- Product information
- Advantages
The NIBE S2125 air source heat pump range is designed to keep your home comfortable all year round, whatever the weather. Quiet Mark certified*, the S2125 runs at exceptionally low noise levels, so you’ll barely notice it’s there. Even down to temperatures as low as -25°C, the S2125 will continue to deliver reliable warmth and hot water. Built with efficiency in mind, the range achieves an impressive A+++ energy rating and market leading efficiency, helping to lower running costs and reduce your carbon emissions.
For extra peace of mind, the S2125 is eligible for FlexiServ coverage, NIBE’s comprehensive servicing and support package, ensuring your system is always running at its best.
The S2125 benefits from one of the most advanced heat pump control systems on the market – the NIBE S-Series. The S-Series controller uses AI-driven machine learning to understand your home’s unique characteristics, can integrate with solar PV for smarter energy use and gives you easy control via your phone using myUplink. The result is a truly intelligent, future-ready heating solution.
Additionally, save an extra £7,500 off the cost of your NIBE S2125 with the Boiler Upgrade Scheme Grant.
*Currently only S2125-8 and S2125-12. New models pending review.
Quiet Mark certified
Ensuring minimal disruption to your daily life and outdoor enjoyment
Eligible for the Boiler Upgrade Scheme Grant
Knock £7,500 off the cost of your installation
Effective down to -25°C outdoor temperature
Keep warm on the coldest winter days
- Technical Data
- Documents
NIBE KVR 11-60
NIBE SMO 20
The NIBE SMO 20 controller is engineered as a robust, installer friendly central hub for managing NIBE air source heat pump systems. Its compact, wall-mounted profile ensures easy placement in utility rooms, plant cupboards and retrofit spaces where depth and clearance are limited. Accessing the internals is straightforward: the front cover lifts off with two screws, and the removable display module provides clear access to the baseboard and all terminal blocks. This helps installers complete electrical work, commissioning and servicing without unnecessary dismantling or downtime.
All wiring and sensor connections are arranged into clearly labelled terminals, reducing installation time and ensuring long-term serviceability. Dedicated cable grommets separate high voltage and low voltage routing, supporting compliance with UK wiring standards and minimising interference. The inclusion of an onboard miniature circuit breaker protects internal electronics, while the ON/Standby/Emergency Mode hardware switch gives installers physical control during commissioning or when isolating the heat pump. Supplied accessories, including pipe sensors, outdoor sensor, conductive paste, aluminium tape and insulation, ensure consistently neat, reliable sensor installation.
The front mounted display and tactile interface make day to day adjustments intuitive, but they also serve an important diagnostic purpose. A clear status lamp indicates operational state, while the hidden USB port allows quick firmware updates without opening the chassis. Combined with optional expansion boards, relay outputs and configurable AUX inputs, the SMO 20 provides installers with a flexible, hardware ready platform that integrates cleanly into a wide range of UK heating system designs, from simple single zone retrofits to more complex installations requiring pumps, valves or buffer integration.
NIBE CPD 11-25/65
NIBE KVR 11-30
NIBE KVR 11-10
NIBE CPD 11-25/75
Height (mm)
1080
Width (mm)
1128
Depth (mm)
831
Net weight (kg)
163
Product efficiency class room heating, 35 °C
A+++
Product efficiency class room heating, 55 °C
A+++
System efficiency class room heating, 35 °C
A+++
System efficiency class room heating, 55 °C
A++
Refrigerant volume, CO² equivalent (ton)
0,000016
This product is Quiet Mark certified
NIBE is proud to have received Quiet Mark certification for this heat pump, recognizing its exceptional low-noise performance. Quiet Mark is an internationally recognized certification awarded to products that meet rigorous standards for noise reduction, ensuring quieter and more comfortable living environments.
Boiler Upgrade Scheme
The Boiler Upgrade Scheme makes the switch to renewable heating more affordable. Homeowners in England and Wales can receive a £7,500 grant towards the cost of installing an air source heat pump, lowering upfront costs and making sustainable heating more accessible.
All NIBE Air Source Heat Pumps are eligible for the BUS grant, as long as you make use of our NIBE Pro Installer network.
Peace of mind
All NIBE air source heat pumps are eligible for our FlexiServ servicing plan, giving you complete peace of mind from day one. Regular servicing ensures that your system continues to run reliably, maintains optimum efficiency, and meets the requirements for full warranty protection.
With inspections carried out by qualified NIBE engineers using genuine parts, you can be confident that your heat pump will deliver dependable heating and hot water for years to come.
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