The navien ncb300 gas condensing combi boiler delivers reliable hot water comfort and powerful heating in a compact design engineered for smaller properties. This entry-level model combines high-quality construction with advanced components to achieve exceptional dhw performance and flexible installation options. Stainless steel heat exchangers ensure optimum durability and sustained efficiency throughout the unit's operational life. The 28kw dhw output model features a 6:1 turndown ratio and lightweight construction, while the integrated lcd control panel provides straightforward system management. Hydrogen-ready technology with 20% blend capability future-proofs the installation, while smartphone compatibility enables remote control of heating and hot water systems. Smart weather forecasting and geofencing features maximise energy efficiency and user convenience across all operational modes. Features & benefits: ideal for smaller properties requiring dependable dhw performance and space-efficient heating solutions. Compatible with navien smart service toolkit for simplified diagnostics and maintenance. Erp a energy efficiency rating achievable with 3 smart plus room thermostats in multizone heating configuration. Smartphone control allows remote adjustment of heating and hot water systems. Smart weather forecasting and geofencing optimise efficiency and convenience. Stainless steel heat exchangers deliver long-term durability and consistent performance. Compact, lightwe...