Nibe S1257 Intelligent Ground Source Heat Pump, 9–18 kW (Stainless/Copper/Enamel)

DESCRIPTION
Step into the next generation of energy-efficient climate control with the Nibe S1257, an intelligent and variable-speed ground source heat pump. Boasting an impressive seasonal performance factor (SCOP) of up to 5.9, the heat pump adapts dynamically to your property's real-time thermal load. This ensures maximum utility bill savings and premium indoor comfort all year round for both compact and large detached houses.

Eco-Friendly Engineering and Integrated Cylinder Options
At the heart of the Nibe S1257 is the natural and sustainable refrigerant R290 (propane). Completely free of harmful PFAS chemicals, it features an extremely low GWP value and bypasses mandatory annual recurring leak inspections. The unit comes equipped with an internal 180-liter domestic hot water storage cylinder. To perfectly align with local water chemistries and maximize corrosion protection, the cylinder is available with three structural lining options: stainless steel, copper, or vitrified enamel.

Smart Home Integration and AI Automation
As a flagship model in Nibe’s advanced S-series, this unit serves as a core component of your connected home network. Utilizing built-in WiFi and the myUplink app, you can seamlessly adjust your indoor climate directly from a smartphone. System AI algorithms learn your household routines, automatically pairing with Weather Forecast Control and Smart Price Adaption to shift loads away from peak electricity price windows. The clean exterior features a push-to-open aluminum door and a large color touchscreen interface.

Product Benefits:

• Three Corrosion Barriers: Choose between Stainless Steel (R), Copper (CU), or Enamel (E) inner cylinder linings based on water testing.
• Natural Refrigerant (R290): Future-proof configuration with zero PFAS and zero annual mandatory inspection overheads.
• Outstanding Seasonal Efficiency: Inverter technology drives an SCOP up to 5.9 for industry-leading running cost reductions.
• Connected Convenience: Integrated WiFi infrastructure supports myUplink apps, local weather data syncing, and voice integration.
• Flexible Performance Configurations: Available in multiple cascade-ready power outputs to match any structural layout.

Technical Specifications:

• Capacity Outputs in Series: S1257-5 (1.5–5 kW), S1257-8 (1.5–8 kW), S1257-13 (3–13 kW), S1257-18 (4–18 kW)
• Water Cylinder Volume: 180 liters
• Internal Corrosion Barrier Type: Stainless steel (R), Copper (CU), or Vitrified Enamel (E)
• 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: High-resolution color touchscreen and app ecosystem (myUplink)
• Dimensions (W x D x H): 600 x 620 x 1800 mm
• Brand: NIBE

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