that bit.
ACV / Vitodens 333 or unvented + system boiler?
- Thread starter Dre
- Start date
that bit.
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B
BigBurner
You have had some drivel from others for sure. Take no notice of some of these guys. They generally only fit single types and makes of boilers and have only ever done domestic. They are all hands on and few can design a system properly giving the optimum solution for the customer - with many it is mainly arm-waving and spattered with comments like, "we have always done it that way". Look at this thread. They are quick to castigate, but give nothing positive whatsoever to offer a cost effective solution for your needs. Nothing positive only negative. The Mod should have a few words with them.
What I am giving you is based on hard experience. I have had many jobs having two combis fitted. They work very well.
I gave you simple ball park figures of water flow usage, which means you will need a very large expensive cylinder. Instantly heated DHW is the only way for you, given what you put forward.
BTW, the Ethos and Broag are quality Dutch makes. Broag are a part of Remeha, who have had a large commercial outfit in the UK and have done for a long time.
B
BigBurner
Obsession? They are best price performance boiler available now. That may change in a few months. Their control system is far superior to the Vaillants and W-B boilers many here tout.
I looked at your installations on your web site. I am not impressed with the quality. Far too many elbows and little use of a bender. Professionals bend pipes. It eliminates water noises and improves flow meaning lower pumps speeds - lower electricity usage. ....and looks better.
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I agree about the merits of elbows versus pulled bends, but like most, we select the most appropriate for the situation. If there is limited space, fittings are the only practical solution.
In commercial plumbing, using threaded steel barrel, fittings are more commonly employed than bends, for obvious reasons.
I would disagree that the control system on a Broag is the best. I think that Vaillant have led the way in domestic heating controls for some time, if not in ease of use, certainly in terms of functionality.
We fit the Broag as a good budget product, because that is what it is. You seem to think it is the answer to everyone's problems, and that is not what it is.
Linking two combis' hot water outlets together is not generally condoned by manufacturers.
A few months ago Atmos and Intergas were the best boilers available, according to you.
In contrast, I can't help noticing that most of the regular posting heating professionals (myself included) have remained far more consistent in our recommendations.
If you want to keep changing your mind, an internet forum is surely not the best place to do it. If anyone wants to check your voracity they only have to click your username and read the Drivel, or click your alter ego, Water Systems for the archive drivellings. You blow with the wind, the only consistency is the patronising way you describe the real professionals.
In commercial plumbing, using threaded steel barrel, fittings are more commonly employed than bends, for obvious reasons.
I would disagree that the control system on a Broag is the best. I think that Vaillant have led the way in domestic heating controls for some time, if not in ease of use, certainly in terms of functionality.
We fit the Broag as a good budget product, because that is what it is. You seem to think it is the answer to everyone's problems, and that is not what it is.
Linking two combis' hot water outlets together is not generally condoned by manufacturers.
A few months ago Atmos and Intergas were the best boilers available, according to you.
In contrast, I can't help noticing that most of the regular posting heating professionals (myself included) have remained far more consistent in our recommendations.
If you want to keep changing your mind, an internet forum is surely not the best place to do it. If anyone wants to check your voracity they only have to click your username and read the Drivel, or click your alter ego, Water Systems for the archive drivellings. You blow with the wind, the only consistency is the patronising way you describe the real professionals.
B
BigBurner
The Broag is OpenTherm and not proprietary. It is a superior control system. I know control.
Budget in price but higher in quality. Price/Performance is hard to beat, until another comes along.
W-B once sent me a diagram of how to do it. I have done it many times and it works. Join outlets on baths and heavy use appliances only.
There is nothing in their instructions thats say you cannot join outlets to improve flowrates.
They still are, but in price/performance Broag right now have it.
Atmos Intergas combis are brilliantly simple with OpenTherm weather compensated control. The finest designed domestic boiler around. However not readily available.
Are they getting a good mark up on certain brands? Probably. And it shows the stuck in the mud attitude of many, unable to find out what more advanced products there are on the market. Some still shout about W-B. I wouldn't touch them with barge pole as the range is 5 years out of date, with an appalling control system.
<snip the rest as it is drivel indeed>
The only hard experience you have dr drivel is hitting the keyboard whilst googling manufacturers websites
ATAG are the best and most reliable Dutch boiler. Letting yourself look bad again drivel
forget the rubbish that some others are putting up and look at these
http://www.rinnaiuk.com/
you need to look at the twinflow sys.yes it is a rebadged boiler with some subtle differences,the water heater is in a class of its own and will surpass all the others in performance if your incoming water main can supply it correctly
http://www.rinnaiuk.com/
you need to look at the twinflow sys.yes it is a rebadged boiler with some subtle differences,the water heater is in a class of its own and will surpass all the others in performance if your incoming water main can supply it correctly
So what is new here?
You have an Atag boiler and a Rinnai water heater.
All they seem to have done is built in the changeover flow switch, the same system which they have been advocating we cobble up for some years when using a domestic meter.
I can't see why anyone would buy Twinflow when we could all match Rinnai with whatever we want. We fit them with Johnson and Starley warm air units.
If they imported their outdoor gas combi, then I would be sitting up and listening. But twinflow - what is the point? There are better products for large houses. Just remind me how you are going to run two baths with this (assuming as they imply, you don't add any addtional storage)?
You have an Atag boiler and a Rinnai water heater.
All they seem to have done is built in the changeover flow switch, the same system which they have been advocating we cobble up for some years when using a domestic meter.
I can't see why anyone would buy Twinflow when we could all match Rinnai with whatever we want. We fit them with Johnson and Starley warm air units.
If they imported their outdoor gas combi, then I would be sitting up and listening. But twinflow - what is the point? There are better products for large houses. Just remind me how you are going to run two baths with this (assuming as they imply, you don't add any addtional storage)?
B
BigBurner
I get monkeys like you to do what I say. They do don't decide. Like you.
B
BigBurner
I have used Rinnais in the past and they are the ideal solution in many cases. Where there is an existing good condensing boiler these make sense. They are great for body jet showers and are super reliable and the existing boiler can be adapted to run CH only. I have fitted the outside units, to save space inside when bathrooms are extended and the cylinder cupboard disappears. Just have a simple flow switch on the cold feed to the Rinnai to switch out the CH only boiler to keep gas consumption with a U6.
They can give high flowrates, but are curtailed in that the UK models are non-condensing, so use a lot more gas.
The Ethos 54C combi gives high flowrates and also does the CH as well. Just using the Ethos for DHW makes economic sense in installation and running costs - being a condensing boiler.
The Ethos fits the bill very well and copes with a U6 meter as well, with capacity to run a hob.
Now the Japanese Takagi condensing multi-point would be very welcome here. I wish they imported it. Just fits inside a U6 meters capacity. It can also do the CH - in the instructions - many in the USA using it as we use a combi.
Yep and an external gas combi would be very welcome in the UK too.
I can't see The Rinnai Twinflow selling well when the Ethos 54C is around.
B
BigBurner
What are yours?
B
BigBurner
The Rinnai water heater is not in a class of its own in flowrate - look at an Ethos 54C combi. It is in a class of its own in quality though.
i asked you 1st
politicians and bulshittters answer questions with questions.
nvq3 acs 10 years service and repair experience. to refer to rgi's as mon keys is just plain insulting, especially coming from a salesman.
politicians and bulshittters answer questions with questions.
nvq3 acs 10 years service and repair experience. to refer to rgi's as mon keys is just plain insulting, especially coming from a salesman.
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