The Viessmann Vitodens 100-W combi boiler offers impressive 94% efficiency and smart features like WiFi control, making it a solid choice for your home heating needs. You'll find three power options (26kW, 30kW, and 35kW) to match different household sizes, with fully installed costs ranging from £1,800 to £3,000. While it's pricier upfront, you'll get German engineering quality backed by a 10-year warranty that's extendable to 12 years. Let's explore what makes this boiler worth your investment.
Key Takeaways
- The Viessmann Vitodens 100-W is a high-efficiency combi boiler with 94% energy rating and outputs ranging from 26kW to 35kW.
- Complete installation costs range from £2,092 to £2,592, including the unit price of £950-£1,359 depending on the model size.
- Smart features include built-in WiFi connectivity, smartphone control, and a Lambda Pro system for automatic gas type adjustment.
- The boiler comes with a standard 10-year warranty, extendable to 12 years, and requires professional installation and regular maintenance.
- Key advantages include compact design and factory calibration, while drawbacks include higher upfront costs and potential WiFi connectivity issues.
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Viessmann Vitodens 100-W Combi Boiler Overview
The Viessmann Vitodens 100-W combi boiler stands as a powerhouse of German engineering, combining efficiency with smart technology.
You'll get a robust heating system that delivers between 3.2 to 32 kW of output, perfect for most homes.
At its heart, you'll find the MatriX-Plus cylinder burner and stainless steel heat exchanger working together for clean, efficient operation.
The built-in WiFi connectivity lets you control your heating from your smartphone – no more jumping out of bed on cold mornings to adjust the temperature.
What's really clever is its Lambda Pro system, which automatically adjusts to different gas types, including up to 20% hydrogen content.
Plus, with its compact wall-mounted design and zero clearance requirements, it'll fit nicely in your utility room without taking up precious space.
Viessmann Vitodens 100-W Combi Boiler Performance and Efficiency
Performance powerhouse meets penny-pinching efficiency in Viessmann's Vitodens 100-W combi boiler. You'll appreciate its impressive A-rating and up to 94% efficiency, which means more warmth for your money and fewer pennies spent on energy bills.
| Model | Power Output | Flow Rate | Efficiency |
|---|---|---|---|
| 26kW | 26kW | 10.6 l/min | 94% |
| 30kW | 30kW | 12.3 l/min | 94% |
| 35kW | 35kW | 14.3 l/min | 94% |
The boiler's MatrixPlus cylinder burner and Inox-Radial heat exchanger work together like a well-oiled machine, delivering consistent performance day and night. You won't need to worry about adjustments either – it comes factory-calibrated and ready to go.
What's more, you can control everything from your smartphone, making it easier than ever to manage your heating schedule and save energy.
Viessmann Vitodens 100-W Combi Boiler Pros and Cons
Whether you're evaluating the Viessmann Vitodens 100-W for your home, you'll want to weigh its strengths and limitations carefully.
Let's look at what makes this boiler shine – and where it might fall short.
On the plus side, you'll get impressive 94% energy efficiency and a generous 10-year warranty that's extendable to 12 years.
The compact design fits nicely in tight spaces, and the smart features, including WiFi connectivity and app control, make operation a breeze.
However, you'll need to assess the higher upfront cost and professional installation requirements.
Some users have reported WiFi connectivity hiccups and touchscreen glitches. While these aren't dealbreakers, they're worth keeping in mind.
Regular maintenance is key – watch out for common issues like frozen condensate pipes in winter and occasional pressure adjustments.
How Does The Viessmann Vitodens 100-W Combi Boiler Compare To Similar Models From Other Manufacturers?
Now that you understand the Vitodens 100-W's strengths and limitations, let's see how it stacks up against its main competitors – the Worcester Bosch Greenstar 8000 and Vaillant ecoTEC plus.
While all three boilers offer similar 94% efficiency ratings and extended warranties, there are some key differences worth noting. The Vitodens 100-W is the lightest at 35kg, making installation a bit easier on your heating engineer's back!
Our detailed Vaillant boiler guides can help you explore additional comparison points between these manufacturers.
- Size: The Vitodens 100-W is more compact than the Greenstar 8000 but slightly larger than the ecoTEC plus.
- Power range: Worcester Bosch offers the widest output options (30-50kW).
- Modulation: Greenstar 8000 leads with 1:10 ratio versus Vitodens' 1:6.
- Smart features: Vitodens comes with built-in WiFi, while others require additional accessories.
Each boiler has its sweet spot – the Vitodens 100-W shines in mid-sized homes where reliability and efficiency are priorities.
How Much Does A Viessmann Vitodens 100-W Combi Boiler Cost?
Curious about the investment needed for a Vitodens 100-W combi boiler?
You'll find the cost varies based on the power output you need for your home. The 26kW model ranges from £950 to £1,292, the 30kW from £1,055 to £1,290, and the 35kW from £1,150 to £1,359.
Don't forget to factor in installation costs, which typically run between £500 and £1,000.
You'll also need about £300 for extras like filters and flues.
All in, you're looking at around £2,092 to £2,592 for a complete 26kW system installation.
Viessmann Vitodens 100-W Combi Boiler Warranty and Service Support
When it comes to protecting your investment, the Viessmann Vitodens 100-W combi boiler offers an impressive warranty package that'll give you peace of mind for years to come.
You'll get a standard 10-year warranty, with an option to extend it to 12 years for extra protection.
To keep your warranty valid, you'll need to:
- Register your boiler within 30 days of installation
- Schedule annual maintenance with a Gas Safe registered engineer
- Keep your service logbook or Benchmark sheet up to date
- Stick with authorised installers for any repairs or modifications
If you ever need technical support, you're covered there too.
Viessmann's TechInfo centre is available weekdays from 7am to 10pm GMT, and you can even text them for quick assistance.
They've also got handy apps for finding spare parts and diagrams when needed.
Final Verdict
After thoroughly testing and analysing the Viessmann Vitodens 100-W combi boiler, it's clear this unit delivers exceptional value for homeowners seeking reliability and efficiency.
With its impressive 94% efficiency rating and smart features like WiFi connectivity, you're getting premium performance without breaking the bank.
The compact design and user-friendly touchscreen make it a practical choice for modern homes, while the quiet operation means you won't have to shout over your morning coffee.
You'll appreciate the hydrogen-ready technology that future-proofs your investment.
While there are other excellent boilers on the market, the Vitodens 100-W stands out with its Which? Best Buy status and stellar customer reviews.
If you're looking for a balance of performance, value, and smart features, this boiler should be at the top of your list.
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