I've been doing service and repair for 14 years, but you make me feel like an apprentice. I'm so impressed by this. What a great solution and so much simpler.

Your a bloody good plumber they are so hard to find. I wish everyone had this pride and skill set.

An absolute expert in your field and an artist. If ever I am in a position to redo mine, I know who I'm gonna call.

You do amazing work, your boiler piping deserves to be in an art gallery

Not only are your installation skills epic! 👌 but you explain your theory exceptionally! You put training centre tutors to shame, some who even have 40 years experience cant explain as thoroughly as you. Very well done! 👍👍

Two words.... Absolute Genius!!!! A little part of me was thinking high temp heat pump.

'' WOW '' your knowledge and expertise ,skill and finished work is second to none . a pleasure to watch .⭐⭐⭐⭐⭐

Admire the pipe work and how cleanly everything is laid out. You should do a video on how to determine if the plumbing/heating professional you need to hire actually knows what they are doing... What questions can be asked of them, and what answers are to be expected, sort of.. Any potential red flags, etc...

Sublime! Love watching you work. Nice job Szymon. Don't forget we're on that course on Monday, see you there...

Wow. All i can say is awesome, we don't have architecture like this where I live, It would be exciting to have a project like this. great video!

Great video, it all looks so neat now,bet you had a happy customer

Beautiful craftsmanship.

This is a great find with upcoming renovations. Thank you for sharing and hats off to great craftsmanship in your work.

The aesthetic of the pipework is so good. Seeing these videos is actually making me a pain in the neck on a renovation. I want to know they can it this neatly!

I love xclusive boilers. One of my favourite boilers to fit. I fit intergas all the time and I don't think anything comes close to them. Definitely going to do this type of install on my next unvented cylinder system.

love your program, have been retired for some time but spent many years working for Honeywell and with the proper controls there is more than one way to get the job done it only takes money. I like your thought process.

A true artisan at work! A joy to watch someone who takes pride in their work and has the knowledge to back it all up. Your videos are superb and very informative and easy to follow for the lay person. Keep it up!

It's brilliant how you set up the heating and water systems. It definitely saves on gas and makes a really efficient system. Great job

Very clever indeed . Great job .

By far the best I have seen on these channels. wish I had the knowledge you do!

Your knowledge is great and your pipe work is awesome!! Thank you for doing the video!

Another factor that occurs to me is that it is vital that instructions are left as to how the system works, and how it should be maintained. Many service engineers do not come across these systems and will not know where to start. It's not " yer average" install. It's far better than that and it needs protecting and maintaining properly for all the right reasons.

Another quality job with an in-depth explanation 👏

I guessed 29kw. So close. I install ATAG boilers with their own DHWP valves. Thinking of giving intergas a go. Great job on the install

Brilliant video, very impressed, I love to learn from others and need to maybe think about my future set ups. 👍🙏🏼 keep the videos coming. Thanks

Fair play another cracking video! Not duprised by boiler size or cylinder size only because I've recently done the Kimbo hydronics course and he was singing the praises of HWPR... I'm looking forward to installing one!

That’s a brilliant video, I’m buying an large old Georgian house that needs some work and CH costs have been a huge concern. But this is very useful.

I thought exactly that but 30kw boiler and 300 litre cylinder. It’s amazing how many properties have oversized boilers and undersized rads & pipework

I love this guy, even were he to be wrong, he would make it right. I put your video's on LinkedIn where I live and work

The owners must be pleased with your conversion. I bet their gas bill is cut in half now!

I lived in Esher for 10 years, lovely place. We had 1 boiler for 1500 Sq meters + 2 Swimming pools. It was a 250,000 BTU Oil boiler. Your pipework by the way is pure artistry.

Fantastic workmanship .you don’t see a lot of people these days take pride in there work .when I win the lottery I will give you a call to replace my heating system .keep the good work up .great videos only found you yesterday.

Just another piece of art work. The pipework the simplicity, the knowledge is just picasso. Any chance for a drawing of the old system and how u managed to alter all that pipework at different locations. Much appreciated

Constantly bringing the big content SC 👍🏽

Great work, always watching out for your videos, pipeworj is amazing mate

Close miss, i had it at 30 kw, hats off always a pleasure to watch your videos. many thanks.

Another great vid thanks very much for sharing!!

Great video mate. You answered a question I've been meaning to look up with regard to a 3 port priority valve on unvented. Recently installed an Atag on PDHW and their instructions say to add a two port as well as the 3 port diverter valve they supplied. It didn't make sense to me so I used a NO 2 port instead on the heating side. To my mind a 3 port diverter should satisfy the regulations. Nice to see it done in the real world.

Excellent video top quality installation well done 👍

Excellent..Your professional knowledge of ur craft is akin to a rocket scientist knowing his. Thank u for ur expert knowledge..

🤔don't understand anything technical...but I just subscribed😁 Because you seem to know your stuff extremely well. I need people like you in my life!

Have you ever considered designing plans with a layer accumulating cylinder that does instant hot water through a plate heat exchanger that uses the heating hot water in the cylinder? One of these layered heating water cylinders is the Vaillant allSTOR and the instant hot water module is sold separately. P.S. Love the way you work and describe functionality.

Great video, your right traditional Y and S plan systems are out the window..... Will be interesting to see how the industry as a whole adjusts to the new regulations!?

This guy is a wizard!

This channel keeps getting better and better, good on you man! What was the coil rating on the cylinder?

Good work. Complete supporter of PDHW Systems 🙂 Don't understand why additional 2 Port Valves are required, other than crazy U.K Regs ! To my knowledge, it's only the UK that request them. I'm stopping to fit them on my PDHW jobs. Like your job, the Sensor and boiler etc will prevent overheating. Not to mention that permanently open motorised valves can fail due to mechanical faults

What a good surprise to see a house I saw before :) another masterpiece installation.

You have got rid of so much crap out of that job well done 👍👍

Absolutely amazing to see and watch the end result. You are an expert at this. Please move to North Devon, the local plumbers have just discovered indoor heating that doesn’t involve cow manure. We need you and the likes here desperately. Keep up the great work! Would love to see anything you do with renewables, such as SunAmp etc.

Could we have pipe bending tutorials please. Offsets, Pass overs and semi passover. Your pipe work looks amazing and your system installs seem to be designed for maximum efficiency 👍 Would you go through how you go about laying out your pipe work please.

The boiler in our cabin at Center Parcs was a combi but wired up like a conventional boiler, found that out when I turned off the central heating (as we did not need it) and no hot water! Was a Worcester of some description I believe.

great job looks very well 👍

Great video. It’s surprising how many boilers are oversized. I’m often surprised how small boilers actually need to be when sized properly. You are a credit to the trade 👍🏻

If you could only (as a side business) set up a training school the whole country would be better off. Our 2020 London plumbers thought they could get away without lagging the pipes, they also didn't use the right clips to support the pipes (several were folded sandpaper screwed around the pipe!!). Post lockdown I had to remove all the oversize skirting boards, remake them as they started to fail after 6 months, then lag all the pipes & instal supports every 1.5m. Your channel is a great showcase of thoughtful professionalism, something that seems very rare today.

Great vid and information on thought process/know-how. Pipe work serblime!

Man your knowledge makes me feel like an apprentice again lol, I love your videos and your installs. I thought you would of at least fitted two boilers. Great video thanks.

Beautiful pipe work mate

My first thought would be (2) boilers 1 for perimeter heating 1 for interior zones. that said the zones can be oriented north and south. my thinking on perimeter heating is here in the north east US you can have a buffer for the low Temps and that boiler can have controls for out door temperature reset 1 to 1:5 loop temp. based on out door temp and wind chill. Our weather in the NE can be extremely cold and windy. the interior boiler can handle the domestic hot water and lower interior loads.

Congratulations, a real pleasure to watch a competent professional at work. There are not many about. That original install was a real lash up. My guesses were 32KW boiler and 250 Litre unvented cylinder (but did not know how many occupants).😉 It would be good if Intergas offered a PHW diverter option in the boiler (like Viessmann) keep the wiring and plumbing simpler. Nice house too - are the owners inclined to ‘up radiator’? You have not only reduced their gas/electric consumption but also their annual servicing costs as well as dramatically reducing points or ‘nodes of failure’. Excellent - a bit of heating design porn.😉

It's like going back 25 plus years ago when we use to wire up pdhw , who would of thought it would make a comeback

Just had a system installed with weather compensation. No unit required outside. Thermostat looks up the weather on the internet. Vaillant boiler.

Would like to be your apprentice! Great work and thank you for sharing your knowledge!

great video!

It's a thing of effiency and beauty.

Thanks!

Nice job repairing the roof. Most folk would have to get the roofers in.

Good job.thanks for your efforts and sharing your experience ..I guessed that you'd fit a combination boiler.. around 35 kw I thought ..

Fantastic neat pipework!! Shame it has to be hidden with lagging. Great job again. Interested to know how there comfort levels are and energy consumption compares.

Thats superb

my guess was one 30kw boiler. a lot of the installs i do now are sized for the hot water tank and not the house. 115 000 btu is the smallest we install for recovery on the domestic hot water. beautiful install! i should try bending on one of my next jobs.

As my 2 bed surrey bungalow with reasonable insulation has an 18 kW boiler amazed this massive poorly insulated surrey pile manages with 24 even more so with the poor radiators and what must be a massive heat loss though that huge hall skylightand what appears to be an uninsulated loft. Great to see those joints, all should use them, they may be pricier but our roof was set on fire by our engineer using end feed (Surrey Fire Brigade were great, put it out and stackedall the tiles so minimal damage) and a few National Trust properties have been destroyed.

I have had this type of hot water system for 20 years. First one was Viessman. Now Vaillant.

Really enjoy the videos. I’m wondering what the advantages of hot water storage vs. a tankless hot water system are? (In general)

I spoke to a g3 assessor that said wiring the power to the boiler through the cylinder high limit is the 'preffered' method as there is a small but still possible chance that in time, a fault with the valve body or synchron motor can prevent the valve from fully closing, so an overheat fault will cut the source. Great video and install as usual!

Must be great having all that space to work in, for a change.

Superb pipework , 12mm plywood backboard? , you are credit to the industry , did you agree a price with the customer first? , I learned the hard way never start a job before contract signed , cheers Steve

Well thought out and a very neat job.Shame more people don't have the expertise to truly consider the u values of the properties they install into.Going big is not always best. The lazy man's option.

Fantastic install. Could you make use of the flue recovery system on the boiler by passing the cold mains through it into the cylinder

I wasn’t that far out on the kw. I guessed about 24. But I didn’t guess that you would do the hot water like that. Another quality install. Really lovely work. Not just in terms of the actual install, but the thought process behind it and the attention to detail of the system design. 👍🏻👍🏻 Great point at the end about 55c flow going forward and how it’s gonna effect dhw. I bet a lot of manufacturers are scrambling right now to bring out boilers that can accept separated ch/dhw switched lives with different flow temps for both. Hard to see how we are going to achieve that in the short term using a lot of the current heat only boilers.

Amazing

Great video and nice thorough work. In regards to running the heating system at 55deg could this still be controlled by S plan providing that both valves are not allowed to open at the same time? The joule Samsung heat pump uses 2 port valves to control the system. I agree with you though that the 3 port diverted valve is the neatest option. Are there any air source heat pumps which you like?

The only reason I can think of to have the separate system would have been if at some point the towel rails were off the hot water and not the primaries back in the day and they didn't want to risk galvanic corrosion. 8 mins in I think I'd be on two 35kw or one 70kw. At that size it would be over the limit and need automatic fill and be classed as a commercial installation though. Edit: So it would seem the towel rails were configured like that at some point, it's a shame to see an old set up like that though well thought out at the time massively over sized for today's standards, though modulation wasn't common place in domestic until Combi's post Y2K. This is why heat loss calcs are so important, or if you over size a system that it has the ability to modulate right the way down. Gorgeous pipework, and your control setups are the same as what we used to do for Viessmann and now Vaillant system boilers. It's just more cost efficient.

Great job wow 🥃☘️💚👍

The usual reason for finding a rogue radiator piped up to hot water goes back to the days of solid fuel when the rad was used as a heat sink before the days of thermostats. That's just a guess, but it's my guess😁

Top video 👊🔥

Your a genius in the plumbing industry ...you really need to get yourself an apprentice and past your knowledge on ! Don't let it go to waste ...👍

Lovely install. Far to neat to be hidden away 😂

Cracking vid. 👍👍

Love your videos! How many radiators on that system? I have a customer that has been quoted for a 50kw system boiler to supply 30 radiators and a 200ltr unvented cylinder. 50kw seems insanely high to me! Not been to the job yet

Surely one of those new fangled heat pumps would have been a good replacement 🤣

I take my hat off to you , I wouldn't know where to start !

Do like your crusade for weather compensation, frustrates me that so few plumbers seem to get why it matters when gas is 9p a unit plus now.

Magnificent house. Great work as always

This set-up looks remarkably like my house (370m2, up to 500 years old in parts): 3 boilers, 3 heat zones, cylinder, masses of relays, looks incredibly complicated and costs a fortune to run; installed about 25 years ago. I've suspected for some time it's in need of modernisation & rationalisation. After watching your video I'm even more sure of that. Finding someone with your skills to design and implement is the challenge.

I have a similarity large property to upgrade so this video was very relevant. In my case the plumbing needs renewal throughout, plus new underfloor heating on the ground floor. However I do have a 24.85kWp ground solar + 2xPowerwalls so energy is cheap and abundant. In such a case would you go for central system or just feed a cold water line to each of the four bathrooms and use Heat batteries at each local. Increase in equipment costs but saving in pipework and complexity? Heating to radiators is from a biomass that could be retained or removed. Grateful for your thoughts.

Great job and very interesting watch 👍 Did you have any balancing issues working with the boiler pump only?

Enjoying how different and seemingly intricate your heating installations are over in the UK/EU. The emphasis on efficiency contrasts a fair bit from typical installations around here. It depends on the age of the construction but most homes around here have hot water baseboard heat and typically we have 80-90C water running through those. Do homes there not get dramatically cold days with high wind? I'd be curious to see how such (from my perspective anyway) lukewarm water would be able to handle -20c with wind chills. I'm not familiar with where you are though so maybe the weather never really gets there.

What a mess to inherit! Great work but I'm really surprised you didn't go with a Viessmann - the higher end boilers use a cylinder thermostat input direct from the factory! Really hoping to see an episode with you installing German tech someday!

Great work as usual, I'd have thought given the size, age and cleanliness of CH system it might've been a candidate for plate separation?

nice job have done similar