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Viessmann Vitodens 100-W Review is a top search term since it was awarded a Which? Best Buy by one of the most prominent independent UK Consumer Research magazines. These condensing gas boilers are among the highest efficiency boilers available not only in the UK, but around the world. They also sit at an attractive price point compared to other boilers available in the UK. That often times gives people the impression that it’s a cheap boiler. But Viessmann Boilers are one of the most technologically advanced boilers available in the world at the moment. You might be simply finding out which is the best combi boiler in the UK, but how do Viessmann manage to keep the price low, and more importantly, is the Vitodens 100-W boiler any good?
Before we get stuck in, let us remind you that you can get a free, no-obligation quote yourself on the Viessman Vitodens 100-W boiler by entering your details and clicking the button below. It’s that simple!
Now, let’s get stuck in!
As Viessmann Approved Installers, Boilerhut have installed thousands of Viessmann Vitodens 100-W review boilers all over the UK. These are fantastic boilers, with many benefits including:
- ErP Heating Seasonal Efficiency of 94% on the 100-W
- A whopping 98% on the Vitodens 200-W – a higher end model
- Designed to be lightweight and compact in dimensions
- Very easy to site and install for the engineer
- Consistently regarded as one of the quietest boiler ranges in their class – Noise levels of only 35dB, so you won’t hear the boiler when you’re trying to catch a warm, quiet night’s sleep.
Let’s delve deeper into the nitty-gritties of the Viessmann Vitodens 100-W Review.
You can get an online quote for a Viessmann Vitodens 100-W review and installation within minutes by going through our free, no obligation quoting system below. Just enter your postcode below and hit the green button:
- Energy efficiency class: A
- ErP Heating Seasonal Efficiency – 94%
- Standard 5 year comprehensive warranty
- Extended 10 years warranty if installed by Boilerhut
- Gas-fired wall mounted unit
- Available in outputs from 4.7 to 35 kW
- Modulation range up to 1:6
- Modulating cylinder burner
- User friendly control via backlit touchscreen
- Constant temperature control and weather compensated operation (an outside temperature sensor is available for weather compensation)
- Designed to be used with multiple boilers on one chimney system, if required
Viessmann Vitodens 100-W review boilers are made in Germany. Now, before we go all patriotic and say we should only buy British boilers, there are no true “British boilers” anymore. Worcester are owned by Bosch. Vaillant is German. Baxi are headquartered in The Netherlands etc. etc. We can go on and on, but the reality is the clothes and shoes you wear are made in India, your electronics in China, and pretty much everything else is outsourced too. Now, as far as high efficiency condensing boiler supremacy goes, Viessmann are the undisputed leaders in Germany, and in most of Europe with close to 70% market share. Germans prefer quality and efficiency over money, whereas in the UK, price and brand reputation are the biggest motivating factors. All that is changing however as Viessmann’s market share in the UK is increasing year-on-year.
Since we’ve mentioned Worcester Bosch, check out our Worcester Bosch vs Viessmann comparison post.
Now, I am sure we all can agree that German engineering is all about efficiency and innovation. Viessmann have years and years of experience in the manufacturing of gas-fired wall mounted condensing boilers, and they have refined them over all those years with innovative technology and services. Plus, they have high standards of product quality and performance, which means even if their earlier models had reliability or parts problems, Viessmann worked hard on rectifying those and building a more robust, reliable and efficient product.
One of the earlier complaints that Viessmann boilers faced was non-availability of parts. Which is something they have also rectified by investing in a goods distribution/logistics centre in Telford, Shrophsire. All Viessmann boilers, kits and parts are also available at all Plumbases across the UK. So, not only are Viessmann Vitodens 100-W boilers one of the most efficient and reliable boilers you can buy in the UK in 2020, in the rare event of any problem with the boiler, a Viessmann engineer can be at your doorstep within 24-48 hours, and parts can be replaced just as quickly.
Viessmann Vitodens 100-W Review – Innovative Technology
Patented Inox-Radial Stainless Steel Heat Exchanger. Phew! That sounds like a mouthful. But this specific internal component, described as an “impressive piece of kit” by our installers and engineers alike, is unique to Viessmann. Unlike a lot of other boiler manufacturers in the UK, who source their aluminium heat exchangers from third parties, Viessmann have this technology patented, and they also manufacture it in-house.
If you’re unsure on the nature of this component, please read our useful post, titled ‘What is a heat exchanger?‘
This is a massive factor in Viessmann’s superiority. In a couple of ways:
- Stainless Steel, especially Inox, is the highest grade of stainless steel available.
- Inox Stainless Steel is more efficient, reliable, durable and corrosion resistant compared to aluminium.
- This helps Viessmann achieve 94% ErP efficiency on 100-W and 98% ErP efficiency on 200-W.
- Almost all major boiler manufacturers in the UK source their aluminium heat exchangers from third parties.
- Manufacturing it in-house gives them the freedom to sell their boilers at an attractive price point.
- Because of the durability of stainless steel, Viessmann can offer 10 years warranty.
CFS (Combined Flue System) and Combined Condensate & PRV
If you are looking at renovating or modernising your property, the Viessmann Vitodens 100-W condensing boiler makes for an ideal replacement for older boiler systems. Using a Viessmann CFS (combined flue system) means multiple boiler flues can be routed to exit from one exit point, whether it’s through the roof or through the wall. Viessmann’s entire boiler range also have combined PRV and condensate connections that can also be routed in to the CFS, and one single drain at the base of the system is all that is required to remove the condensate, without the need of ugly pipes protruding through the external walls.
For more detail on this useful aspect to your heating system, please read our ‘What is a condensate pipe?‘ blog post.
Wireless Roomstats and Weather Compensation
*Currently only compatible with the 200-W. New Viessmann controls coming soon for the 100-W.
Viessmann’s Vitotronic remote control units are ideal for use in living spaces. Not only do they look great with a modern glossy neat design, but with Viessmann’s standardised operating philosophy, they are fairly easy and intuitive to use helping you to manage your heating system at all times. The control unit pictured above is only compatible with the Viessmann 200-W and above models. But with the new building regulations coming to the UK, Viessmann are about to introduce their own range of smart controls for their entire boiler range, including the Viessmann Vitodens 100-W Review and 050-W.
One of the biggest international manufacturers of commercial heating systems, Viessmann have rapidly become the domestic boiler of choice around the world as well. Viessmann, founded in 1917, has over 12,000 employees across the world. They are truly international with presence in 12 countries with 23 production divisions, subsidiaries and representations in 74 countries, and 120 sales offices around the world. Viessmann’s commercial boilers heat some of UK’s biggest establishments, including Cardiff’s Principality Stadium.
Viessmann have also been awarded a multitude of awards over the course of their history. Recent awards include:
- Red Dot Award: Product Design.
- Trophée des Usines.
- iF product design award.
- Number 1 Trade Partner.
- Good Practice Energy Efficiency.
Their foray into the UK market has been comparatively recent, 1989. They are headquartered today at Telford. And their current product range includes gas, oil, steam and biomass boilers, hot water cylinders, combined heat and power generation, photovoltaics, air and ground source heat pumps, refrigeration cabinets, coldrooms and biogas plants.
Viessmann Vitodens 100-W Review – The Verdict
On top of winning “UK Best Buy” awards, or pumping out a whopping seasonal efficiency of 94% and 98% (on 200-W), or dominating the German and European markets, or having our engineers and installers singing its praises, I think our verdict is pretty straightforward. You simply cannot go wrong with choosing a Viessmann boiler in 2020, especially the Vitodens 100-W. What’s more, if you get the boiler installed by a Viessmann Premium Partner and Approved Installer like Boilerhut, you will have your boiler installed to the highest standards. And because we can get you extended 10 year warranties at exclusive online prices, you can enjoy trouble free winters with your family for the next decade at the very minimum. And because their Inox-Radial Stainless Steel Heat Exchanger is built to last, we expect these Viessmann boilers to last decades.
If you want to know which Viessmann Vitodens 100-W boiler is best for your property, you can get an online boiler quote within minutes. Just enter your postcode below and hit the green button:
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