Heat Pumps & Low-Carbon Heating

Hybrid Heat Pump System Installation

A hybrid heat pump system combines an air source heat pump with a boiler, using smart controls to choose the most efficient heat source for the conditions. This installation service is designed to give you lower-carbon heating without sacrificing comfort, making it a practical option where a full heat pump changeover is not yet suitable. Expect clear system design, careful integration, and thorough commissioning so the system runs as intended.

More information

What hybrid heat pump installation includes

A hybrid system is only as good as its design and setup. Installation typically covers:

  • A property assessment to confirm suitability (heat loss, insulation, existing heating layout)
  • System design: heat pump size, boiler role, hot water arrangement and control strategy
  • Checks on radiators or underfloor heating to support lower flow temperatures where possible
  • Installation of the heat pump unit, pipework, valves, safety components and insulation
  • Integration with the boiler, heating circuit and domestic hot water cylinder (if required)
  • Controls setup (hybrid manager, thermostats, zoning or weather compensation where appropriate)
  • Electrical and condensate considerations for safe, reliable operation
  • Filling, flushing (where needed), inhibitor dosing and system balancing
  • Full commissioning, testing and handover so you understand how to run it efficiently

When a hybrid system is the right choice

Hybrid heating suits properties that need strong heat output in cold weather, but still want lower-carbon heating for much of the year. It can work well if you:

  • Want to reduce gas use without committing to an all-electric system immediately
  • Have mixed heating demands (for example, extensions, loft conversions, or varying occupancy)
  • Need a solution that maintains performance during colder snaps
  • Are upgrading an ageing boiler and want a future-friendly setup

How the installation is delivered

Work usually starts with a survey and design, followed by a planned installation and commissioning visit. You will be advised on likely upgrades that affect performance, such as radiator sizing, cylinder capacity, controls, or minor pipework changes. Once installed, the system is tested across heating and hot water modes, with settings adjusted to match how you use the property.

After installation: optimisation and ongoing value

Hybrid systems often benefit from fine-tuning after you have lived with them for a short period. Follow-up support can include adjusting control parameters, heating curves, zoning schedules, and boiler switch-over points to improve comfort and running efficiency. Regular servicing of both the heat pump components and the boiler helps maintain reliability and performance over time.

Frequently Asked Questions

What is a hybrid heat pump system?
It combines an air source heat pump with a boiler, managed by controls that switch or blend the two. The aim is efficient low-temperature heating most of the time, with boiler support when extra heat is needed.
Can a hybrid heat pump work with my existing radiators?
Often yes, but performance depends on radiator size, pipework condition and the temperatures your home needs. A survey will confirm whether upgrades or balancing are needed to keep rooms warm at efficient settings.
Do I have to keep my current boiler?
Not necessarily. Some installations integrate with a suitable existing boiler, while others replace it to improve reliability and compatibility. The best option depends on the boiler’s age, condition and control capabilities.
How disruptive is the installation?
Most disruption comes from fitting the outdoor unit, running connecting pipework, and updating controls or the hot water cylinder if required. You will usually have short planned interruptions to heating and hot water during changeover and commissioning.
How do I run a hybrid system efficiently?
The heat pump generally works best with steady, lower-temperature heating rather than frequent on and off use. Correct control settings, balanced radiators and sensible schedules help the system favour the heat pump and reduce boiler run time.

Related Services

Complete your experience with these services

  • Low-Temperature Heating System Conversion
    View
  • Heat Pump System Upgrade
    View
  • Heat Pump System Commissioning
    View
  • Heat Pump Performance Optimisation
    View
Show more services
  • Heat Pump Integration with Underfloor Heating
    View
  • Heat Pump Fault Diagnosis
    View
  • Heat Pump Annual Maintenance
    View
  • Air Source Heat Pump Service
    View
  • Air Source Heat Pump Replacement
    View
  • Air Source Heat Pump Repair
    View
  • Air Source Heat Pump Installation
    View