Ideal vs Viessmann Boilers, review and comparison

Ideal vs Viessmann Boilers

Ideal vs Viessmann Boilers over the years, have built up a reputation of affordable and reliable boilers in the UK market.  Ideal Boilers have long been one of the most installed boilers in the UK.  I remember when I first moved to a new semi-detached house, it had an Ideal standard boiler installed in the kitchen.  It wasn’t brand new, but it worked great for the two years I was there with occasional hiccups like loss of water pressure or water hammer issues.  So, if you’re in the market for a new boiler, Ideal vs Viessmann Boilers is a good comparison to look for.  Much like many other comparisons on our website, we have tried to remain completely unbiased, giving you facts and figures, without any sales pitches, so you as the customer can make your mind up with the right information.

If you are in the market for a new boiler, whether Ideal vs Viessmann boilersyou can get an online boiler quote within minutes by entering your postcode in the box below and hitting the green button:

About Ideal Boilers

ideal vs viessmann boilers

Ideal Boilers was founded in 1906, which means they have been operational for more than a 100 years.  They are present in domestic and commercial heating markets.

Today, Ideal Boilers have a decent market share in the UK, and they continue to be the boiler of choice in independent Ideal Boiler Reviews for people who want an affordable and reliable boiler.

About Viessmann Boilers

ideal vs viessmann boilers

Viessmann, founded in 1917, are one of the world leaders in commercial heating space.  They now have 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 have been awarded the following:

  • Red Dot Award: Product Design.
  • Trophée des Usines.
  • iF product design award.
  • Number 1 Trade Partner.
  • Good Practice Energy Efficiency.

Most Viessmann Boiler Reviews online have consistently put Viessmann above all their rivals in the UK market, mainly Worcester-Bosch, Vaillant, Baxi, and last but not the least, Ideal Boilers.  Compared to Ideal Boilers, Viessmann’s foray into the UK market has been comparatively recent, only in 1989.  They are headquartered in the UK 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.

Ideal vs Viessmann Boilers – Review and Comparison

Tech Specs

ideal vs viessmann boilers, tech specs

Just so that our comprehensive review and comparison is unbiased and based on facts, we will compare premium offerings from both Ideal vs Viessmann Boilers.  The Vogue is Ideal’s premium offering.  We’ll compare combi models from both manufacturers with similar output.

Ideal Vogue Combi Review

Ideal vs Viessmann Boilers, Ideal Vogue Combi



Ideal Vogue C32: £1,144.25

The price given above is a boiler-only price, and does not include installation costs and other extras.  For a more comprehensive price estimate, please use our quoting tool below:

The Vogue is Ideal’s premium offering.  If your current boiler is an Ideal (more than 10-12 years old), straight away you can see a major design overhaul.  And because this is Ideal’s best offering, they haven’t pulled back any punches, at least as far as design goes.  Key features:

  • 8-years Warranty as Standard – 10 years when installed with an Ideal System filter.
  • Backlit 3.5” LCD full colour display.
  • Easy to read pressure gauge.
  • Multi-function buttons for ease of use for the end user.
  • Compact, Built in the UK using Premium Components.
  • Endorsed by the Energy Saving Trust.
  • LPG conversion available.
  • Stainless Steel Heat Exchanger*

*Ideal boilers using stainless steel heat exchangers include the Ideal Vogue Gen 1+2 (Combi) and the Ideal Vogue Max (Combi)

*Boilers that

The Ideal Vogue Combi comes in three variants; C26, C32 and C40.  The numbers obviously correspond to the output in Kilowatt.  The C26 and C40 have an efficiency rating of 91.1% and the C32 has a rating of 91%.  Those efficiency figures are similar to the Ideal Logic+ range, as well as most of the Worcester Bosch boiler range.  Along with smart heating controls and weather compensation, that should take the boilers above the efficiency levels required for the Boiler Plus Legislation 2018.

Viessmann Vitodens 100-W Review

ideal vs viessmann boilers, viessmann vitodens 100-w

Model Shown: Viessmann Vitodens 100-W

Viessmann Vitodens 100-W 30kW: – £1,092.20 inc. VAT

The price given above is a boiler-only price, and does not include installation costs and other extras.  For a more comprehensive price estimate, please use our quoting tool below:

Is this the best boiler available in the market today?  We think this might even be one of the best boilers in the world.  Viessmann’s boiler range is second to none.  Don’t take our word for it, take a look at it yourself: Viessmann Gas Condensing Boiler Range

What’s more, the latest addition to Viessmann’s range is the Vitovalor 300-P, which is a power-generating fuel cell heating appliance for detached and semi-detached homes.  That can generate electricity and heat simultaneously with a fuel cell.  What’s more, you get government subsidies of up to £6,000 under the Microgeneration Certification Scheme.  Read more about it by clicking the following link: Viessmann Vitovalor 300-P

Now, going back to the Vitodens 100-W, below are some of its key features:

  • Wall mounted gas condensing boiler, 4.7 to 35.0kW.
  • Compact dimensions save space, particularly when installed in a living area.
  • Heating Seasonal Efficiency (ErP) – 94%
  • Great as a replacement for older appliances due to low installed height and
  • Installation space for adaptation to existing systems.
  • Inox-Radial Stainless Steel Heat Exchanger with 10-Year Guarantee.
  • Heat Exchanger is Patented and Manufactured In-House.
  • PRV (Pressure Release Valve) and Condensate Connection are combined.
  • Built-in Shock Arresters for quiet operation, and to avoid water hammer problems.
  • Low operating noise through extended modulation ratio.
  • Modulation ratio: up to 1:6.
  • User friendly control via backlit LCD touchscreen (option for control via room thermostats).
  • Straightforward access from the front, so no need to leave space at side for maintenance.
  • Also approved for multiple connections to stacks in multi storey buildings.

Ideal vs Viessmann Boilers – Plate vs Inox-Radial Stainless Steel Heat Exchanger

ideal vs viessmann boilers, stainless steel heat exchanger

Viessmann’s Patented Inox-Radial Stainless Steel Heat Exchanger

Manufactured in-house and comes with a standard 10 year warranty

While both boilers come with a stainless steel heat exchanger, Viessmann’s is a bit better.  If you search the internet for a Viessmann 100-W Review, most of them will emphasize the superiority of the Viessmann boiler because of the patented Inox-Radial Stainless Steel Heat Exchanger, pictured above.  It is manufactured in-house by Viessmann.  It is patented.  And it’s made of the highest grade of stainless steel, i.e. Inox.  All of this means the heat exchanger inside a Viessmann boiler will last longer, stay more efficient, and be highly resistant to corrosion for the life of the boiler.  And because a heat exchanger to a boiler is like an engine to a car, you can imagine how important it is for the longevity of your boiler.

Below is a comparison of the lifespan of a stainless steel heat exchanger (in blue) vs an aluminium heat exchanger (in red).

ideal vs viessmann

Ideal vs Viessmann Boilers – After Sales Service

While on the surface, Ideal being more established in the UK market, would seem like the better choice for after sales service, surprisingly that isn’t the case anymore!  When Viessmann first started gaining momentum in the UK, being a German company it was a bit behind on stocking of parts.  Having seen consumer complaints around the same, Viessmann went to great lengths to resolve it by opening their UK based headquarters and distribution centre in Telford, Shropshire.  Not only that, but Viessmann parts are now stocked all over the UK at every Plumbase branch, and their network of engineers is widespread all across the UK.  Which means if your boiler runs into any snag, parts are readily available and a Viessmann engineer can be at your doorstep within 24-48 hours.

ideal vs viessmann boilers, viessmann after sales service

Ideal vs Viessmann Boilers – Our Verdict

Both of them are excellent boilers, and similarly priced.  However, for us the Viessmann 100-W edges it, not only for higher efficiency and being more compact, but also because their heat exchanger is patented technology and manufactured in-house.  So, while you may find Ideal’s heat exchanger in other boilers, that won’t be the case with Viessmann.  Plus, as Germans do, Viessmann have refined their technology and brought the heat exchanger up to very high standards.  Making it more efficient, reliable, durable and highly resistant to corrosion.  Viessmann is our choice also because they are an innovative brand, and are working on exciting new technology as discussed above.  Watch this space.

Ideal or Viessmann Boilers – Buy from Boilerhut

Whichever boiler you want to buy, Boilerhut have made the process of buying a boiler online faster and easier for you.  You can get an online quote on our website within minutes, followed by a phone survey by one of our surveyors.  And depending on your circumstances, we will finalize your quote and install the boiler at your home within 2-3 days.

PLEASE NOTE:  The price you get through our quoting system includes everything that is required, for ex:

  1. A Modern, Brand New A-Rated Condensing Boiler with a Stainless Steel Heat Exchanger.
  2. Flue Options – Horizontal or Vertical.
  3. Chemical/Power Flush and Magnacleanse System Flushes.
  4. Gas run upgrades and associated pipework
  5. Magnetic System Filter and Limescale Filters.
  6. Boiler Plus Legislation 2018 Compliant Smart, Programmable Wireless Digital Thermostats.
  7. Weather Compensation.
  8. Registration of Extended Warranties (Up to 10 years).
  9. Gas Safe Approved Installers = Expert Installation.
  10. Expert Handover and Induction on Boiler, Controls and Best Usage.
  11. Building Regulations Notification, Certification + Commissioning & Testing to Complete Benchmark.

Extended Warranties & Competitive Pricing

ideal vs viessmann boilers, extended warranties

Because we are Premium Partners and Accredited Installers with two of the “Best Buy” UK Boiler Brands, we can offer you not only extended warranties of up to 10 years.  But because we buy hundreds of these boilers at a time, we can be very competitive on price.  You can start by getting an online boiler quote below:

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