Combi Boiler Reviews - Viessmann Vitodens 100 Review - old and new 

Thanks.

Glad i could help. Thanks for watching.

Good stuff!

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It sounds like your boiler is running on a dirty system I have about nine of WB1C boilers in service and all are doing well do you have a magnetic filter on yours??

@@SalimKhan-gk1fh Thanks for responding: yes we have a Fernox TF1 fitted but it doesn't seem to be collecting anything. Instead we are getting metallic residue in the heat exchanger and expansion chamber. The system was flushed through before fitting so I think I need to get a second opinion on the installation. Maybe the filter not fitted right?

You wouldn’t of needed that if you installed a Viessmann cylinder.

Yes very well designed great gas efficiency and most of my customers have noticed how quiet they are too Which one do you have?

I got the 2021 version 100-W 35 kW combi installed start of May 2021, It is working well on Opentherm for me, this 2021 version of 100-W allowed to set max CH hot water flow temp while using opentherm for boiler settings. The Vicare app allows me to remotely see if the boiler burner is operating and what modulation % , and the flow temperature set point called by the opentherm controller (I am using evohome) and what flow temperature reached . I find this very useful as the boiler is in the loft . The turn down declared is a low of 3.2 kWhr , but I suspect is lower as the % on the burner goes down to 8% (indicating 12.5 :1) , I suspect that Viessman dont want to declare this because the turn down capability gap between this and the far more expensive 200W (1.9 kW/hr, ie 17: 1) becomes narrower. I am not sure what justifies selecting the 200W , because the 100W now have the lambda pro combustion feature of the 200-W and does not have does rubber stupid hoses . One neg point however there is no longer an mini expansion vessel included inside the boiler as plastics supposed to be rated for 30 bar (I would still fit a mini expansion vessel, I dont have that much fate in plastics as they age > 10 years )

Note added, I originally was going for the 200-W due to its best in market turn down , but I wanted opentherm which the 200-W , I learned , does not strangely cater for . The 2021 100-W , ticked 95% of the boxes for me of the 200-W and did not have the rubber hoses (which seem a odd design choice for premium boiler),

Why wasn’t it covered?

@@AllenHart999 Our heating engineer said it's classed as a consumable item apparently.

Burrmorg ,Keep up with the servicing and check your filters regularly ideally twice a year and you will be fine, I have some of the older models in use and they continue to be strong in reliability and performance .have you had your Heat exchanger apart and washed out?

Lots of good boilers these days. Thanks for watching.

Thank You

Thank You👍

This one has a 10-year warranty. So it should be ok for a while. Thanks.

@@AllenHart999 * Only if fitted by a Viessmann approved installer.

@@AmirKhan-qx2lr You also need to pay extra to update it to 10 years. 👍

Great suggestion!

I have never seen a Viessmann heat pump. Maybe one day 👍Thanks for watching.

Allen Hart didn’t even know they made them lol but I was looking around at what’s available, came up with the known ones like Mitsubishi Ecodan, hitachi therma v, samsung etc then came across Viessmann one and everything seemed better on it, just seemed one step ahead in many respects and I guess that’s typical of the expectation in regards to German engineering. And looking at the video you have just done, the rubber hoses didn’t seem like a good idea, still not too keen on plastics lol but that’s more my personal perception on plastic for what it is rather than proven functionality. But certainly this new design looks pretty solid, well built and designed what with the copper pipes, stainless heat exchanger, built in PRV with combined discharge into condensate and intuitive menu design. I haven’t purchased a heat pump yet but it’s the intention to do so, only thing is they are one of the more expensive brands... but I guess if the quality and design lives up to the name it’s worth it for reliability and how well the product performs. Shame heat pumps are so expensive but when installed right, they are the way forward I think. Installation is a big issue though, only reason I’m considering it is because underfloor heating is being installed throughout. I did actually look into beneath heat, ironically they are only about a mile or 2 down the road. But they said they strictly only deal through merchants, and a few others wouldn’t give me the design to look at before committing which was important because 1 supplier came up with a design which would of had cold spots.

@@Clicksystems I would really like to know more about heat pumps. Thanks.👍

don't don't buy viessman heat pump! it just a oem product from China , not worth the money at all. turn to the airconditioner brands like daikin or mitsubishi for a the heat pump that worth your money.

Might have been range rated.

Hi Paul. Honestly I do not know the answer to the question. Both very good boilers. Thanks

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-hmAnfVEUE5s.html

Not really just yet. Smart controls maybe. Thanks.

@@AllenHart999 Thanks, would be great to diagnose problems, system status, adjustments on a smartphone. Maybe someday!

@@baypos I feel that is the way we are going. What boiler do you have?

Yes, No, Well maybe, Depends. It actually depends how bad the heating system is. The system needs to be clean. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-3VcMnZEbrpg.html

www.beneathheat.co.uk/

No idea sorry.

metallitech hi call viessmann,they will come out and reprogram it for you, they done mine no problem

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Customer had left the filling loop open on this and it managed fine. Thanks.

Hi Paul. Thank you for the question, Unfortunately not, You would need to buy a standoff bracket. Thanks.

@@AllenHart999 are they expensive Alan do you know and could I build a timber frame faced with 18mm ply to create the gap instead? Or is that not allowed? Thanks in advance.

@@AllenHart999 Thanks Allen, sorry for my previous mispell.

050 has rubber hoses.

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-9v9YXRXe3sk.html

Not sure what you mean?

No sorry.

steowong The now older model WB1C came in during 2012 and it was used right up until the later B1kc Which is the one with the touchscreen display and copper hoses

max navsa I wouldn’t buy British anything anymore. The constant cost cutting has resulted in poor quality products. Germans are leading everything.

Personally i'd buy british and support british manufacturing. we still make some good products.

Lots of good british stuff. Baxi platinum has been one of the best boilers i have installed over the years.

I do not really install the 050 but i will if i get chance. Thanks.

Philippe Yon I have installed most manufacturers over the years. Viessmann doesn’t need a blow off so maybe a little easier, Both very good boilers though.

Allen Hart the control panel seen to be straight forward . Great video again , thanks , very helpful and informative.

@@7dayplumbingservices195 Thank you..

Yes and yes

Thx for the quick reply, off to buy one now.

I would go for a Viessmann 100 out of them. Thanks.

@@AllenHart999 Hi Allen just a quick question. Do you have to get your boiler serviced by a plumber accredited by the manufacturer of your boiler in order for your warranty to be valid. I.e if I got a vaillant or viessmann boiler will I have to get it serviced by plumbers accredited by them in order for my warranty to be valid. Many thanks in return.

@@saminaali675 You could you anyone who is gas safe and has boilers, I would advise you to use someone approved though if you don,t know anyone. Thanks.

New 2021 version of 100-W combi, is designated at B1KF , you can download the installation manual from the Viessmann UK web site

Thanks for the comments. Happy new year.

Thank you for your interesting comment you put up for us I just wanted to ask you which country you are in ?i as here in the UK it is very uncommon with most people and heating engineers, but I generally run many of my viessmann boilers on a diluted antifreeze solution , the boilers seem to run betterQuieter I’ve also noticed that heating efficiency improves as I assume the antifreeze solution is easier to heat up , it most certainly circulate a lot easier and quieter. what are your thoughts on running these on antifreeze? Also with the solution the rubber hoses on the flow and return do not seem to get sludged up at all. I understand from viessmann technical they are designed to run on antifreeze.

@@SalimKhan-gk1fh Im from Latvia. As I mentioned viessman supports most heating liquids but Bosch/Junkers/Buderus heat exchangers do not. While it's rare here that people run antifreeze/elfaterm/other heating liquids those who do have mixed results. Primary issue is that most technicians dont carry pump with them at all times and the liquid is messy if your boiler is installed in kitchen. Regarding efficiency Its quite opposite, bit less efficient and sometimes boiler has to conpensate inertia (water has higher heat energy capacity than any other liquid, thats why yours heats "faster" with special with antifreeze). Benefit of course is lack of calcium and other minerals in system.

@@bobsempires Greetings to latvia from UK my friend, I hope you are all well and surviving this difficult year thank you for the information which is very valuable I think you are a proper engineer may be trained in viessmann boilers ? it is very difficult to get information here in UK as the heating engineers are not very interested and just use inhibitors on every install ! Installation quality is higher across Europe, you will be surprised to know I am actually usingVolkswagen G13 antifreeze! [It’s environmentally friendly and biodegradable and not toxic] In a Viessmann 100 combination boiler I am using a approximately 5 L concentrated antifreeze in 80 L system capacity, so around 5% concentration, I am honestly finding this is working very well as I said the heating system is heating up much faster with the boiler quieter (reduction in pump circulation noise?) and gas consumption on smart meter Seems to be improved, after five years I removed the plate to plate heat exchanger and it was completely clean! The UK has big problem with engineers putting brand-new boilers onto old very dirty systems maybe you don’t have this problem in Europe? Everybody is complaining about the rubber hoses blocking in the viessmann vitodens boilers When actually they have no understanding of system water quality!!!

No idea really. You would of thought others would do it now 👍

Much easier 👍

Peter your boiler has been set up on a 4 pipe system that supplies the cylinder as well, You can revert it to a standard Combination boiler where it will be water on demand, Hope this helps

Absolutely, Every year really. Thanks.

Depends what is required really, I would always go and look at a job and see what’s needed. Thanks.

@@AllenHart999 Hi Allen, thanks for the reply, a plumber has had a look already and has said it's a simple swap, how many hours would you estimate do you think? More like 4 hours or more like 8 hours, as that is the range of time I've read for exchanging a boiler. 1 man, who has a lot of experience. Thanks

@@avolpe734 Not possible to do correctly in 4 hours in my opinion, Take longer than that to flush. Thanks.

@@AllenHart999 The installer is not planning on flushing the system, despite me mentioning it. He said that would be "an extra £400" for a power flush, on top of the £500 quoted for installation. Does that seem worrying to you? (Green liquid is leaking out of 2 upstairs radiators too). The current broken boiler was last cleaned in 2013 I believe, and it was installed in 2011. It recently broke with error code E160 fan/fan PCB error. Many thanks

@@AllenHart999 PS. Current radiators are 33 years old

Tim Hancock I’ve serviced quite a few as well and just out of curiosity I had a friend check the PCB board and the only fault on it was a capacitor which had failed you may want to bear this in mind as they’re only about £2or £3 to repair!

The biggest difference is the 050 has rubber pipes and the 100 has copper, I have never installed an 050 so i am not that clued up on them. Thanks. Happy new year.

@@AllenHart999 isn't thier an option to buy replacement copper pipes from them to replace the rubber hoses with? Thanks in return.

Sophie Anderson , it’s the same plastic as used in cars ,doesn’t give any issues just as the rubber hoses It’s all down to system cleanliness Sophie

Just wanted to say this was a great video! Really helpful

Scott Vincent Yes it’s very easy 👍

Yes i would like to see that as well please Allen

Daniel Angel Absolutely, Very nice boilers

@@AllenHart999 cheers Allen i actually serviced a viessmann system boiler today and what a joy it was to work on, stripped down burner etc in 5 minutes and best of all no cut knuckles....lol

Daniel Angel I switched over 10 years ago Daniel and I’ve never looked back I’m happy ,the customers are happy with the performance impressive gas savings and reliability but of course only if serviced properly

What's the issue with Boxt if you don't me asking? I'm shopping for a boiler right now. Will probably go with a veissmann.

I don’t install Vaillant boilers, The Viessmann 100 is a very nice boiler 👍

oliver smith very very good question. You can use any 3rd Party controls with the 100 range. Personally I like fitting nest thermostats when possible

Both very good boilers. 👍

Thanks but if you had to choose, which one would it be ?

Akhil Varghese i would definitely go with viessmann, Miles ahead of any other boiler brands

@@SalimKhan-gk1fh thanks but do you know what the warranty is like and are parts expensive outside of warranty ?

Get yourself a Baxi , great boilers and 10 year warranty.......👍

Great videos Allen!

By the way my email address is serkan_kosker@hotmail.com

Stay safe. Watch this one just in case. Thanks ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Hh5lFC7VI4U.html

Thank You.

Hi Paul. Thank you for the comment. Most manufacturers have a minimum charge of at least £300 that’s the going rate. Thanks.

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Ian Blaymire Ha Ha, I wish.