Viessmann Limited Reviews

4.3 Rating 1,036 Reviews
84 %
of reviewers recommend Viessmann Limited
4.3
Based on 1,036 reviews
Shipping & Delivery
Delivery Methods
Own Driver, Courier
Average Delivery Time
Within 5 Days
On-time Delivery
Greater than 91%
Accurate And Undamaged Orders
95%
Customer Service
Communication Channels
Telephone, Live Chat, Email
Queries Resolved In
Under An Hour
Customer Service
3.5 out of 5
Read Viessmann Limited Reviews

About Viessmann Limited:

The Viessmann Group is one of the leading international manufacturers of heating systems, industrial systems and refrigeration systems. Founded in 1917, Viessmann remains a family-owned business, however, now has over 12,000 employees across the world.

With 23 production divisions in 12 countries, subsidiaries and representations in 74 countries, and 120 sales offices around the world, Viessmann is an internationally orientated company.

Our commitment to the highest standards of manufacturing has led to our systems being awarded a multitude of awards over the course of our history. Recent award wins include the Red Dot Award: Product Design, the Trophée des Usines, the iF product design award, the Number 1 Trade Partner and Good Practice Energy Efficiency.

Visit Website

Phone:

01952 675000

Email:

info-uk@viessmann.com

Location:

Hortonwood 30, Telford, Shropshire
Telford
TF1 7YP

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My name is not Angela. This is not a good start!!!
Helpful Report
Hi Alison Apologies, it looks like there was a mixup when the installation company entered your details into the warranty registration portal. We can see by referencing your email address provided for the warranty details that your first name was entered incorrectly. Please accept our apologies for the confusion. Kind regards Viessmann
Had a Viessmann Vitodens 050 fitted around 6 months ago. After some installation issues it's been running fine although a lot noisier than expected. Download the Vicare app to communicate with it but the WiFi connection with the boiler is useless so I gave up on it.
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For the first year after the installation the boiler was great, then the problems started. The boiler is very quiet, but we’ve had constant problems with the heating not coming on, or falling to get above 17c. The Viessmann approved installer has come out 7 times and hasn’t managed to fix it. Viessmann coming out this week to hopefully fix it.
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The documentation provided with the boiler is wrong in certain sections. Certain features are not available in certain modes of operation. The response to email queries is poor.
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The boiler is noisy at times that is why the score is low but heats water and central heating well
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Approved installer abysmal… HUG. 3 engineer call outs. Replacement fan. HUG have instructed Viessmann to direct all HUG customers to HUG first… what a pain. High quality engineers but a week lag between fault and call. Boiler seems excellent… anymore issues though it will be out.
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I did a lot of research into new gas boiler options and installed a Veissmann 25kW boiler with weather compensation. I think the product is superb and am very pleased with the way it modulates my CH temperatures. However, I feel the marketing of the product is abysmal; although probably typical of the industry. It is very hard to understand what is being offered. How to distinguish between proprietary and open standards (opentherm) and how to design the best system. Even to compare the two ranges (200 and 100) is difficult. The manuals are overcomplicated as they assume significant knowledge of the system functionality; there is no design guide aimed at the informed client to help explain the options that can be considered if a system boiler has multiple zones. I have selected HeatMiser controls as Veissmann did not seem to offer multi zone modulating solutions unless one installed Divicon which is hugely expensive. I never installed the WiFi interface as I could not work out how to get it working (and your installer suggested it was not worth having anyway). So I give you 5 stars for the product and what it can do but one star for the way you market the product - I am sure you should become the market leader if you could explain how your systems worked and why they differentiate against Greenstar and Vaillant. Also there is nothing for a migration path to your heatpump systems nor any guidance on how these might be integrated in the future. Your website is very difficult to use without prior knowledge of the product range. It could be hugely improved. I am not sure how to answer the questions below as my installer (who is excellent but still learning the Veissmann systems) supplied the unit and installed it for me. The installation started in June (the boiler installation took one week) and I am still waiting for the final controls to be installed; however this is not a problem for me as I am keen to get the details right.
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Viessmann were recommended to me, which is a good start, but since installation completion in June 2022 we have experienced 3 issues with the boiler, installed in a letted residence, 2 of which have required an engineer to attend. It's only 6 months down the line, so it's a good job the warranty is for 10 years I guess.
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Our new boiler was faulty and the first 2 guys who came out. Did not diagnose or fix the fault, didn’t know the app or the appliance. The app is not intuitive, Wi-Fi conextion to thermostat is poor had to move it from optimum position to receive signal.
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Ok, boiler certainly gives out more heat than our 30 year old Potterton boiler did! We would love to know where online we can read how to turn the boiler on manually, we had no heating when you did the updates. Our timer is still on summer time, we would like to know how to change it.
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Not very impressed been fitted about 7 months now and already had engineer out twice
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Boiler itself great , the app not so as there is no geofencing available and im told its a paid for option if it ever gets to uk as only available in germany This should be a Basic n free function considering the current cost of living crisis and high energy costs
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Dear Robert Thank you for your feedback regarding the ViCare app and Geofencing option. This has been passed to the ViCare team to review. Kind regards Viessmann
Seems to be working well I need to understand how to adjust for time & temperature .
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Hi Alfred If you need any advice to help you understand the settings please contact Viessmann's Technical department: 01952 675070 technical-uk@viessmann.com Kind regards Viessmann
Great boiler, but the instructions for use are really poor. Really difficult to just set the heating to come on quickly. It is not intuitive. Badly designed by someone who thinks everybody understands. Try and make it simpler please!!!!!!
Helpful Report
Hi Andrea Sorry to hear you are struggling with the settings on your boiler. Please contact the Technical department who can talk you through what you need to do: 01952 675070 technical-uk@viessmann.com Kind regards Viessmann
The boiler is quite noisy and seems to make a lot of clicks.
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Dear Rob, Thank you for your feedback. If you believe you are experiencing problems with your boiler please contact our Aftersales Department who will be happy to assist you. Telephone: 01952 675 060 Email: aftersales-uk@viessmann.com Best Regards, Viessmann
First of all get my name correct it’s not Tessa? I’m the named owner of product? Ms Justina D’souza. Change your records?
Helpful Report
Thank you for your feedback, I will now arrange to get the details changed.
The boiler itself is brilliant & was fitted beautifully but I’ve been having loads of trouble with the thermostat & the receiver which won’t pair up & consequently the app won’t work. Nobody seems to be able to fix the problem & after 2 months it is becoming increasingly frustrating. Help please!!!
Helpful Report
Dear Steve, I am sorry to hear you are experiencing problems with your thermostat. Please contact our Technical Department who will be happy to assist you. Telephone: 01952 675 070 Email: technical-uk@viessmann.com Best Regards, Viessmann
The boiler seems good but it is not, in a customer-friendly way, helped by its awkward controls.
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Dear Stuart, Thank you for providing your feedback. If you are experiencing problems with the controls on your Viessmann boiler, please contact our Technical Department who will be happy to assist you. Telephone: 01952 675 070 Email: technical-uk@viessmann.com Best Regards, Viessmann
A capable boiler (Vitodens 050-W) but not outstandingly so. Its main letdown is its poor sensitivity to water flow. The kitchen tap, which is within 1m of the boiler, requires opening rather too much before the boiler detects the flow and triggers. My old Ideal Isar 30 (which was the cheap of the cheap) was far more efficient in this manner. Oddly enough the boiler's sensitivity is slightly better when the central heating is running at the same time. Using more water than necessary or desirable (particularly noticeable on a mixer tap) and not very eco so it means it has to lose a couple of stars.
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The product is good , but the product instructions are complicated.
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Viessmann Limited is rated 4.3 based on 1,036 reviews