Viessmann: Boiler Catalogue Exclusive

Ideal for homes with multiple bathrooms, these work with a separate hot water cylinder but house most major components (like the pump and expansion vessel) inside the boiler itself. Viessmann Direct 3. Open Vent (Heat Only) Boilers

Before diving into the specific products, it's helpful to know how to explore the official Viessmann documentation. The "catalogue" isn't just one document; it's a collection of resources. viessmann boiler catalogue

Landlords, budget-conscious homeowners, and small properties. The Vitodens 100-W & 111-W Series (The Mid-Range Benchmark) Ideal for homes with multiple bathrooms, these work

Combi boilers are great for single bathrooms; system boilers with cylinders are better for multiple showers running simultaneously. Ideal for homes with multiple bathrooms