Purpose-built controller for geothermal and heat pump systems
About this product
The Nexus Geo is a purpose-built controller designed specifically for geothermal heat pump systems, with native Stiebel Eltron CAN-bus integration. It brings the full power of the Nexus iQ™ cloud platform to ground-source and water-source heat pump installations.
Monitor compressor performance, flow temperatures, coefficient of performance (COP), and energy consumption in real time. The Nexus Geo translates the proprietary CAN-bus protocol into clean, structured data — giving building managers and HVAC contractors full visibility into system health without specialist diagnostic tools.
Whether you’re managing a single geothermal installation or a multi-site portfolio of heat pump systems, the Nexus Geo delivers the same cloud-connected intelligence as the rest of the Nexus ecosystem.
Key Features
Stiebel Eltron CAN-bus — Native integration with Stiebel Eltron heat pump communication protocol
COP monitoring — Real-time coefficient of performance tracking for efficiency analysis
Flow temperature tracking — Monitor supply and return temperatures across the loop
Cloud connected — Full Nexus iQ platform access with real-time dashboards and alerts
Energy analytics — Track power consumption and compare against heat output
Health scores — Component-level health ratings based on operating data
Smart scheduling — Time-based automation with holiday calendar support
