NIBE S1257 is an intelligent ground source heat pump with integrated water heater, designed to deliver reliable comfort with low energy use all year round.
At the heart of S1257 is smart technology designed to work seamlessly with your connected home. Through intelligent control, the system continuously optimises operation based on heating demand, outdoor conditions and electricity prices – always balancing comfort and efficiency automatically, without you having to think about it.
With a seasonal performance factor (SCOP) of up to 5.9, S1257 provides efficient heating and hot water while keeping energy use and operating costs to a minimum. It uses the natural refrigerant R290, offering a low global warming potential, no PFAS and no requirement for annual inspections
Integrated water heater
Integrated water heater for compact installation.
Intelligence that gets to know your home
NIBE Sense learns how your home works and automatically optimises heating and hot water.
WiFi/myUplink
Using the Internet and the myUplink app, you get a quick status overview of the heat pump and the heating in your home. This flexible solution enables you to easily monitor and control heating and hot water production. In the event of a malfunction in the system, you will promptly receive a push notification and e-mail notifying you of this. With myUplink, you can use the smart services Weather Forecast Control for more even heating and operation, and Smart Price Adaption*, in order to further reduce energy costs. You can automatically receive ongoing software updates for optimal operation and the latest features. The WiFi connection also enables you to connect the heat pump to your already smart home. *Requires variable hourly rate contract
Natural refrigerant
The refrigerant moves energy in the form of liquid or gas in the heat pump. This heat pump works with a natural refrigerant that has a very low GWP (Global Warming Potential) value, for a sustainable climate and nature footprint.
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.
Wall console BAU 40 for wall mounting.
The SRV 10 is a wireless radiator thermostat designed to give finer room level control within NIBE S-Series heating systems. Installation is straightforward: the unit is fitted onto an M30x1.5 radiator valve using the supplied adapter if required, then automatically enters its mounting and calibration phases. Local comfort can be adjusted directly at the radiator using the plus and minus keys, with the LCD screen providing clear feedback on operating mode, set temperature and battery status.
Enhances the signal, improving communication between your smart home products when they are placed at a distance from each other. For NIBE S- Series heating installations, the repeater functions as a switch, giving you the opportunity to control it remotely, schedule On and Off times and measure energy consumption.
Plug in the repeater and connect it to your NIBE S-Series heating installation.
The TOC 40 top cabinets provide a practical and visually clean way to conceal ventilation ducting and services above NIBE indoor units. Designed to match the width and depth of a wide range of products, they create a seamless, built-in appearance while maintaining the required 3 mm clearance from the main front panel for correct operation. Installers can select from fixed-height versions of 245 mm or 345 mm for standard ducting runs, or choose the 385–635 mm adjustable model when additional height is needed.
The NIBE FLM S45 is an exhaust air module with built-in fan, specially designed for combining recycling of mechanical exhaust air with a NIBE ground source heat pump, providing an integrated solution for ventilation, hot water and heating.
The NIBE FLM S45 has a high fan capacity and low noise level. Energy is recovered from the ventilation air; even when the heat pump is not in operation, energy is stored in the ground or soil collector and exhaust air energy is thus put to maximum use.
The NIBE S Series is a natural part of your connected home. Smart technology adjusts the indoor climate automatically while you’re in complete control from your phone or tablet. Giving maximum comfort and minimum energy consumption, while doing naturea favour at the same time.
The NIBE RMU S40 is a room unit with 2,8” touch display with built in temperature and humidity sensors. It is used to control and monitor your NIBE S series heat pump/indoor module from another room in the house than the room where the heat pump is placed.
The NIBE S Series is a natural part of your connected home. Smart technology adjusts the indoor climate automatically while you’re in complete control from your phone or tablet. Giving maximum comfort and minimum energy consumption, while doing nature a favour at the same time.
Auxiliary relay HR 10 is a connection box housing a contactor and a rotary selector switch. It is used to control external 1 to 3-phase loads such as oil burners, immersion heaters and pumps.
The NIBE PCM ground source accessory makes it possible to obtain passive cooling from rock, groundwater or surface soil collectors. Combine with your S Series heat pump for a flexible system. Even while your system is continually heating hot water it will cool your home. NIBE PCM is controlled via the heat pump’s touch control, where both settings and monitoring are handled with an easy swipe. The NIBE S Series is a natural part of your connected home. Smart technology adjusts the indoor climate automatically while you’re in complete control from your phone or tablet. Giving maximum comfort and minimum energy consumption, while doing nature a favour at the same time.
Filling connection for filling up the brine. Including insulation. For heat pumps max. 13 kW.
Communication module that translates Modbus RTU, from a solar inverter, to Modbus TCP/IP, for the heat pump to control the solar inverter
4-Pipe Passive/Active Cooling Accessory
The wireless room thermostat allows you to read and control the temperature of a room or a climate zone from the display of the room thermostat or via the myUplink app in your smartphone. For instance by increasing the hot water production when you have many guests or lower the ventilation for better savings when you are not home. Because it is powered by a rechargeable battery, it is easy to install.
Mount the thermostat in your room and connect it to your NIBE S-Series heat pump.
The NIBE POOL 40 accessory provides a complete, ready-engineered solution for integrating pool heating into a NIBE ground source heat pump system. Using its dedicated AXC module, motorised 3-way valve and paired pool sensors, the unit automatically diverts heating medium flow through a pool heat exchanger whenever pool heating is enabled. The accessory controls both the pool circulation pump and any required external heating medium pump, ensuring correct flow and accurate temperature readings throughout the charge cycle. Built-in sensor validation ensures pool heating only activates under safe conditions, providing dependable operation and seamless interaction with the wider heat pump system.
Passive cooling. PCS 44 is used when heat pump is installed in an installation with passive cooling.
This wireless sensor allows you to read the CO2, temperature and humidity level in a room or climate zone using the myUplink app. For NIBE S-series heating installations with ventilation the indoor comfort level can automatically be adjusted to give you a comfortable indoor climate. For example, you can increase ventilation and lower the CO2 level when there are a lot of people present or lower the ventilation to further reduce your energy costs. Because it is battery powered, it is easy to install, but it can also operate with an external power source using a micro USB.
Mount the sensor in your room and connect it to your NIBE S-Series heat and ventilation installation.
HTS 40 is an accessory that records humidity and temperature.
ECS 40 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.
The TOC 40 top cabinets provide a practical and visually clean way to conceal ventilation ducting and services above NIBE indoor units. Designed to match the width and depth of a wide range of products, they create a seamless, built-in appearance while maintaining the required 3 mm clearance from the main front panel for correct operation. Installers can select from fixed-height versions of 245 mm or 345 mm for standard ducting runs, or choose the 385–635 mm adjustable model when additional height is needed.
The TOC 40 top cabinets provide a practical and visually clean way to conceal ventilation ducting and services above NIBE indoor units. Designed to match the width and depth of a wide range of products, they create a seamless, built-in appearance while maintaining the required 3 mm clearance from the main front panel for correct operation. Installers can select from fixed-height versions of 245 mm or 345 mm for standard ducting runs, or choose the 385–635 mm adjustable model when additional height is needed.
Extension frame.
The NIBE ECS 41 kit allows installers to add one or more additional heating circuits to a NIBE heat pump installation where different supply temperatures are required, such as radiator and underfloor heating combinations. Each kit includes a dedicated AXC accessory module, shunt valve, shunt motor, circulation pump and temperature sensor, enabling the new zone to run as a fully controlled climate system with independent flow temperature, heating curve and pump operation. The ECS 41 is sized for larger UFH areas above 80 m².
Three phase back-up electric immersion heater - 15kW
Back-up electric immersion heater - 26kW
Back-up electric immersion heater - 42kW
Accessory card. AXC 40 is used to enable connection and control of Mixing valve controlled additional heat, Pump for hot water circulation, Groundwater pump
NIBE PV is an integrated solution which is based on a fully modular system with several basic sizes: 4 / 8 / 12 / 16 / 20 kW. Each basic package has nominal power of 4 kW and consists of 10 panels, mounting parts and an inverter with communication module, all of which are ready for installation. The solar package can easily be expanded with additional solar panels for optimum use of roof space.
NIBE PV comprises of monocrystalline silicon cell panels which use PERC technology, with an output of 400 Wp. The solar panels are elegant, all-black panels. NIBE PV harnesses sunlight all year round and converts it into electricity. NIBE PV can be connected to your NIBE heat pump* for maximum energy efficiency.
Thanks to smart technology, the product gives you control over your energy consumption and will be a key part of your connected home. The efficient control system automatically adjusts the indoor climate for maximum comfort, and you do nature a favour at the same time. * applies to systems which can be connected to NIBE Uplink and myUplink.
Height (mm)
1800
Width (mm)
600
Depth (mm)
620
Product efficiency class room heating, 35 °C
A+++
Product efficiency class room heating, 55 °C
A+++
System efficiency class room heating, 55 °C
A+++
System efficiency class room heating, 35 °C
A+++
Refrigerant amount, CO2 equivalent (ton)
0,0003