants and Incentives

The UK Government’s Renewable Heat Incentive (RHI) program offers financial incentives for households using renewable heating technology. This means that homeowners who install an ASHP can receive quarterly cash payments over seven years, which can significantly offset the installation cost. As an MCS certified installer, Herts Air Source can guide you through this process and ensure you’re eligible for these benefits.

Operational Costs

The operational costs of an ASHP are substantially lower than those of traditional heating systems. They are highly efficient, with most models offering a Coefficient of Performance (COP) between 2.5 and 3. This means for every kilowatt of electricity used, they generate 2.5 to 3 kilowatts of heat.

Remember, to maximise the efficiency of your ASHP, it’s crucial to use it correctly. Unlike traditional heating systems, ASHPs perform optimally when run continuously at a lower temperature.

Maintenance and Longevity

ASHPs require servicing once a year to ensure they are running optimally. The cost of servicing an ASHP is generally around £100-£200 annually.

When it comes to longevity, an ASHP can last for around 20 years or more if properly maintained. This durability, coupled with reduced heating bills and RHI payments, makes ASHPs an excellent long-term investment.

Factors that Affect ASHP Efficiency and Cost

The overall efficiency and cost-effectiveness of an ASHP system can be influenced by a few factors:

  1. Home Insulation: Proper insulation is crucial to reduce heat loss, which in turn boosts the efficiency of your ASHP.
  2. Heat Distribution System: Underfloor heating or larger radiators work best with ASHPs due to the system’s lower operating temperatures.
  3. Property Size and Heat Demand: Larger properties or properties with high heat demand might require larger, slightly more expensive systems.


The upfront cost of installing an ASHP can be a significant investment, but it’s important to look at the big picture. Lower running costs, coupled with longevity and government incentives, make ASHPs a cost-effective, environmentally friendly heating solution for your home.

As specialists in ASHP installation and maintenance, Herts Air Source is here to guide you through every step of the process, from choosing the right system to ongoing maintenance and support.

Looking for Expert Help with
Air Source Heat Pump
Installation & Servicing?

Looking for Expert Help with
Air Source Heat Pump
Installation & Servicing?

Contact Herts Air Source – our specialists are ready to assist with your heating needs.

Contact Herts Air Source – our specialists are ready to assist with your heating needs.