NIBE S1256

NIBE S1256

Award Winning Ground Source Heat Pump

The Energy Awards - 2024

Physical Technology of the Year - Heating and Cooling

Award Logo
  • Product information
  • Advantages

The NIBE S1256 is an intelligent, inverter-controlled ground source heat pump with a 180L integrated hot water cylinder. The NIBE S1256 has a seasonal performance factor (SCOP) of up to 6.22* and a new climate friendly refrigerant, meaning it is our most energy-efficient ground source heat pump to date. The inverter technology automatically adapts to your home’s heating, resulting in optimised savings and performance.

The heat pump is designed for houses up to approx. 400 m2 and is available in two output sizes: 1.5–8 kW and 3–13 kW. The NIBE S1256 is designed with low noise levels and is suitable for both new builds and when replacing an existing heat source.

The NIBE S1256 is part of the S-Series range. With its sophisticated design you can easily control your heating requirements with its integrated touchscreen and ability to connect to a range of smart home accessories. The NIBE S1256 can also be paired with myUplink, giving you full control over your heating and hot water from your phone or tablet.

*The NIBE S1256-18 has a SCOP value of 6.22 (cold climate 35°C) according to European Standard EN 14825, i.e. the applicable standard for determining the reference annual efficiency SCOP.

HIGH CUSTOMIZATION

Our most energy-efficient ground source heat pump with a seasonal performance factor of up to 6.22.

TOP PERFORMING

A new, more climate friendly refrigerant, high hot water capacity and low noise level.

HIGH COMFORT

User-friendly touchscreen, wireless accessories, and integrated wireless connectivity with energy-saving smart technology for high comfort.

  • Technical Data
  • Documents
NIBE S1256-8
NIBE S1256-13

NIBE RMU S40

Wireless touchscreen controller

NIBE FLM S45

An exhaust air module that recovers heat from indoor ventilation air and transfers it to the brine circuit, boosting the efficiency of the connected ground source heat pump. It also provides mechanical ventilation, improving indoor air quality while helping reduce the size of the ground collector needed.Compatible with S-Series heat pumps.

NIBE PCM S40

Enable passive cooling by circulating cool brine (ground loop fluid) directly to the heating system, such as underfloor. PCM S40 is for S-Series heat pumps up to 8kW. Functionally the same as as the PCM 40, but aesthetically different to match the S-Series

NIBE PCS 44

Provides passive cooling by circulating cold fluid from the ground collector loop through a building’s cooling system.

NIBE ELK 8

NIBE ELK 42

Three phase back-up electric immersion heater - 42kW

NIBE POOL 40

An accessory that allows pool heating using heat pump. Max 18 kW. The heat pump controls the reversing valve, pool circulation pump and any heating circuit circulation pumps via POOL 40.

NIBE SRV 10

NIBE ELK 5

NIBE ELK 26

Three phase back-up electric immersion heater - 26kW

NIBE ELK 15

Three phase back-up electric immersion heater - 15kW

NIBE ACS 45

4-Pipe Passive/Active Cooling Accessory

NIBE AXC 40

The AXC 40 is an accessory card paired with NIBE domestic Ground Source Heat Pumps such as the SXX56 range, used to control and communicate with additional systems, such as extra climate systems, shunt-controlled additional heat, step-controlled additional heat, passive cooling, active cooling, etc.

NIBE CDS 10

Wireless temperature, humidity & CO₂ sensor to be paired with NIBE S-Series controllers

NIBE ROT 10

Wireless room thermostat

NIBE KB 25

Filling and flushing kit used during the installation or maintenance of a ground source heat pump system. Allows filling or topping up of the brine circuit. For heat pumps up to 13kW.

NIBE ECS 41

Extra heating circuit (maximum 80-250 m2 floor heating). ECS 41 is used when heat pump is installed in houses with up to four different climate systems that require different flow line temperatures, for example, in cases where the house has both a radiator system and an under floor heating system.

NIBE EME 20 UK

Communication module that translates Modbus RTU, from a solar inverter, to Modbus TCP/IP, for the heat pump to control the solar inverter

NIBE THS 10

This wireless sensor allows you to read the temperature and humidity in a room or climate zone using the myUplink app. On the heat pump you can see the current room temperature or change it in °C. THS 10 replaces the fixed indoor sensor. Because it is battery powered, it is easy to install. Mount the sensor in your room and connect it to your NIBE S-Series heating installation.

NIBE HR 10

A relay box accessory that acts as an interface between the heat pump and external devices, e.g. immersion heaters, cooling modules, external heat sources. It lets the heat pump turn other equipment on / off depending on the systems needs.

NIBE ECS 40

Allows the heat pump to control a second heating circuit (zone) with a different temperature requirement. For up to 80 m² of underfloor heating

Height (mm)

1800

Width (mm)

600

Depth (mm)

620

Net weight (kg)

231

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+++

Efficiency class water heating

A+

Volume water heater (l)

180

Refrigerant volume, CO² equivalent (ton)

0,54

Declared tap profile

XL

User manual (UHB)
Installer manual (IHB)
Installer manual (IHB)
Energy Labels (ELI) S1256-13
Energy Labels (ELI) S1256-8
Energy Labels (ELI) S1256-13
Energy Labels (ELI) S1256-18
Consumer information leaflet (CIL)
Product Image

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.

Learn more about our Quiet Mark certification

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