Viessmann Boiler Catalogue -

: Allows up to nine boilers to work together, reaching capacities up to 900 kW for industrial use.

High efficiency, compact design suitable for smaller homes, heating water directly.

: A floor-standing compact unit that combines space heating with an integrated 26.5 USG DHW tank. Vitodens 050-W

Up to 1:10, meaning a 32 kW boiler can modulate down to 3.2 kW when heating demands are low, dramatically slashing cycling losses.

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For those looking to move away from fossil fuels, the Viessmann catalogue includes the Vitoligno series. These boilers use wood pellets or logs to provide carbon-neutral heating.

The boiler features an intuitive color display capable of showing energy cockpits, fuel usage statistics, and solar thermal yields (if connected).

This article explores the 2026 Viessmann product lineup, covering the Vitodens combi, system, and heat-only boilers, along with their key advantages in efficiency and sustainability. 1. Overview of the Viessmann Product Portfolio : Allows up to nine boilers to work

Entry-to-mid-level models offering excellent value, compact sizes, and high efficiency.

The is a low-temperature steel boiler that serves the commercial and large residential market, with a massive output range from 440 to 1950 kW . It is a three-pass boiler designed for clean combustion with low nitrogen oxide emissions. It's ideal for new build or modernisation projects in large buildings and district heating networks.

Many modern catalogues focus on "Hybrid" setups, where a Vitodens gas boiler works in tandem with an air-source heat pump.

: Released as a budget-friendly option, this ultra-compact wall-mounted unit delivers excellent essential performance without premium pricing. Vitodens 050-W Up to 1:10, meaning a 32

1:8 modulation ratio, basic LED touchscreen interface, integrated Wi-Fi.

A defining feature of the catalogue’s flagship products is the Inox-Crossal heat exchanger. Made from high-alloy stainless steel, this component is a testament to Viessmann’s engineering philosophy: durability leads to longevity. Unlike standard materials that may corrode over time, the Inox-Crossal design ensures that the condensing process—which is inherently corrosive—does not compromise the boiler's lifespan. This focus on material science distinguishes Viessmann from competitors who may prioritize lower initial costs over long-term material resilience.

: A premium wall-mounted unit with a 7-inch color touch display and automatic combustion control for maximum efficiency.

This report outlines the 2024/2025 product lineup for Viessmann, focusing on their residential and commercial boiler solutions. Viessmann products are known for high-efficiency condensing technology, stainless steel heat exchangers, and integrated smart connectivity .