Underfloor Heating

Underfloor Heating Integration with Heat Pump

Underfloor heating works best with a heat pump when the system is designed and set up for low-temperature heating. This service integrates or optimises wet underfloor heating so your heat pump can run efficiently, keep rooms at a steady temperature, and avoid common issues like uneven heat, noisy circulation, or frequent heat pump cycling.

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What this service covers

This service focuses on making wet underfloor heating and your heat pump work as one properly balanced system. Depending on whether you are installing new underfloor heating or improving an existing setup, work can include:

  • System design checks, including heat loss, pipe spacing, and zoning
  • Manifold supply and installation, with actuators and isolation as required
  • Underfloor pipe circuit layout and connections to the manifold
  • Pump and blending considerations (where applicable) to suit low flow temperatures
  • Controls integration, including thermostats, wiring centres, and zone control
  • Commissioning, flushing, filling, and inhibitor dosing
  • System balancing and flow rate setting per circuit for even heat
  • Fault-finding and repairs for leaks, blockages, air locks, or poor circulation
  • Performance optimisation to reduce cycling and improve comfort

When this service is right for you

This is most relevant if you are fitting a heat pump and want underfloor heating that can deliver the required heat at lower flow temperatures. It is also a good fit if you already have underfloor heating but rooms warm up unevenly, some loops stay cool, or the heat pump seems to run inefficiently. Landlords and small commercial sites often choose this service to improve comfort while keeping running costs and callouts under control.

How integration and optimisation is delivered

Work usually starts with a review of your current heating layout and how the heat pump is controlled. If underfloor heating is being installed, the pipe circuits and manifold are planned to match the building’s heat demand and zones. If it is an existing system, the focus is on correcting circulation, control settings and hydraulic balance, then commissioning the system so each loop receives the right flow.

After commissioning: keeping performance consistent

Once the system is running, fine adjustments may be recommended to flow rates, thermostat schedules, and heat pump settings to maintain stable temperatures. You will also get clear guidance on how to run underfloor heating with a heat pump, including what to expect from warm-up times and how to avoid over-correcting with the controls.

Frequently Asked Questions

Can my existing underfloor heating be used with a heat pump?
Often yes, but it depends on pipe spacing, insulation, and whether it can meet heat demand at lower flow temperatures. A review of the design and system performance will confirm what changes, if any, are needed.
Do I need a mixing valve or blending set with a heat pump?
Many heat pump and underfloor heating setups can run without blending because both suit low temperatures. If there are mixed emitters or control constraints, blending and pumping arrangements may still be required.
Why is balancing the underfloor heating circuits so important?
Without correct flow rates, some rooms overheat while others stay cool, and the heat pump may cycle more often. Balancing helps deliver even heat and supports efficient, steady operation.
How long does it take to feel the benefit after integration?
Commissioning improvements can be noticed the same day, but underfloor heating responds slowly compared with radiators. After initial setup, fine tuning over a few days can help dial in comfort and efficiency.
What problems can you fix on an underfloor heating system?
Common issues include air locks, poor circulation, stuck actuators, faulty thermostats, leaks on the manifold, and incorrect control wiring. The aim is to restore reliable heat and stable zone control.

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  • Underfloor Heating Pump Replacement
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  • Underfloor Heating Commissioning
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  • Underfloor Heating Actuator Replacement
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