The difference between a warranty and a guarantee as I understand it is with a warranty they will investigate any problems and put them right but not necessarily free of charge.A guarantee will ensure problems will be fixed without charge.
Nice video but misleading about the stainless steel main heat exchanger of the Viessmann being better in a hard water area than the Worcester's Aluminium one since the main heat exchanger water is virtually never changed and should always have a corrosion inhibitor added at installation (such as Fernox). Both boilers will have, I imagine, grade 316 stainless steel hot water plate heat exchangers for the HWS. To be picky saying the Viessmann has a stainless steel main heat exchanger is meaningless without mentioning the grade, again it's almost certainly grade 316. N.B. Worcester from day one (of their manufacture of condensing gas boilers) have added Silicon to the melt of their Aluminium castings for their main heat exchangers, which increases considerably the corrosion resistance. Wall thickness of the Aluminium main heat exchanger is, I believe, 6 mm + but the conductivity of the Aluminium is so good that it isn't an issue.
Just some info based on my experience of combi's. The boiler cannot do two things are once. It cannot give you hot water for shower or baths and keep the heating going. So in winter you get up. House is nice and warm. Then the family all hit the showers. The house cools down noticablebly. I had a Vallient eco tec 937 fitted. About 7 years ago. Something to consider. Folks.
I’m Worcester Bosch accredited, but they don’t support Open Therm and I believe that the Viessmann does so you could use 3rd party Weather Compensation such as Nest on the Viessmann but you would have to use the Bosch Easicontrol for this function on the Worcester and it can not run all types of system eg S-Plan + UFH etc, Worcester should add Open Therm then it would be the best product in my opinion
Fitted plenty of Worcesters on s plans with under floor heating and nests Worcester are my boiler of choice and Viessman just put the unopened box in the skip they are so unreliable and poorly made.
@@paulgannon3261 how do you get the nest to control the UFH zones? & how are you getting the Nest to communicate with the Worcester with regard to weather compensation?
@@garyhawkins9246 the under floor has a zone valve as does the heating. The nest controls the motor to the zone valve and that operates the end switch and bingo they work. Done dozens.that way just like an S plan
@@paulgannon3261 yes I understand that the Nest can open and close a zone valve and the end switch call the Boiler Live Return, but what if your customer wants to run different Temperatures in different rooms for the Underfloor Heating? In this instance you would need something line a Heatmiser UH8, that makes the nest redundant, you could only use the nest if you run all of the Underfloor Heating at one room temperature and even then there is still no way to accurately use the Nest for Weather compensation with the Worcester Boiler as Nest uses Open Therm and Worcester doesn’t, don’t get me wrong, I like Worcester Boilers, I fit Worcester Boilers, but they need to up their game on Controls with regard to the new Part L regulations as do pretty much all the Boiler manufacturer’s
@@garyhawkins9246 Yes but underfloor only runs at 45c and is mixed at the blender so technically any weather compensator would not drop flow temps enough to effect it and if it did drop to say 55c then hardly any mixing would be required. Multiple zones can still operate in one manifold with independent actuators and separate zone stats
@@Heatable was there a review of the new 200-W in the end? I'd love to have that 98% efficiency and 1:17 modulation, but I'm finding little info on it from UK users and retailers - not a single actual review of the new 2021/2022 version.
You need to up your game and explain the pros and cons of each boiler v price and then ask for a preference from the customer. Just quoting a price and a boiler doesn't cut it for a well informed customer. I'd rather have a quality boiler with a higher price but others maybe the price is all.
Thanks David, we'll take note for any upcoming videos. Although, it's important to remember not everyone is as 'well-informed' and sometimes just wants a simple explanation without too much jargon!
@@Heatable Agree less is more in some cases. Just to add to my comment, why not offer two options a lower cost option with say a shorter warranty and basic design verses a more expensive option emphasising the design specs/quality eg 12 year warranty and stainless steel burner and other bells and whistles. Just a thought.
Morning Guys, I am moving in to a 3 bed bungalow and want to upgrade to a combi boiler, there's 10 rads , there's an ensuite bathroom with electric shower and separate bathroom with bath and power shower, currently the boiler is in garage. I want the best efficient boiler/ hydrogen ready money can buy? Any advice would be much appreciated, kind regards Danny uk
Hey 👋. No problem at all! Based on the information you provided, the best, most efficient, hydrogen-ready boiler you can buy is going to be either the Viessmann 050 or the Viessmann 100. They are both hydrogen-ready and A-rated efficiency. If you choose to buy your boiler installation through Heatable, you'll also get a ten-year guarantee on both these boilers. What's more, if you go for the Viessmann 050, we're offering an energy-saving bundle, where you get a free Google Nest smart thermostat included with your installation. Let us know if we can help with anything else!
Hi Guys, just a question that I can't find an answer to, and that when trying to get an on line quote should be asked when trying to obtain an estimate, is that , is there any conflict replacing a boiler from a standard heating system ie, copper tank set up to a combi, the exsisting pipework size mine being 10mm microbore?? Kind regards Danny
@@TheLegend-nx3mm Hey, thanks for getting in touch again! Microbore will work with a combi boiler, it's just more prone to blocking. If your system is in reasonable health it shouldn't be a problem. P.s. we hope you're using us for an online quote. 😉
@@Heatable absolutely already had a quote from you guys on line. I have been advised a flush is worth considering before a new boiler is fitted, not sure you offer the flushing service though?
Surely both boilers should start @ 15kW, a 10 bed house might need 30kW assuming reasonable insulation. Disappointing that the WB doesn't have a stainless steel heat exchanger. 2-0 to the Deutschlanders.
I like the sound of the internal parts on the Viessmann, they sound better quality? I have a victorian house with 3 floors. Does this have any bearing on boiler choice, i.e the height that the boiler would be pushing water upstairs ti the top floor? Pump and expansion vessel, does it matter? Also is it worth installing an inline water softner at installation, does it help to maintain efficiency of the internal parts and heat exchanger. Just thinking of trying to do the best job at installation as possible in regard to boiler life and efficiency. Does @Heatable also upgrade radiators at the same time too and open therm sensor to the boiler. Apologies for many questions 😉
I think it's only boiler replacement. I asked for a new boiler and a switch from vented to unvented and they wouldn't provide a quote, whereas they quoted for boiler only switch. So my guess is no for replacement rads..
Viessmann every day of the week - BUT I would recommend the 200-W. It is the most advanced and efficient gas boiler sold in the UK! The 100-W is a UK only budget model that isn't sold in Germany. One other side fact - Viessmann is a family owned business still.
@@aliasgharkhoyee9501 WB Website states this for all their 8000 series. Heatable have a preference/bias for the Viessman. Source? they say it in their other videos.
Just arranged to have my old system boiler replaced with a WB 8000 so found this video very interesting. 40mm high? I never realised the WB 8000 was so small :P
You probably need a blending valve (you might already have one - better check) on the UFH manifold to allow a lower circulating temperature through the UFH to that of the radiator circuit.
@@johnringeling8892 WB use Cast Aluminium with added Silicon in the melt for much improved corrosion resistance. The wall thickness is about 6 + mm but the conductivity is so good that it doesn't matter.
Our other favourite brand that offer a stainless steel heat exchanger, is Alpha. The Alpha E-Tec is a fantastic boiler with a stainless steel heat exchanger at a low price!
@@Heatable thanks, also if I want to replace my single convector radiatiors with double convector radiatiors for the same width and height will my flooring have to be lifted up?
I have just had a viessmann 050-w fitted 2 weeks ago, its to high tec for me .There were poor instructions for the home owner, in fact there was'nt any. I had to phone the installer for information I was affraid to touch any thing on the boiler in case it shuts down. I also don't like the use of the app, loose the internet and there's not heating. If it's off you can't put it on and if it's on you can't put it off . Too high tec for me.
@@rogerbuckland4214 there both ment to be German, but one uses its brand recognition the other is market leading product, I feel for anybody with a Worcester.
@@SalimKhan-gk1fh We wanted to compare the two as these are our best-selling boilers. They both have their own benefits, but we couldn't pick a favourite.
@@Heatable From an engineers point of view viessmann is easily the best boiler and best boiler brand in general obviously Worcester Bosch is more advertised and more well-known but from a quality point of view you cannot beat the viessmann brand.I am glad heatable are promoting them quite well these days I only fit about 10 to 15 a year you must be fitting thousands!?
The difference between a warranty and a guarantee as I understand it is with a warranty they will investigate any problems and put them right but not necessarily free of charge.A guarantee will ensure problems will be fixed without charge.
Yes
Viessmann all the way
What makes you prefer Viessmann Jay?
Bought the Viessman 100 a year ago. Only problem I have is trying to bind it to a Honeywell T3 room thermostat.
Nice video but misleading about the stainless steel main heat exchanger of the Viessmann being better in a hard water area than the Worcester's Aluminium one since the main heat exchanger water is virtually never changed and should always have a corrosion inhibitor added at installation (such as Fernox).
Both boilers will have, I imagine, grade 316 stainless steel hot water plate heat exchangers for the HWS.
To be picky saying the Viessmann has a stainless steel main heat exchanger is meaningless without mentioning the grade, again it's almost certainly grade 316.
N.B. Worcester from day one (of their manufacture of condensing gas boilers) have added Silicon to the melt of their Aluminium castings for their main heat exchangers, which increases considerably the corrosion resistance. Wall thickness of the Aluminium main heat exchanger is, I believe, 6 mm + but the conductivity of the Aluminium is so good that it isn't an issue.
Just some info based on my experience of combi's. The boiler cannot do two things are once. It cannot give you hot water for shower or baths and keep the heating going. So in winter you get up. House is nice and warm. Then the family all hit the showers. The house cools down noticablebly. I had a Vallient eco tec 937 fitted. About 7 years ago.
Something to consider. Folks.
If your house cools down that quick then you have a problem with heat loss so don’t blame the boiler
@@grumpygit447 Agreed. #InsulateBritain want a word with Ramanlal lol
🤦🏼♂️
I’m Worcester Bosch accredited, but they don’t support Open Therm and I believe that the Viessmann does so you could use 3rd party Weather Compensation such as Nest on the Viessmann but you would have to use the Bosch Easicontrol for this function on the Worcester and it can not run all types of system eg S-Plan + UFH etc, Worcester should add Open Therm then it would be the best product in my opinion
Fitted plenty of Worcesters on s plans with under floor heating and nests Worcester are my boiler of choice and Viessman just put the unopened box in the skip they are so unreliable and poorly made.
@@paulgannon3261 how do you get the nest to control the UFH zones? & how are you getting the Nest to communicate with the Worcester with regard to weather compensation?
@@garyhawkins9246 the under floor has a zone valve as does the heating. The nest controls the motor to the zone valve and that operates the end switch and bingo they work. Done dozens.that way just like an S plan
@@paulgannon3261 yes I understand that the Nest can open and close a zone valve and the end switch call the Boiler Live Return, but what if your customer wants to run different Temperatures in different rooms for the Underfloor Heating? In this instance you would need something line a Heatmiser UH8, that makes the nest redundant, you could only use the nest if you run all of the Underfloor Heating at one room temperature and even then there is still no way to accurately use the Nest for Weather compensation with the Worcester Boiler as Nest uses Open Therm and Worcester doesn’t, don’t get me wrong, I like Worcester Boilers, I fit Worcester Boilers, but they need to up their game on Controls with regard to the new Part L regulations as do pretty much all the Boiler manufacturer’s
@@garyhawkins9246 Yes but underfloor only runs at 45c and is mixed at the blender so technically any weather compensator would not drop flow temps enough to effect it and if it did drop to say 55c then hardly any mixing would be required. Multiple zones can still operate in one manifold with independent actuators and separate zone stats
Which is the louder by how much?
ALREADY FLAWED!!!!!!! VIESSMANN 200 Series is the direct competition and comparison!!!
We're thinking of doing a review of the Viessmann 200. Anything you'd like to see in that video Jas?
@@Heatable yes 👏🏼 👍🏼 thank you. And ps. I do love your vids
@@jassinghIG45 Appreciate that! Don't forget to hit the notification button and subscribe if you haven't already.
@@Heatable was there a review of the new 200-W in the end?
I'd love to have that 98% efficiency and 1:17 modulation, but I'm finding little info on it from UK users and retailers - not a single actual review of the new 2021/2022 version.
You need to up your game and explain the pros and cons of each boiler v price and then ask for a preference from the customer. Just quoting a price and a boiler doesn't cut it for a well informed customer. I'd rather have a quality boiler with a higher price but others maybe the price is all.
Thanks David, we'll take note for any upcoming videos. Although, it's important to remember not everyone is as 'well-informed' and sometimes just wants a simple explanation without too much jargon!
@@Heatable Agree less is more in some cases. Just to add to my comment, why not offer two options a lower cost option with say a shorter warranty and basic design verses a more expensive option emphasising the design specs/quality eg 12 year warranty and stainless steel burner and other bells and whistles. Just a thought.
Morning Guys, I am moving in to a 3 bed bungalow and want to upgrade to a combi boiler, there's 10 rads , there's an ensuite bathroom with electric shower and separate bathroom with bath and power shower, currently the boiler is in garage.
I want the best efficient boiler/ hydrogen ready money can buy? Any advice would be much appreciated, kind regards Danny uk
Hey 👋. No problem at all! Based on the information you provided, the best, most efficient, hydrogen-ready boiler you can buy is going to be either the Viessmann 050 or the Viessmann 100. They are both hydrogen-ready and A-rated efficiency. If you choose to buy your boiler installation through Heatable, you'll also get a ten-year guarantee on both these boilers. What's more, if you go for the Viessmann 050, we're offering an energy-saving bundle, where you get a free Google Nest smart thermostat included with your installation. Let us know if we can help with anything else!
@@Heatable thanks Guys much appreciated
Hi Guys, just a question that I can't find an answer to, and that when trying to get an on line quote should be asked when trying to obtain an estimate, is that , is there any conflict replacing a boiler from a standard heating system ie, copper tank set up to a combi, the exsisting pipework size mine being 10mm microbore?? Kind regards Danny
@@TheLegend-nx3mm Hey, thanks for getting in touch again! Microbore will work with a combi boiler, it's just more prone to blocking. If your system is in reasonable health it shouldn't be a problem. P.s. we hope you're using us for an online quote. 😉
@@Heatable absolutely already had a quote from you guys on line. I have been advised a flush is worth considering before a new boiler is fitted, not sure you offer the flushing service though?
Surely both boilers should start @ 15kW, a 10 bed house might need 30kW assuming reasonable insulation. Disappointing that the WB doesn't have a stainless steel heat exchanger.
2-0 to the Deutschlanders.
Totally agree about the instructions, they are really poor and illogical. Don't understand why the wi fi QR code isn't left in the user folder.
I like the sound of the internal parts on the Viessmann, they sound better quality? I have a victorian house with 3 floors. Does this have any bearing on boiler choice, i.e the height that the boiler would be pushing water upstairs ti the top floor? Pump and expansion vessel, does it matter?
Also is it worth installing an inline water softner at installation, does it help to maintain efficiency of the internal parts and heat exchanger. Just thinking of trying to do the best job at installation as possible in regard to boiler life and efficiency.
Does @Heatable also upgrade radiators at the same time too and open therm sensor to the boiler. Apologies for many questions 😉
I think it's only boiler replacement. I asked for a new boiler and a switch from vented to unvented and they wouldn't provide a quote, whereas they quoted for boiler only switch. So my guess is no for replacement rads..
Viessmann every day of the week - BUT I would recommend the 200-W. It is the most advanced and efficient gas boiler sold in the UK! The 100-W is a UK only budget model that isn't sold in Germany.
One other side fact - Viessmann is a family owned business still.
Is the 200-W combi available in the UK?
I don't see it on the Heatable website, nor from any other similar companies.
@@aliasgharkhoyee9501 Yes it is.
@@singlendhot8628 Where? Any online companies that suppy+install it?
@@aliasgharkhoyee9501 Contact a Heat Geek.
@@singlendhot8628 I'm looking for companies that supply and install it, not individual technicians.
All Worcester Bosch boilers since the year 2000 are Hydrogen ready. Why are you saying the 8000 style isn't?
Can you share a source?
@@aliasgharkhoyee9501 WB Website states this for all their 8000 series. Heatable have a preference/bias for the Viessman. Source? they say it in their other videos.
Just arranged to have my old system boiler replaced with a WB 8000 so found this video very interesting. 40mm high? I never realised the WB 8000 was so small :P
What are the different modulation ratios? We have ufh as well as radiators and are looking to stop the boiler cycling too much. Thanks Ray
1:10 on the WB and 3.2kW on the Viessmann for all their outputs.
You probably need a blending valve (you might already have one - better check) on the UFH manifold to allow a lower circulating temperature through the UFH to that of the radiator circuit.
@@da_great_mogul The V200 modulates down to 1.9KW.👍
@@normanboyes4983 correct possibly but I was quoting the 100 model that's being featured in this video.
@@da_great_mogul Yes I understood and do agree, that’s why I qualified my statement as V200.😀👍
Will acidic feed water be an issue on the cast iron Bosch?
Hi John, thanks for your comment! It's actually aluminum in a Worcester Bosch rather than cast iron, so you won't have an issue there.
@@Heatable but even Al does corrode with enough acidity especially together with heat, no? What about cast iron?
@@johnringeling8892 WB use Cast Aluminium with added Silicon in the melt for much improved corrosion resistance. The wall thickness is about 6 + mm but the conductivity is so good that it doesn't matter.
Are there any other good brands that have a stainless steel heat exchanger?
Our other favourite brand that offer a stainless steel heat exchanger, is Alpha. The Alpha E-Tec is a fantastic boiler with a stainless steel heat exchanger at a low price!
@@Heatable thanks, also if I want to replace my single convector radiatiors with double convector radiatiors for the same width and height will my flooring have to be lifted up?
@@AlexN0me11 Hey Alex, no this is unlikely you will need to do this.
@@Heatable thanks
40mm means 4 cm tall? You 40 cm or 400 mm even that still small.
Haha yes it's not 40mm tall that would be a very tiny boiler. The Worcester is 40mm taller than the Viessmann!
I have just had a viessmann 050-w fitted 2 weeks ago, its to high tec for me .There were poor instructions for the home owner, in fact there was'nt any. I had to phone the installer for information I was affraid to touch any thing on the boiler in case it shuts down. I also don't like the use of the app, loose the internet and there's not heating. If it's off you can't put it on and if it's on you can't put it off . Too high tec for me.
Neither, Vaillant only boiler worth considering
Ones a plastic piece of junk, the other is German engineering. Is there really a choice
Assuming you have experience with both Worcester Bosch and Viessmann's?
Obviously you have little experience with boilers with that attitude, there is life beyond German Engineering😊
@@rogerbuckland4214 there both ment to be German, but one uses its brand recognition the other is market leading product, I feel for anybody with a Worcester.
DEFINITELY WORCESTER BOSCH IS BEST
Why?
We're big Worcester Bosch lovers here at Heatable but Viessmann's are equally fantastic boilers.
Worcester Bosch is absolutely no comparison to a viessmann vitodens boiler
@@SalimKhan-gk1fh We wanted to compare the two as these are our best-selling boilers. They both have their own benefits, but we couldn't pick a favourite.
@@Heatable From an engineers point of view viessmann is easily the best boiler and best boiler brand in general obviously Worcester Bosch is more advertised and more well-known but from a quality point of view you cannot beat the viessmann brand.I am glad heatable are promoting them quite well these days I only fit about 10 to 15 a year you must be fitting thousands!?