GW BETACOM4 30C NG ERP COMB BLR 21205

The Glow-worm Betacom4 30C is an ErP A-rated, high-efficiency condensing combination boiler designed for natural gas. It delivers central heating and instantaneous domestic hot water from a single compact, wall-mounted unit—no separate cylinder required. Manufactured by Vaillant Group UK, the Betacom4 30C is a dependable option for small to medium-sized homes, combining efficient performance with straightforward setup and day-to-day use.

With a 30 kW domestic hot water output, it comfortably supports typical household hot water needs, while its modulating operation helps reduce fuel consumption. The boiler offers flexible siting with standard horizontal and vertical flue options and works with a wide range of heating controls for convenient temperature management.

• Brand: Glow-worm (Vaillant Group UK)
• Model: Betacom4 30C
• Fuel: Natural Gas (NG)
• Type: ErP A-rated condensing combi boiler
• DHW output: 30 kW
• Heating and hot water in one appliance; no cylinder required
• Compact, wall-mounted design
• Simple user interface with clear controls
• Modulating, high-efficiency operation to optimise energy use
• Built-in protections for dependable performance
• Compatible with horizontal and vertical flue options
• Suitable for small to medium homes (typically one bathroom)