Nibe S1157 Intelligent Ground Source Heat Pump Without Internal Cylinder, 9–18 kW

DESCRIPTION
Take comprehensive control of your building's heating with the Nibe S1157, an intelligent and variable-speed ground source heat pump designed without an internal hot water cylinder. This configuration is the ideal choice for utility room installations where ceiling height is restricted, or for properties with very high domestic hot water demands that require pairing the heat pump with a large, external thermal storage tank or separate cylinder.

High Performance and Sustainable Engineering
Driven by an advanced inverter-controlled compressor, the Nibe S1157 achieves an outstanding seasonal performance factor (SCOP) of up to 5.9. The heat pump adapts its thermal output continuously and completely automatically to match the real-time load profile of the property, minimizing utility costs in both compact and large villas. The internal circuit is charged with the natural, sustainable refrigerant R290 (propane), which is completely PFAS-free and exempt from mandatory annual recurring leak inspections.

AI Automation and Seamless Smart Home Integration
As a flagship model in Nibe's advanced S-series, the heat pump includes integrated WiFi connectivity as standard infrastructure. Utilizing the myUplink app, you can seamlessly monitor and adjust your indoor climate directly from a smartphone. The internal AI algorithms process local weather forecasts and cross-reference shifting electricity tariffs hour by hour (Smart Price Adaption) to automatically schedule heavier operational loads during lower price windows. The clean casing features a high-resolution color touchscreen user interface on the front panel.

Product Benefits:

• Flexible System Layout: Designed without an internal water cylinder – ideal for low ceilings or integration with large external buffer vessels.
• Inverter-Driven Compressor: Variable-speed dynamics drive an SCOP of up to 5.9 for industry-leading running cost reductions.
• Natural Refrigerant (R290): Future-proof layout with zero PFAS chemicals and zero annual certified inspection overheads.
• AI Smart Grid Shifting: Smart Price Adaption automatically shifts heating schedules to track the lowest spot market electricity hours.
• Connected Infrastructure: Built-in WiFi supports myUplink apps, wireless smart home links, and automatic over-the-air firmware updates.

Technical Specifications:

• Capacity Output Range: 9–18 kW (Inverter-regulated performance)
• Water Cylinder: No (intended for external cylinder docking layouts)
• Refrigerant: R290 (Propane, PFAS-free formulation)
• SCOP Rating: Up to 5.9
• Energy Class (Space Heating 35°C / 55°C): A+++ / A+++
• Network Connectivity: Wireless (WiFi with integrated internal antenna)
• User Interface: Color touchscreen display and app ecosystem (myUplink)
• Dimensions (W x D x H): 600 x 620 x 1500 mm
• Brand: NIBE

Please note that the manufacturer’s full warranty is not applicable for units bought in Sweden and installed outside Sweden.