This Viessmann Vitodens Classic 28kW gas combi boiler connects directly to your central heating and domestic hot water systems. Specifically, it provides a highly reliable and efficient method of delivering both space heating and instant hot water from a single, wall-mounted unit. Furthermore, thanks to its smart, compact build, you significantly speed up the installation process by having a pre-configured, ready-to-work solution.
Therefore, this combination boiler works perfectly for medium-sized homes or flats, typically with 2 to 4 bedrooms and up to 12 radiators. Additionally, it easily handles higher daily domestic demands, delivering a continuous hot water flow rate of 12.0 litres per minute at a 35°C temperature rise.
The boiler features a robust German-engineered construction, incorporating a premium Inox-Radial stainless steel heat exchanger and a highly efficient MatriX-Plus modulating burner. Moreover, the compact design allows it to fit seamlessly into standard 300mm deep kitchen cupboards. As a result, this reliable build makes it fully compliant with modern energy standards, offering an ErP A-rating and ensuring long-term, ultra-quiet operation under 50dB.
Key Features & Benefits:
Compact Cupboard Fit: The boiler’s space-saving design measures just 700mm x 400mm x 300mm. Consequently, you achieve highly flexible installation options, easily fitting the unit inside standard kitchen cupboards without sacrificing performance.
High-Efficiency Components: The system includes an advanced Inox-Radial stainless steel heat exchanger and a MatriX-Plus burner with a 1:5 modulation range. For example, when heating demands fluctuate, this precise modulation effectively minimizes gas consumption and reduces wear. Ultimately, this allows you to create a highly energy-efficient system that operates at up to 98% efficiency.
High Hot Water Output: The increased 28kW output allows for rapid domestic water heating at 12.0 litres per minute with a 35°C rise. Importantly, it completely eliminates the need for additional external storage cylinders, providing consistent pressure and instant hot water directly from the mains.
User-Friendly Control: The front panel features an intuitive LCD screen with a white backlight and simple 4-button controls. In particular, this interface provides easy access to system diagnostics and temperature settings, and is weather compensation ready and fully compatible with smart controls like the ViCare app for remote management.
Technical Specifications:
Brand/Model: Viessmann Vitodens Classic BPKB
Product Type: Gas Condensing Combi Boiler
Central Heating (CH) Output: 25 kW
Domestic Hot Water (DHW) Output: 28 kW
DHW Flow Rate: 12.0 L/min @ 35°C rise
Dimensions (H x W x D): 700mm x 400mm x 300mm
Weight: 34 kg
ErP Rating: A Rated (Heating & Hot Water)
Noise Level: Ultra-quiet operation under 50dB
