Viessmann Vitodens 111-w - Review - How does it work.

[@SalimKhan-gk1fh]

An excellent boiler, To a new installer of viessmann’s you will be absolutely impressed with the performance and the water delivery the only thing to bear in mind is this boiler is huge and it’s only a tad smaller than a washing machine! I have fitted 2 so far and the customers have been absolutely impressed with them, And for the size of it it is very gas efficient And quiet in operation

[@AllenHart999]

Have you installed any 222 ?

[@umi2884]

Hi Allen, so will it heat the water in the tank 24/7 ?? what if the occupants are not using the hot water on regular basis, it would be a waste of energy. Dose it has a bypass where it stops heating the cylinder and provides the hot water on demand. Also, could you time the hot water as you would in standard tank setup? Also, what if you have used the entre hot water in the cylinder and you need more instantaneously.

[@centsanta]

Hi there thanks for the review. I’m searching on how to top up the pressure for the 111 model. I found your video for the 100 model. If you could advise how to do it on the 111, I would be highly appreciated. Thank you very much.

[@DrummerBoii1411]

Great video. What is the main benefit of this boiler though? In my home we want to have 3 showers running at the same time (if that ever happens) without water pressure drop. Would something line this help?

[@StuHNomadBiker]

What a fantastic bit of kit, I've just priced one up for a job, perfect for the customers requirements.

[@AllenHart999]

Great to hear!

[@matthewtaylor152]

Hi Alan. Great video. I’ve just had a newer version of this installed, the inside looks the same but the display is different. My boiler is making a noise 24/7 unless hot water and heating is turned off. I think this has been configured in constant mode as part of the commissioning settings and the pump for the heating circuit and / or the water is being pumped continuously. Is this possible to be turned off and only pumped when the water / heating is required? Would it need to be recommissioned (to change from constant mode) or can it be done by changing the parameters? Thanks.

[@akmalkhamdamov8759]

Did I understand correctly that the boiler with 46 liters means that when the tap is opened in 2-3 places, hot water first begins to flow from this 46 liters, and after the end of the water in the boiler, the boiler continues to work in flow mode? That is, does the boiler store hot water all the time?

[@dan123collins]

Great video as always Allen, impressive boiler too. I still think the ATAG Q series are better in the sense they are a storage combi too but simpler - only have 1 pump, don’t have a plate heat exchanger ( they use a small indirect heated cylinder built in for ) and don’t have any plastic or rubber hoses / pipes. Keep up the good work 👍

[@SalimKhan-gk1fh]

I fitted three now Daniel an atag would not have a patch over this 111 model

[@habibmilan79]

Hello Sir, Can you please show/explain how to turn the comfort mode for the Viessmann Vitodens 111-w, I have it brand new and the hot water is not pre-heated it is not enough for a shower and the documentation does not say how to turn comfort on. Regards

[@ElzraMyrthelilith]

Love your videos, they are very good to understand the way the heating works. However they moved my Vitodens to the garage, only heating was on. Now we added pipes for hot and cold water. How do I get warm water? They told us we had to switch a valve, can't find which one . Only cold water comes out atm and when I turn on the water the heating turns on and it get's hot in the house

[@snigie]

Viessmann wun wun wun Great video Allen. I’m a Yorkshire man myself so I’m sure I sound the same Keep up the good work👍🏻

[@AllenHart999]

😂😂😂👍

[@Hogrid-cy]

woon woon woon! Love it :)

[@StuHNomadBiker]

🤣🤣🤣🤣

[@philbrad1973]

Hi Allen, great videos. I am looking at having an a 111-w installed along with a google nest. I understand it can be connect as standard or open-therm, which is best for this boiler? Also the videos you have done on installing google nest don't show any connections for controlling the hot water, which I think the nest can do? Whilst this is fine for a standard combi, but with the storage tank there would be times of a night and when no ones in. When I wouldn't need the 46L tank constantly kept hot. is this an option? Regards Phil.

[@xilinxdth1385]

Hi Allen, many great video's helping me out! But I have this vitdons 111w giving error code F8 - 'Gas valve closes to late'. The installation manual is a bit foggy about it. You ever solved a F8 fault? Edit: My gasvalve was measured ok by applying a rectified AC voltage. I resolved this F8-error by replacing the mainboard. (detail is that the gas-valve requires two relays to close. One from each processor on the pcb. The left microcontroller pin was never sending an activation signal. So replacing a transistor or relay was not an option...)

[@AllenHart999]

Sorry, no

[@TheLegend-nx3mm]

Hi Allan, love your videos, this is definitely the boiler for me, to replace a system boiler, just a couple of things I assume the combi boiler side serves the radiators, and does that mean separate pipework from the storage side to the outlets for example hot feed to say 2 showers and 2 sinks of course mains cold feed to the showers and sinks ? And because of good litre capacity supply of how water there's no need for individual separate pumps for the showers?? Lastly would the combi heating side work OK with 10mm microbore? Kind regards Danny

[@pauleustace001]

Hi, Have been following your PV journey with a lot of interest. Great information :). I currently have the Vitodens 111-W, which I find excellent. I was wondering if you think a system could be configured to work with the Mixegy smart tank. Many thanks :)

[@AllenHart999]

Not really sure how you would make that work tbh.

[@cristinaonaca5536]

Hi Allan! I can see you are very good and you know a lot about Viessmann.... We have one installed about 3 months ago but unfortunately F2 fault appears and our plumber doesn't know much about Viessmann Vitodens 111! Can you tell me what to do, please ? What I can say is the fault came out when the hot water is running and not for the heating! The temperature on the screen is playing up, going up and down till 100°C, the pressure is playing and than stop and the fault appears! I've restart but still have the fault! Many thanks!

[@SalimKhan-gk1fh]

It sounds like you have a blockage in the heat exchanger did you manage to get this sorted out?

[@MrJeco28]

I have also a F2 fault, what should I do please?

[@SalimKhan-gk1fh]

@@MrJeco28 is it going over 80 or 90° if so it probably has a blockage in the plate heat exchanger

[@radfoo]

Trying to work out if a store combi is right for me. I'm trying to work out how to storage part works, say its 40l in the store and i have a shower at 20lpm, would the tank be empty after just a few minutes? Main selling point is the flow rate, but assuming the tank is empty what will the flow rate drop to? Thanks.

[@AllenHart999]

I have never had one run out yet. Thanks.

[@adamjohnston5250]

It will continue to give its same flow rate approx 18litres a minute you won’t know when the tank has been depleted as it fills its self with hot water at the same rate it goes out , Hope this helps

[@ahmedjaved7711]

Hi Allen, thanks for the video it's really good to see as a non plumber. I have an american style ducted heating system and am getting a full install of a new system with this boiler. Anything in particular I should advise my plumber or make sure they dont oversight? Thanks

[@imtiyazseth7478]

Hi Alan great video and very informative,my question is I have job coming up in a month time to do 40 SQM underfloor heating,8 radiators,and 2 bathroom , kitchen and utility,does this model runs on above job I have mentioned.much appreciated your help.

[@PumaRobot560]

Allen do you explain how to fix F2 error

[@ede6293]

Hi Alan, Just went to turn the heating system on after the winter - the pressure had dropped so I’ve topped this back up, the boiler all seems to work fine but none of the radiators are getting hot even at all. Sounds like the pump is running - any ideas on what to look out for?

[@tylerclift1961]

Hi Allen good video, agree about the hoses, not a fan myself, do you know if viessmann recommend inhibitor in their systems? I’ve heard conflicting opinions, some people say yes some say no

[@nicpye248]

I think “engine” is the new manufacturer’s favourite buzz word. I was looking at a fault in an Aqualisa shower yesterday, apparently it could need a new “engine “. Perhaps l could shoe horn in a Perkins Diesel.

[@AllenHart999]

😂😂😂😂😂

[@wazkayani]

Planning to change my system - current Valliant EcoTec with Unvented Cylinder - 2 bathrooms. Could a 111 replace my setup? Could the boiler run 2 showers?

[@chrisrobin1009]

Do these stay warm/give out heat all of the time due to the storage cylinder. We are trying to decide between the 111 and the 100. Our current boiler which is a storage combi I think (ideal istor) is always very hot and heats up the top of the house too much in the summer because of where it is. Would the 111 have similar issues?

[@AllenHart999]

Depends what you need really. Have a good installer give you some advice. Thanks.

[@SalimKhan-gk1fh]

They don’t give out much heat at , no more than a normal Combination boiler, you would virtually have to stand really close to it or put your hand on the boiler to feel any heat , the storage cylinder inside is fairly well insulated against heat loss

[@lloydlawrence2009]

Hi Allen, would you reccommend this boiler to potentially replace a Potterton Powermax HE 85l. This boiler was installed when my house was built in 2004 and is getting to an age whereby I need to start thinking about replacing it. My only concern is the flow rate of the Potterton Powermax HE is 30 l/min and the 111-w has a flow rate of 18 l/min and I'm not quite sure if I would be happy with the drop off in flow rate. Property is a 4 bed with bathroom, en-suite, kitchen and utility room. Doesn't seem to be many options on the market when it comes to a combi storage boiler these days.

[@johnburns4017]

The internal CH expansion vessel. How big is this? What is the maximum it will do in a CH system before an extra vessel needs fitting?

[@TheWellington2006]

Hi Allen, Really enjoy your video's and this one intrigued me. Have been quoted for an unvented cylinder but was wondering if this boiler would be sufficient for a household with two bathroom's,as in having hot water in an instant, mainly just two power showers are used.Not sure of the pros and cons of having a separate water cylinder running along side the boiler, compared to this 111.Thank's.

[@waseem4030]

Hi Allen, I installed Viessmann 111-W 32kw boiler is providing central heating but it is not providing hot water, on side always remains red error triangle. Would you please help me out with this problem?

[@johnburns4017]

Do they still sell these with those awful rubber hoses to the main heat exchanger?

[@BigT7591]

Hi Allen, I have had one of these now for around 4 yrs. It has had a problem that Veissmann have tried and failed to fix. Now they are saying it is not under warranty!!! Anyway you seem to know more about these than they do. The boiler works great apart from a noisy changeover from CH to Hot water. It is only when the CH is running then I call for hot water. When the temp falls in the tank and the tank call for heat I get a loud bang as if a solenoid is not damped on changeover. I can't see how a stepper motor can allow that to happen. They have changed the motor but problem is still there. Have you seen this before? If so did you fix it? Any info would be great, Thanks

[@amandasmith8084]

Did you ever get this sorted as I am having the same issue as you? I have had this issue on and off for the last 3 years. It’s more problematic in the winter months. I am pulling my hair out and its getting very tiresome. Any additional comments would be greatly appreciated.

[@t190uk]

@@amandasmith8084 I had the same problem with my 111.....seems to be an issue with the diverter valve sticking. Mine was replaced under warranty after the 1st year.....Viessmann aftercare was brilliant, came out the next day from reporting it online the night before!.....It's been 2 years now and I've noticed the very odd time it's making the same banging noise. Mine only makes the noise in this scenario.....CH has been on in the evening and then has been resting for a while. Once I use the HW it bangs at this point as the diverter valve is shifting across. The Viessmann engineer showed me the previous valve....it's basically a rubber cylinder block inside a tube and it moves back and forward when diverting either for CH or HW. The rubber gets stuck against the tube and then released all of a sudden causing a banging noise. It's not doing any damage but just doesn't sound very refined. Hope that helps

[@t190uk]

I had the same problem with my 111.....seems to be an issue with the diverter valve sticking. Mine was replaced under warranty after the 1st year.....Viessmann aftercare was brilliant, came out the next day from reporting it online the night before!.....It's been 2 years now and I've noticed the very odd time it's making the same banging noise. Mine only makes the noise in this scenario.....CH has been on in the evening and then has been resting for a while. Once I use the HW it bangs at this point as the diverter valve is shifting across. The Viessmann engineer showed me the previous valve....it's basically a rubber cylinder block inside a tube and it moves back and forward when diverting either for CH or HW. The rubber gets stuck against the tube and then released all of a sudden causing a banging noise. It's not doing any damage but just doesn't sound very refined. Hope that helps

[@amandasmith8084]

@@t190uk thank you for replying I called Viessman out again and they have replaced the diverter cylinder so no longer have the issue It’s just a shame it has taken them a couple of years to fix the issue 😳

[@imtiyazseth7478]

Hi Alan does this boiler have secondary hot water return pipe ,like unvented hot water storage cylinder.

[@luciansarmas1055]

Hello! Can help me how to top the pressure up? Thank you!

[@AllenHart999]

Watch the video

[@rzvmrs]

@Allen, are you specialized in Viessman boilers? I am currently looking for a way to control the 111-w through a Vitoconnect module and the Vicare app. But I can’t find an interface on the boiler where I can connect the Vitoconnect. Any tips on this?

[@davidrowbotham7344]

Hi, can you tell me if this 111 model has the facility to divert surplus solar PV electricity to preferentially heat the water in the integrated tank?

[@joecraven2712]

Not fitted one of these yet but if the hw store is the same as an unvented cylinder does that mean we need controls on the cold mains in?

[@stevencoomber1075]

I replaced my old boiler with a new Viessmann Vitodens 111-W and it has stopped working after just 1 week! It displays an error code F4 and performing a reset doesn't clear it. Viessmann are coming out tomorrow to have a look at it. Not a great start

[@stevencoomber1075]

Viessmann engineer arrived this morning and corrected the issue. It was just the cable running to the heat exchanger which was immediately replaced. Boiler all working well again!

[@BABYCHAOS26]

This is the boiler that should be in my house, I’ve got a standard bathroom, en suit and a cloakroom WC. I’ve got a Vaillant eco tec pro 28 which was already fitted when I moved in. It does ok as we don’t really run multiple outlets very much but it would be nice to have the freedom. Hopefull I’ll be moving house in the new year so it’ll not be an issue much longer.

[@luckystrike656]

the vitodens 111-w b1ld/26kw with 46l tank? It is huge!! I am not sure I have space for it. How is the reliability?

[@louisshort5298]

Allen what’s the best stat/programmer to use with the 111? Thinking of putting one in my own house, wanted to know what stat works best with them.

[@mmcguireiphone]

Does I connect to a thermostat in living room etc?

[@keithbrueton]

NICE but a bit too big i think does it come with a forklift Allen

[@AllenHart999]

I agree it is very big but smaller than a boiler and an unvented cylinder. 👍

[@johnburns4017]

@@AllenHart999 And most probably cheaper. Look at how much hot water it delivers in 20 mins, 30 mins, etc. Then see how big an unvented cylinder you would need. Plus the floor strengthening. :)

[@ianmoss20102010]

I have this boiler and it will not fill a bath.fill a bath only half way then goes cold while the tank reheats I have had engineers from viessmann and they both said that these boiler are only for showers

[@billyhunter2937]

Can i fit this into operate with my coal fire central heating system

[@GrahamDutton]

How does it compare with the 222 model?

[@janisbalcuns89]

If i turn heating off why on the display temp keeps rising ? till 80

[@AllenHart999]

Not sure? Did you sort it. Thanks.

[@Zaine22]

Allen can you please inform on the difference between a combi mate and a inline scale reducer thanks

[@Zaine22]

Allen you still reply to comment ?

[@Razz60]

Thanks i am tempted to install one these now😀😀 again great vid well explained again Allen

[@AllenHart999]

Amazing results. Well worth it. 👍

[@jimscott1782]

Hi Allen. Many thanks for the video. I am looking for a boiler to replace my old floor standing Highflow 400. Should I be concerned that the stated flow rate for this is >18, whereas the Highflow 400 says 20lpm?

[@themanftheworld8439]

Would you place the Viessmann Vitodens ahead of the Baxi Platinum/ Duo tec ?

[@AllenHart999]

Baxi Platinum is a proven boiler for me over 10 years plus, Nothing will ever come close to that. This is a different type of boiler and for a different application.👍

[@chrisi970]

Cupboard fit😂 Great vid 👍🏻I did a training day in there factory a few years ago👍🏻

[@AllenHart999]

😂😂😂😂

[@darrenhoffman8532]

Combustibal matteral allan?

[@tommyblackman7119]

Does this type of Combi give better DHW flow rate or would it be the same as normal incoming cold main ?

[@johnburns4017]

It cannot make the mains pipe a larger bore. ;)

[@leestaps]

Hi allen What pressure and flow rates are you getting to this install Thanks

[@AllenHart999]

18 l/m @ 60 degree’s 👍

[@leestaps]

Thanks for the quick reply Im getting 15 litres per minute and not really suitable for a unvented cylinder, is there 2 showers at this property and if so how did they perform simultaneously? Thanks again

[@AllenHart999]

@@leestaps You could always boost the mains if needed.

[@leestaps]

Yeah true, but theres not much change from £1000 with booster sets, sometimes we are too quick to remove tanks in loft, but in property’s with more than one shower sometimes its better to stick with conventional, obviously if moneys not a issue, thanks for the advice Keep up the good work

[@johnburns4017]

@@leestaps A main pressure system relies on what comes down one pipe. Simple. You can make matters better by having a dedicated 22mm inlet pipe from a full bire stoptap to the combi, even if a 15mm mains supply. Tee off at a "full bore" mains stoptap taking all the cold supplies on a different line. Divide and rule. Take cold to showers off the combi inlet pipe just before the combi, as any pressure/flow fluctuations around the combi affect the hot and cold to the showers as near equal as can be. Balance the hot and cold outlets by having wondervalves on each outlet. Reduce the flow on none essential outlets like basins, dishwashers, etc. Also fit aerated shower heads like Raindance heads to reduce water consumption.

[@frankbennett8877]

Great video. I find it hard to understand your accent at times I tried Google translate but it was asking what country you are from. Are you English.

[@paulhill1665]

Yorkshire born, Yorkshire bred, strong in T’ arm, and .....

[@Shaxxie]

How can you not understand? He is very clear. Excellent vid btw

[@WatfordWobble]

63kgs. That’s one very heavy boiler. That must take some strength to hang the boiler.

[@creative7530]

Brilliant video!!! Viessmann are a great bit of kit👍 To be fair I dont fit anything else.

[@AllenHart999]

Which model do you normally fit? Thanks.

[@creative7530]

@@AllenHart999 I normally fit the combi vitoden 100. No complaints here 👍 Keep up your outstanding work / videos Allen.

[@AllenHart999]

@@creative7530 I like the 100👍 Have you installed any 200,s

[@creative7530]

@@AllenHart999 No not yet. I have serviced afew and they are very smart. Not sure some of the customers want to pay the extra costs. Which is a shame.

[@k20aa]

I tell you what I like about these combi boilers . There is plenty of room to get into to work on it LOL

[@AllenHart999]

You could sleep in it 😂😂😂

[@k20aa]

@@AllenHart999 The only reason you fit them is because you have cut your hands to ribbons on those Worcester heaps of junk . LOL . I cant wait to see on in the flesh . Great vids as normal

[@AllenHart999]

@@k20aa The performance from them is amazing. 👍

[@ggdionisio]

Thanks for your excellent video, really helpful. I am trying to decide between the Viessmann Vitodens 111-W and the Worcester Bosch Greenstar 8000 Life 45kW. They apparently are comparable, as they are both advertised at 18l/min at 35 temp rise. However, looking at the 111-W technical manual in page 11 viessmanndirect.co.uk/files//f6ed20c9-c436-4bc6-b2c8-aaa400f4ba95/1705%205777747VPA00004_1%20Technical%20Guide.pdf#page=11 quotes under DHW loading cylinder initial output for DHW heating from 10 to 45 °C as 200l/10min (20l/min) for the 35kW version of the Vitodens 111-W. That would make the Viessmann 111-W superior to the Bosch 8000 Life 45kW. But I wrote to Viessmann and they say "there is a flow restrictor in the boiler" that would limit to 18l/min. That was confusing. What are your thoughts? For context, I am looking into running 2 showers from the boiler and the main water flow rate is over 25l/min. Thank you very much in advance.

[@AllenHart999]

Viessmann any day for me, I wouldn’t have a WB

[@SalimKhan-gk1fh]

ggdionisio So which one did you buy in the end of viessmann or the Worcester Bosch?

[@darrenhoffman8532]

When the boiler gose rong you cilnders nakerd costing you twice the ammount i gess

[@SproutyPottedPlant]

Ohh wow it’s like a little boiler in a big boiler!

[@loafersheffield]

The day will come, mark my words, when they will be the size of a thimble. When you take the cover off and have a look inside, you will be able to hold the F A Cup Final in them. Then they will be known as TARDIS. This will only ever happen if gas is still allowed to be used and Greta Thunberg hasn't persuaded policy makers to tax fart emissions.

[@SproutyPottedPlant]

Also I wish you were my gas man!

[@BABYCHAOS26]

Viesmann now have the reputation that Worcester used to have before they turned poo poo

[@SuperSk8boardp]

Viessmann won won won :D