The Nasgas NWH-100 HYB is a high-capacity hybrid storage water heater combining the benefits of gas and electric heating in one unit. With a 100-litre tank (approx.), it’s ideal for larger households or heavy usage. The “HYB” designation refers to hybrid operation — the unit can run in gas mode, electric mode, or auto/hybrid mode that switches between them depending on usage or availability.

This model features auto ignition, digital temperature control, and auto switching logic to determine which heating mode to use. The tank is built of dip-galvanized heavy gauge steel, insulated with Prime Kimmco insulation (density ~12 kg/m³) to minimize heat loss. Safety is emphasized via a QC-approved brass safety valve and overheat protection. Transmission piping uses IIL GI galvanised pipes. 

In operation, the NWH-100 HYB gives flexibility: during times when gas is available, it uses gas heating; or it can fall back to electric heating. The auto mode helps maintain hot water availability with efficiency.  The digital display and precise control enhance user convenience, while the robust build and safety features provide durability and reliability.

Though being a large geyser, it incorporates multiple safety mechanisms to protect against overpressure or overheating, making it apt for domestic installations where both fuel types may be in use or preferred depending on cost or availability.