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Viessmann Vitodens 100-W Combi Watermark Certification

Viessmann Vitodens 100-W wall-mounted boilers for NextCycle heating solutions.

Image of the ViCare App and copy explaining that you can control your Viessmann heating products through the app

Image of the Viessmann Vi Guide app for installers and commissioning

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Image of Viessmann Gas Condensing Boiler installed in a kitchen

Viessmann Vitodens 100-W Gas Condensing Boilers – Combi

Leading German Performance for Heating and Domestic Hot Water

Product Type: Gas Condensing Boiler – Combi
Intended Use: Domestic Hot Water, Residential Gas Boiler
Product Application: Domestic Projects

TECHNICAL SPECIFICATIONS:
Output: 3.2kW – 32kW
Hot Water Production: Domestic Hot Water Production
Standard Seasonal Efficiency [to DIN]: 98% (Hs) [gross cv]
Modulation Range: Down to 1:10
European Energy Class: A
Fuel: Natural Gas, LPG, 20% Hydrogen Mixture
European Brand: German-designed since 1917
Control: LCD Touchscreen, WiFi Ready (ViCare & ViGuide apps)

Categories: Domestic, Gas Condensing Boilers, Government, Homeowner, Trade, Viessmann Tags: Boilers, European Energy Class A Heating, Heating, Viessmann

About the Product

Description

Description

The Vitodens 100-W Combi is Viessmann’s most advanced residential wall mounted gas condensing boiler, delivering domestic hot water coupled with a great balance of efficiency, reliability, and value. Manufactured in Germany for Australian conditions, it combines innovative technology with long-lasting performance, all in a sleek, compact design that fits seamlessly into modern homes.

Market-Leading Gas Condensing Technology for Australian Homes
Thanks to its advanced assemblies and space-saving wall mount, the Vitodens 100-W Combi is ideal for both new builds and modernisation projects. With all connections accessible from the front, no side clearances are required, making installation easy, even in tight spaces.

Future-Ready Heating with Hydrogen
Engineered to operate with natural gas and hydrogen blends, this product can already run on up to 20% hydrogen. This makes it a smart, future-proof choice for homeowners looking to embrace climate-neutral heating technology.

Efficient and Quiet Performance
At the heart of the Vitodens 100-W Combi is the MatriX-Plus burner, delivering efficient, quiet, and low-emission performance. Its stainless-steel MatriX surface resists high temperatures, ensuring reliability and long service life. The Lambda Pro fully automatic combustion controller adjusts to all gas types, guaranteeing consistently clean and efficient combustion.

Smart, Simple, and Intuitive Controls
The LCD screen with 7-segment display of the new Viessmann One Base platform features a discreet “black panel” visual design and is renowned for its simple, easy to understand operation. It can be used for convenient control of heating systems with a direct heating circuit and/or a heating circuit with a mixer.

Pair your Vitodens 100-W Combi with the ViCare app to enable Home Energy Management System (HEMS) functionality. Monitor performance, optimise efficiency, and save on energy bills, all from your smartphone.

Warranty & Care Program
As part of Next Cycle’s industry-leading warranty, you can install the Vitodens 100-W Wall Mounted Gas Condensing Boiler (System and Combi Boiler) with confidence, knowing you are backed by our commitment to quality, and long-term support. This product is covered by:

10-Year Warranty on the Radial Heat Exchanger
5-Year Warranty on the Components*
2-Year Warranty on Labour

For more information, go to our Warranty & Care Program page.

* Boiler Components Warranty has 2 years component warranty and can be extended to 5 years when connected to the internet and serviced annually by an approved Viessmann Australia technician.

Watermark Certified
The Vitodens 100-W Combi delivers performance that you can trust, and that is tested, evaluated and certified to Watermark approved specifications.

Want More Information on this Product?
Please contact us or download the Product Flyer below for more details.

Technical Features

Heating: Radiant or Underfloor

Delivers high levels of comfort and energy efficiency.

Domestic Hot Water

Produces domestic/sanitary hot water.

Market-Leading Efficiency

Benefit from lower power bills with up to 98% maximum efficiency.

Integrated WiFi Interface

Use the ViCare app to save energy costs and benefit from remote monitoring of your heating system by a local heating engineer.

Natural Gas and LPG Compatible

Operates with either LPG or natural gas.

Internal and External* Compatible (*With External Casing)

Flexible installation options.

10-Year Warranty^

Peace of mind is guaranteed with our 10-Year Radial Heat Exchanger Warranty, 5-Year Warranty on Components and 2-Year Warranty on Labour. ^Terms and conditions apply. Contact us for more details.

German Designed & Engineered

Industry-leading, German-designed technology.

Simple and Intuitive Controls

Detailed LCD touchscreen display provides convenient control over both direct and mixed heating circuits.

Attractive Price and High Performance

European performance at a competitive price.

Efficient and Quiet

MatriX Plus burner delivers eﬃciency and low pollutant and noise emissions.

Durable and Reliable

Innox-Radial heat exchanger is corrosion-resistant and highly eﬃcient, converting energy into heat with exceptional durability and quality.

Future Ready

Certified for 20% hydrogen content in natural gas.

Consistently Clean Combustion

Lambda Pro combustion control system ensures consistently clean and eﬃcient combustion.

Easy Installation

Designed for easy installation in small spaces.

Watermark Certified

Delivers performance that you can trust, and that is tested, evaluated, and certified to Watermark approved specifications.

Product Flyer

VICARE HOME CONTROL APP

VIGUIDE INSTALLER APP

Customer Reviews

      All reviews
 5.0 
   Google
 5.0 
   Trustindex
 5.0 
 
  
 
 
 
  Excellent5.08 reviews
 5.0
 Excellent8 reviews
  Write a review     Google    Trustindex  
 
 
 
    
 Excellent5.04 reviews
 5.0
 Excellent4 reviews
  Write a review 
 
    
 Excellent5.04 reviews
 5.0
 Excellent4 reviews
  Write a review 
 
 
 
    
 
 
      Posted on Google  
   Adriana Aleksic 
 June 24, 2026
 
 
 Trustindex verifies that the original source of the review is Google. Next Cycle helped me find an installer for the Viessmann heat pump. Professional installation, excellent support, and a quality product. The system performs exactly as promised and is helping reduce our energy costs.
  
 
     Posted on Trustindex  
   Todd Noble 
 June 10, 2026
 
 
 Trustindex verifies that the original source of the review is Trustindex. +1
Viessmann Vitocal 161-A
Really happy I went with Next Cycle for my Viessmann Vitocal 161-A. I'm an installer and I run one of these at home as well, so I had a fair idea what I was after, and the whole process with them was smooth from the first enquiry through to delivery. Communication was good, they answered my questions properly, and the after-sales support has actually been there when I've needed it. The Vitocal 161-A itself has been excellent, quiet, efficient and plenty of hot water, and it's been running with no issues for 6 months. Every customer I've put one in for has been happy too. If you're shopping for a Viessmann R290 hot water heat pump and want a supplier who looks after you, Next Cycle is worth a call.
  
 
     Posted on Google  
   Todd Noble 
 June 10, 2026
 
 
 Trustindex verifies that the original source of the review is Google. +1
As an installer I get my Viessmann Vitocal 161-A units through Next Cycle and they've been great to deal with. Stock's been available when I've needed it, the team actually know the product and the rebate side (federal STCs plus the state schemes), and they were upfront about the warranty. The 7-year tank and 5-year parts and labour cover gives my customers real peace of mind. Pricing on the R290 DHW heat pump is competitive and ordering is easy. I've put in [a few] of these hot water heat pumps now, including one at my own home, and every client has been stoked with the result. If you want a Viessmann hot water heat pump and a supplier who backs it up with proper support, give Next Cycle a call.
  
 
     Posted on Google  
   Phil Mather 
 May 22, 2026
 
 
 Trustindex verifies that the original source of the review is Google. +2
We recently upgraded our old hot water system and hydronic heating boiler to a Viessmann Vitodens 100 through Next Cycle. Our old system was not reliable and since installing the Viessmann system we couldn’t be happier.

Luke and the Viessmann installer were fantastic throughout the entire process — knowledgeable, professional, and really took the time to ensure we were choosing the right boiler for our home. The whole process was smooth and stress-free. Luke went above and beyond after installation, helping us set up the ViCare app and showing us how to use the heating timers and features properly. It’s been about three months since the boiler was installed, and we’re already seeing the difference with noticeably lower gas bills and better overall efficiency. Highly recommend Next Cycle Melbourne, Viessmann, and big thanks for the great service and support!
  
 
     Posted on Trustindex  
   Alex Trussler 
 April 19, 2026
 
 
 Trustindex verifies that the original source of the review is Trustindex. +0
18 Kw I290
Choose Next Cycle for High-Performance Hydronic Heat Pumps and Expert Support 

As a leading hydronic specialist in New South Wales, Victoria and Queensland, we have worked with a wide range of systems, and Next Cycle consistently delivers high-quality hydronic heat pump solutions. Their R290 and R32 range combines European engineering with reliable, high-performance across residential and commercial applications.

The Maxa R290 hydronic heat pumps are extremely energy-efficient, helping reduce running costs while delivering excellent levels of comfort. Importantly, the Maxa heat pumps are fully certified and backed by comprehensive warranty and care programs, giving confidence in their safety and compliance. From pre-installation to operation, Next Cycle provides strong technical support, making them a standout choice for anyone seeking a premium hydronic heat pump solution. They always go the extra mile to ensure our customers are happy.
  
 
     Posted on Trustindex  
   Keogh Plumbing 
 December 11, 2025
 
 
 Trustindex verifies that the original source of the review is Trustindex. +4
Best DHW Heat Pumps, Service and Warranties
Next Cycle has a great range of domestic hot water heat pumps and hydronic heat pumps, and their service, warranties and support are the best I have experienced as a plumber. Highly recommended!
  
 
     Posted on Google  
   Nayeli Brancaccio 
 December 11, 2025
 
 
 Trustindex verifies that the original source of the review is Google. The Viessmann domestic hot water heat pump that the team at Next Cycle recommended is perfect for me and my family and their service was fantastic. Highly recommend them.
  
 
     Posted on Trustindex  
   Dani 
 December 10, 2025
 
 
 Trustindex verifies that the original source of the review is Trustindex. Highly recommend Next Cycle
Fantastic experience with the Next Cycle team. We needed a sustainable hot water solution to replace our old electric unit. They were super knowledgeable, efficient, and friendly. The new system is brilliant—heats up fast and uses barely any power. Big thanks to Jack for explaining everything

Viessmann Vitodens 100-W Gas Condensing Boilers – Combi

Leading German Performance for Heating and Domestic Hot Water

About the Product

Description

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