How long does it take to install a heat pump?

Key takeaways:

• A typical air source heat pump installation takes two to four days
• The installation timeline can be longer or shorter depending on the needs of your property
• Major factors impacting your installation timeline can include radiator and electrical upgrades

Upgrading your home’s heating and cooling system with a heat pump is an energy-efficient investment, but how long does installation take? Typically, it lasts 2-5 days, depending on factors like property accessibility, existing ductwork, and electrical requirements. Here’s what influences the timeline and how you can prepare for a smooth process.

Typical installation timeline

Every aspect of a heat pump installation goes more smoothly with educated and competent installers. At Aira, we train all of our installers extensively, so you can rest assured that you are in good (and efficient) hands. With Aira technicians, here’s what you can expect:

1. Initial assessment and planning: Conducted by technical surveyors, this phase includes a heat loss calculation and site evaluation. Adjustments, such as insulation upgrades, may be required. You’ll also need to prepare the site for the outdoor unit by levelling the ground or choosing a composite pad.
2. Old system removal: Transitioning from a gas boiler involves disconnecting and safely disposing of old components, including hazardous refrigerants. This step may take additional time but ensures a seamless shift to modern heating.
3. Fitting new components: Installers place the outdoor unit, connect it to the indoor system, and integrate components like circulation pumps and control boxes. System flushing, testing, and commissioning finalise the setup, ensuring peak performance.

Weather & planning permissions

Weather can impact installation efficiency. While rain or snow requires extra precautions, skilled installers can mitigate these challenges.

Most air-source heat pumps in the UK are classified as “permitted developments,” meaning planning permissions aren’t required unless your home is listed or in a conservation area. When needed, securing permissions can take several weeks, but in those cases Aira will handle all of the planning permissions on your behalf so your switch is hassle-free.

Things to keep in mind during installation

• Radiator upgrades or replacements: Air source heat pumps operate at lower temperatures than traditional boilers, which may make existing radiators less effective at distributing heat. To maximise efficiency and comfort, you might need to install larger radiators or upgrade to low-temperature models like underfloor heating systems. This can add time and cost to the installation process but ensures the system performs optimally.
• Electrical panel upgrades: Air source heat pumps typically require a dedicated power supply, which may exceed the capacity of older electrical panels. Upgrading the panel to accommodate the additional load ensures safety and compliance with electrical codes but can extend the installation timeline.
• Wiring issues: Faulty wiring can pose risks and hinder the heat pump’s operation. Identifying and addressing these issues—whether it’s installing new wiring or repairing existing connections—requires expertise and care.
• Blown fuses or circuits: Electrical problems, such as blown fuses or tripped circuits, may occur during or after installation, especially in homes with aging electrical systems. These issues must be resolved promptly to prevent damage to the heat pump and ensure reliable operation.

These challenges highlight the importance of hiring experienced professionals for the installation. Skilled technicians can anticipate potential complications, address them efficiently, and ensure the system is installed correctly. Aira Clean Energy Technicians receive special training, so you can rest assured that your installation is being handled by pros.

Conclusion

Heat pump installation is an overall efficient process, especially when handled by trained professionals. Upgrading to a heat pump is a step toward sustainable living, reducing energy bills and your carbon footprint. By understanding the process, you can plan for a smoother upgrade to this energy-efficient technology.