How To Convert A Heat Only Boiler To A Combi Boiler - Central Heating.

Тәжірибелік нұсқаулар және стиль

Open Vent to Combi conversion. Step by Step guide on converting an open vent heat only central heating boiler to a Combi. Very detailed video.
How to install central heating. Leeds Plumber explains how to convert a central heating system.
Central Heating Design. Changing an open vent heating system to a sealed system with a combi boiler.

Пікірлер: 375

  • @marka4706
    @marka47063 жыл бұрын

    Top quality video its a shame a lot more people in the industry are not willing to help new people like your self.

  • @condensatepro8533

    @condensatepro8533

    3 жыл бұрын

    Not just new but all as everyday is a learning day 👍👍

  • @user-fs8pf2rt9z
    @user-fs8pf2rt9z3 жыл бұрын

    This man is a true legend, definitely the best plumbing KZread channel out there 👍🏻😎

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thank You.

  • @ome4383
    @ome43832 жыл бұрын

    My job is not as a Plumber. But you explained so precisely, that even 4 years child can understand. Thank you.

  • @mp5557600
    @mp55576002 жыл бұрын

    Great informative Video. I used this just to understand how my current Gravity feed system is plumbed!

  • @stephenocallaghan2142
    @stephenocallaghan2142 Жыл бұрын

    Such a useful video Alan - thank you! You make it sound so much more straightforward. It can be so daunting when you look in the airing cupboard and see all those pipes going everywhere!! Will be watching this a good few times!!

  • @maxreed6932
    @maxreed69323 жыл бұрын

    Thank you for this video! I’m an apprentice and always found the carnage of pipes coming from all different directions overwhelming. This was such a clear and simple video to follow and made me feel a lot more confident going into work. Thanks for your help.

  • @AllenHart999

    @AllenHart999

    2 жыл бұрын

    Thanks very much for your comment, please consider subscribing to support the channel 🙂

  • @gedheaton1415
    @gedheaton1415 Жыл бұрын

    Cracking vid and no doubt a massive help to any newbies,I especially like the bit at about 20:16 "there might be a drain off here" followed by a smile that epitomes the saying, "If a picture paints a thousand words" haha. Allen in all honesty your vids and others such as TomKat and the Baxi ones are a great learning tool and I'm sure many people appreciate the time you give up to help others,long may it continue.

  • @jamesparry175
    @jamesparry1753 жыл бұрын

    I'd love to have 25% of you're plumbing knowledge Allan, great video as usual. The detail and effort you go in to is fantastic. Thank you👍👌

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Wow, thanks!

  • @StuHNomadBiker
    @StuHNomadBiker3 жыл бұрын

    Awesome pal, very good video, I've said it before, you're a credit to the industry 👍🏼

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thanks 👍

  • @Smart_fix
    @Smart_fix Жыл бұрын

    You are a legend Allen thank you for sharing your absolute knowledge as new plumber I’ve learnt a lot Million thanks to you and you got all my respect 👍🏼🙂♥️♥️♥️

  • @ChrisFeeney
    @ChrisFeeney3 жыл бұрын

    Great Video Alan, absolute credit to the industry.

  • @AllenHart999

    @AllenHart999

    2 жыл бұрын

    Thanks very much for your comment, please consider subscribing to support the channel 🙂

  • @paulkelly3254
    @paulkelly32543 жыл бұрын

    Excellent video, takes years of experience to know which pipes to leave in, where to cut your new system in. No two systems are the same. Great work Allen again.👍🏻❤️👍🏻

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Paul Kelly Thank you. When we getting our CDI Video 😂

  • @paulkelly3254

    @paulkelly3254

    3 жыл бұрын

    When I get time mate😅

  • @jaycole2592
    @jaycole25922 жыл бұрын

    So helpful, was worried about doing my first conversion. Not any more. Thanks Allan

  • @rayc1503
    @rayc15033 жыл бұрын

    2005 was my 1st conventional to combi conversion. Back then it all looked daunting and yes it was. I wish I had your schematics to help me when I was doing my apprenticeship. Me being over eager drained the petcock at the boiler and started going at the pipes with the cutters. Even though my mentor explained to me for a good few minutes to start upwards and move down. He'd only popped out to get some supplies. Boy was he in for a surprise when he got back. Legend at explaining this and your schematics were absolutely spot on. I'm sure trainees and newly qualified engineers have found your videos useful. I think bbu's and warm air units would be useful for the inexperienced. They used to be 2 other things I used to get very confused about. The more work I carried out on site the more I picked up. Most college's don't explain as well as you did. 👍 P.s seemed to have caused myself an Injury Friday. So had to oversee my apprentice and another level 2 nvq plumber finish it off this weekend. I'm immobile at the moment 😭. Watching some of your older material 🤘

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    I would welcome your knowledge on this channel. If you ever want to help out please get in touch. Thanks so much.

  • @rogerford30
    @rogerford303 жыл бұрын

    I like the sound effects of your heating coming on and of during your video, had to keep checking mine to see if it was on .lol👍

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Ha Ha Cold today. Thanks so much.

  • @megregs7
    @megregs73 жыл бұрын

    Hi Allen, great simplified video.. I've been in the game over 25 years now, done loads of conversions and installs.. mainly doing breakdowns now, have come across lots of different scenarios... I'm new to the channel, but still impressed with how you explain things... I'll be tuning in more often... Old dog new tricks etc...

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thank you so much for the feedback, Everyone is welcome on here as well, If you ever want to share anything just send them in. Thanks.

  • @megregs7

    @megregs7

    3 жыл бұрын

    @@AllenHart999 Hmm..... yes would like to share stuff allen, but so busy at mo, just finding time, will have to start videoing and sharing when possible? The blocked condense video made me chuckle... that is so common in and around London flats at the moment.. where the only place to terminate is in to the double spigot trap under the kitchen sink.. along with the dishwasher and the washing machine... keep up the good work...

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    @@megregs7 Thank you so much, I will look forward to the Videos.

  • @thomasruddy6416
    @thomasruddy64163 жыл бұрын

    Thanks Alan , really helped me out this video, i've done lots of combi swaps but only a few conversions , thanks for simplifying it for me, great help

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thanks very much for your comment, please consider subscribing to support the channel 🙂

  • @jewelahmed6197
    @jewelahmed61973 жыл бұрын

    Hi Allen, just finished your longest video 1.16 hour. Watched this one now. Those videos will help my next combi to system job which I'm going to do in few weeks time. Great man Allen 🙏🙏🙏

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Don’t forget to add a thumbs up and share. Thanks so much for the comment. If need any other videos just ask. Thanks.

  • @jewelahmed6197

    @jewelahmed6197

    3 жыл бұрын

    Thanks great man. First thing I do is thumb up and then start play bottom. Will start sharing from now 👍👍

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Jewel Ahmed Thank you so much.

  • @TheScottelias
    @TheScottelias3 жыл бұрын

    I’m retraining to be a plumber at the moment, with covid it’s all online and a pain to learn anything. Thank you so much for your videos, without your attention to detail and way of simplifying things I’d be screwed. 👍

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thanks very much for your comment, please consider subscribing to support the channel 🙂

  • @agregory2003
    @agregory20033 жыл бұрын

    Awesome video, definitely makes a lot more sense now. Will save this video for when I have to do a full conversion.

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Would you like any other videos? Thanks so much for the comment and watching my channel.

  • @robwoods8160

    @robwoods8160

    3 жыл бұрын

    Well done Allen. Btw Watch out for existing corroded flexible tap connectors. They don't like the the extra pressure!! 🙈

  • @davidpritchard9829
    @davidpritchard98292 жыл бұрын

    Great, clear explanation. I like to be informed as to what is involved in a job. I'm a sparks by trade but obviously need a decent heating engineer to fit a new boiler. You northerners seem to do things differently than down here in Hertfordshire. I've had several quotes and surveys and none of them has been interested in what we require from a new boiler. They've just pushed what they want to fit! It's nice to see an engineer who wants to make their customers happy. Wish you were around this area! I'll keep up the search as I'm sure I will find someone with your pride in a job - I may get lucky and find someone who's moved down from your way!

  • @richardhodgson7443
    @richardhodgson74433 жыл бұрын

    Brilliant video Allen, you are the reason I want to be a gas engineer, so inspiring thank you mate

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Good luck.

  • @themackdaddy6146
    @themackdaddy61463 жыл бұрын

    Alan I just left a job yesterday where I’d done a conversion and the boiler wouldn’t circulate I thought it was sludge in the system and last night after I got home this video popped up on My feed and it was exactly the system I’d just converted I couldn’t believe it. Went back this morning linked two pipes and booom!!! Thanks

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Ha Ha amazing

  • @stoyanstoyanov285
    @stoyanstoyanov28511 ай бұрын

    Thanks to people like you which helps a lot.

  • @turhandereli737
    @turhandereli7373 жыл бұрын

    This is the best explanation I have ever seen. I am not in plumbing business. No understanding about the work before. Was just looking for my house's heating system to get converted from regular to combi boiler. Now, even I understand what will be done in the house. Thank you for your great effort to help people understand things. Keep the good job 👍🏼

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Glad it was helpful!

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thanks very much for your comment, please consider subscribing to support the channel 🙂

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    @@adamjones9537 What do you mean? Thanks

  • @mrproductivity3261

    @mrproductivity3261

    Жыл бұрын

    Does anybody know how many persons is required for these kind of jobs ?

  • @turhandereli737

    @turhandereli737

    Жыл бұрын

    @@mrproductivity3261 I got my heating system changed after a while posting this comment. Gave the job to a local respected company. Only one guy came, worked for 2 days, removed the cold & hot tanks, re-routed the pipes through garage, cut the unnecessary pipes and put the new combi boiler. Only another guy came for an hour to do the electrical work.

  • @kamalaskani2304
    @kamalaskani23043 жыл бұрын

    Brilliant allen i am control engineer from day which I seen your video about boiler I really love your simple and knowledgeable and excellent explanation of this job and l like to continue and learn this business. I really appreciated for you. Thanks.

  • @AllenHart999

    @AllenHart999

    2 жыл бұрын

    Thanks very much for your comment, please consider subscribing to support the channel 🙂

  • @umairrathore
    @umairrathore2 жыл бұрын

    Superbly explained Alan. It answered so many of my questions. Thanks

  • @becauseican151
    @becauseican1513 жыл бұрын

    Hi Thanks for the video, it has helped me a lot and built my confidence massively. I have a house with a very old hot water only boiler. I want the space where the hot water tank is and the loft space freed up for extensions. For this I am opting for a Combi boiler. I am getting the boiler fitted professionally as I am a DIYer and not gas safe registered. The price to convert the pipework to the combi was another £1000. The boiler is remaining in the same place, so the gas pipe can stay where it is, but I now feel confident to re-route the radiator, hot tap water pipes and remove the old system myself. This will save me nearly £1000. Thank you again for this video.

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Hi Dean. How did you get on? Thanks.

  • @danditchett
    @danditchett3 жыл бұрын

    Great video would love the extra video of putting boiler in airing cupboard 👍 top work once again!

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Great suggestion!

  • @rajeshbangera6149
    @rajeshbangera6149 Жыл бұрын

    Thank you Allen for the indepth video. Cheers.

  • @kevinappleyard2821
    @kevinappleyard28213 жыл бұрын

    Absolute top class bloke

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thank You.

  • @abdulmonnan4128
    @abdulmonnan41283 жыл бұрын

    Alan am a gas engineer from birmingham ive been in the trade for 14 yes i love your video your are a great guy

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thank You.

  • @naturewhynn3380
    @naturewhynn33803 жыл бұрын

    Wonderful video mate brilliant very informative and interesting you made a 30 minute video feel like 5 well done Allen 👍🏽

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Nature Whynn Thank You so much.

  • @MekonMindbender
    @MekonMindbender2 жыл бұрын

    I had an old Glow Worm heat only open vent system for years and in 2019 I got rid of it all with an Intergas Xtreme combi. What a huge difference, no 3 way valve to go wrong, cheaper hot water on tap and a great boiler to boot. If you don't have a power shower fitted then this is the way to go.

  • @AllenHart999

    @AllenHart999

    2 жыл бұрын

    Just make sure you have the boiler serviced and the burner seal changed if required, I have heard of a few of the Intergas boilers setting on fire and melting the case. Lots of the old boilers worked like the intergas, Vokera and Worcester along with others had them, Things have moved on a bit from them days though. Thanks.

  • @ryanjones5224
    @ryanjones52243 жыл бұрын

    Outstanding, keep up the great work Allen👍🏻👍🏻👍🏻

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thanks 👍

  • @archieiqbal666
    @archieiqbal6662 жыл бұрын

    YÖÚ HAVE TAUGHT ME MORE FROM THIS VIDEO THAN A SO CALLED TEACHER. THANKYOU TOP MAN

  • @rawveganskyfall
    @rawveganskyfall Жыл бұрын

    Very clear drawing and explanation.

  • @09335043
    @093350433 жыл бұрын

    Nice vid Alan, did one of these conversions the other week. Thanks

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thanks.

  • @davidoshea1536
    @davidoshea15363 жыл бұрын

    Brilliant video Allen, superbly explained. Top dollar 👊🔥🌟

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thank You.

  • @theyorkshirediyguy
    @theyorkshirediyguy3 жыл бұрын

    Awesome video Allen, very helpful. Thanks.

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thanks.

  • @raisapotoroaca4016
    @raisapotoroaca40163 жыл бұрын

    Absolutely brilliant video.Maybe you can do a video about layout pipes when you install a new system .What technique you use when you run the pipes from the boiler to radiators, taps. To be honest once you see this video it feels like you want to jump straight on work because you feel you understood everything but the real struggle starts when you actually do the job cause you have that feeling that you don’t remember anything probably because you get nervous doing it for first time and the pressure is immense but I think in the end is up to us to get over it and keep going no matter what the odds Once again a brilliant video Thank you and be safe

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thanks for watching.

  • @scottc6552
    @scottc6552 Жыл бұрын

    Thank you for this video. Really well explained

  • @eyyubgasimov2204
    @eyyubgasimov2204 Жыл бұрын

    You are awesome, Alan!

  • @lukespencer3510
    @lukespencer35103 жыл бұрын

    Great video, lots of detail and lots of advice Thankyou

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thanks very much for your comment, please consider subscribing to support the channel 🙂

  • @paulross6814
    @paulross68142 жыл бұрын

    Top marks very detailed and patient

  • @MobinC97
    @MobinC973 жыл бұрын

    Cracking video Allen

  • @AllenHart999

    @AllenHart999

    2 жыл бұрын

    Thanks very much for your comment, please consider subscribing to support the channel 🙂

  • @justnoah2386
    @justnoah23863 жыл бұрын

    I’m a spark and loved this great video matey

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thank You

  • @kashiffarooq8560
    @kashiffarooq85603 жыл бұрын

    Great video Allen, very helpful

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Glad it was helpful!

  • @gordoncrowe3507
    @gordoncrowe35073 жыл бұрын

    Being a retired plumber I think you explain that very well well unfortunately today day the young plumbers haven't got a clue how to do a conversion like that for the simple reason is they have been brought up installing combi boilers keep up the good work cheers Gordon

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thank you so much for watching.

  • @pauls826

    @pauls826

    3 жыл бұрын

    Just cut 3 port and join returns simples I’m only 34 still have a few customers with old convential systems still have 2 customers with back boilers there are running sweet as a nut

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Paul Smith You wouldn’t normally join the return. You would cap return and join the flows. Thanks

  • @pauls826

    @pauls826

    3 жыл бұрын

    @@AllenHart999 🤔 think they must do it different round you way all jobs I’ve converted it’s been returns haha suppose it’s the the same the other way

  • @pauls826

    @pauls826

    3 жыл бұрын

    @@AllenHart999 just had a check on google on the return is least resistance and more efficacy for the pump and heating you can put them on the flow side if it’s multizoned with multi pumps

  • @a.c.system9733
    @a.c.system97336 ай бұрын

    Great video Alan I was try to explain how to do it to my apprentice but you did this so much better nothing to add you deserve a big 🍺 many thanks

  • @AllenHart999

    @AllenHart999

    6 ай бұрын

    Thanks for your support

  • @tonywardell3411
    @tonywardell34113 жыл бұрын

    Another top video cheers Alan

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Glad you enjoyed it

  • @abdulghafoor1421
    @abdulghafoor14213 жыл бұрын

    well done Allen very well explained

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thank You.

  • @WeShowMemes537
    @WeShowMemes5372 жыл бұрын

    Very detailed and complete and simple method showed by U, definitely cleared all questions in my mind , u r always helpful,seen so many videos of urs,chairs God bless u

  • @AllenHart999

    @AllenHart999

    2 жыл бұрын

    It's my pleasure

  • @kazim218
    @kazim218 Жыл бұрын

    Great video clearly explained Everything clearly

  • @leonardbalint4930
    @leonardbalint49303 жыл бұрын

    thank you Allen, very informative video

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thank You.

  • @bsingh3431
    @bsingh34312 жыл бұрын

    Nice one alan. Very well explained. Thank you

  • @AllenHart999

    @AllenHart999

    2 жыл бұрын

    Thank You

  • @veronicahart450
    @veronicahart4503 жыл бұрын

    Love your videos Allen

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thanks Mum.

  • @drewerysafc1
    @drewerysafc12 жыл бұрын

    fantastic video really helped me with this

  • @jarekt4122
    @jarekt41223 жыл бұрын

    Absolutely brilliant video 👍👍 nothing wrong with your drawing too😀

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thank You.

  • @fargogemini694
    @fargogemini694 Жыл бұрын

    Come on Alan, he’s our man, if he can’t do it, now one can

  • @khurramshehzad2446
    @khurramshehzad2446 Жыл бұрын

    Perfect I always watch your videos which are brilliant 👏

  • @AllenHart999

    @AllenHart999

    Жыл бұрын

    Thank you 🙏 are you going to installer show this year

  • @DomThePlumber
    @DomThePlumber3 жыл бұрын

    Great video Allen

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Dominic Henley Thanks

  • @TommyBaby2023
    @TommyBaby20232 жыл бұрын

    Great videos Alan thank you 👍

  • @adriatikqypi9356
    @adriatikqypi93563 жыл бұрын

    Great video, and wish more like this are made. Thanks

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    What would you like? Have you subscribed? Thanks

  • @GasmanChris5705
    @GasmanChris57052 жыл бұрын

    Brilliant Alan 👍

  • @AllenHart999

    @AllenHart999

    2 жыл бұрын

    Thank You

  • @wgplumbingheating24hrsserv78
    @wgplumbingheating24hrsserv783 жыл бұрын

    Thank you Alan you are very helpful and God bless you

  • @AllenHart999

    @AllenHart999

    2 жыл бұрын

    Thanks very much for your comment, please consider subscribing to support the channel 🙂

  • @exposethetruth1572
    @exposethetruth15723 жыл бұрын

    Very good video allen

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Expose The Truth Thank You

  • @johnburns4017
    @johnburns40173 жыл бұрын

    I did actually convert a *Heat Only Boiler* to a combi once. That is, converting the _boiler_ to a combi, not rip out a heat only and install a combi. A friend had a large oil boiler of around 60kW. He was renovating but the hot water cylinder was in the way taking up space. So I installed an external plate heat exchanger, 3-way diverter valve, flow switch on the cold mains pipe and on the hot taps a blending valve. In short, the innards of a combi were on the outside of the boiler. It worked very well giving around 25 litres/min of hot water. The large hot water cylinder was not needed at all.

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thanks.

  • @Ragnar8504

    @Ragnar8504

    3 жыл бұрын

    My parents just had their old heating system converted to a combi. The old setup was the exact opposite of what you did and, frankly, slightly bonkers. Mind you, this was installed new in 1998 or 1999! The heart of the system was a 150 l mains pressure gas-fired hot water tank that vented into an existing chimney through the roof. To that they attached a plate heat exchanger and several pumps to run the central heating! They didn't have radiators either, just loops of 15 mm copper pipe running through the walls. The gas bill was always sky-high for a small cottage and the system took ages to heat up from cold. Now all the in-wall heating system is gone and the weird setup has been replaced with a brand-new Vaillant combi. Every heating engineer who saw the old system asked: "May I take pictures for my apprentices? I've never seen anything like this before!"

  • @johnburns4017

    @johnburns4017

    3 жыл бұрын

    @@Ragnar8504 So a hot water cylinder with burner under, as per USA residential or commercial. This is using the hot water cylinder as a thermal store. Common in the USA. Wall heating is fine. It needs to be well insulated when on outside walls otherwise you will just be heating the outside walls. Sounds like this was the case here. Like UFH it is slow to warm up. He may not have had enough 15mm copper in the walls as well.

  • @Ragnar8504

    @Ragnar8504

    3 жыл бұрын

    @@johnburns4017 They were actually using the hot water cylinder as the heat source, which is quite unusual I think. The walls are solid brick, quite thick but not much insulation, so yes, the system was partly heating the outdoors. And no, there wasn't a whole lot of pipe either, most people said it was a miracle the system worked at all.

  • @johnburns4017

    @johnburns4017

    3 жыл бұрын

    @@Ragnar8504 Yes, the fresh water cylinder was a _thermal store._ Nothing wrong with doing that. Just unconventional. As the heat temperature will be low, approx 60C, the temp of the tap water, using UFH or low temp baseboard heating is better. Or even larger radiators. Using a brass pump into a plate heat exchange and smart pump around the heat emitters, they are fine. In the US they do this when using baseboard heating, as gas fired water cylinders are common. They are used here in commercial applications. The last domestic one I recall being sold was by Lennox (US company) or maybe Andrews. With no ferrous in the system many Americans use *fresh* water around the heat emitters, eliminating a pump and plate heat exchanger. I assume in soft water areas. Different regs to here. Although I have never read anything that forbids it in the UK. Maybe I should look harder. ACV make one - a hybrid fresh water unvented cylinder/thermal store. The burner is downward firing with the flue running through the cylinder. The Heatmaster, which has been made for about 20-15 years now. s3.eu-west-1.amazonaws.com/downloads.acv.com/NT_664Y6800_A_HeatMaster_TC_EN.pdf ACV also have the tank in tank Smart Cylinders that have a fresh water unvented cylinder as the inner tank with the outer tank heated by an external boiler. The outer tank has tappings for the flow and return for a heat circuit. Effectively a thermal store arrangement. The inner fresh water tank can be vented. A diagram is here: s3.eu-west-1.amazonaws.com/downloads.acv.com/NT_A1005738-661Y1700_E_Smart_SL-SLEW_EN.pdf

  • @nicklion4595
    @nicklion45959 ай бұрын

    This helped me massively.

  • @AllenHart999

    @AllenHart999

    9 ай бұрын

    Happy to help.

  • @SD-Plumbing-Heating
    @SD-Plumbing-Heating3 жыл бұрын

    Another brilliant video Allen. If someone cannot follow that, they probably need to be doing something else 👍🏾

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Hi Stephen. Happy New Year and Thanks.

  • @plumbdog1964
    @plumbdog19643 жыл бұрын

    Excellent video mate

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Many thanks!

  • @paulrossiter9567
    @paulrossiter95673 жыл бұрын

    Quality 👏👏👏 good advise there Alan cheers.

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Glad you enjoyed it

  • @carlbarlow3074
    @carlbarlow30742 жыл бұрын

    Great video thanks

  • @billyoneputt1839
    @billyoneputt18393 жыл бұрын

    Great videos Allen I’ve lost count of the jobs I’ve been to over 20 years of customers having combi conversions and not told about delta temp rises. Also leaks due to the extra pressure, especially pipes in concrete floors.

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    I might do a video on that. Thanks.

  • @billyoneputt1839

    @billyoneputt1839

    3 жыл бұрын

    @@AllenHart999 24kw combi fitted in the summer. 40° hot water in the winter if they’re lucky. Usually have large spigot taps to top it off 🤷🏼‍♂️

  • @aliatas6647
    @aliatas66473 жыл бұрын

    Many thanks for sharing your knowledge👍🏻👍🏻😁

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    My pleasure!

  • @muradkhan6787
    @muradkhan67872 жыл бұрын

    Excellent stuff 👍👍👍👍👏

  • @AllenHart999

    @AllenHart999

    2 жыл бұрын

    Thanks very much for your comment, please consider subscribing to support the channel 🙂

  • @waynebailey8954
    @waynebailey89542 жыл бұрын

    Very helpful thank you very much

  • @Get0ffMyBike
    @Get0ffMyBike3 жыл бұрын

    Very informative - thanks.

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Glad it was helpful!

  • @nisarmairban9835
    @nisarmairban98353 жыл бұрын

    Brilliant video thanks

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thank You.

  • @sken1232
    @sken12325 ай бұрын

    Many thanks mate!!

  • @sandman9301
    @sandman93013 жыл бұрын

    Thanks Allen. Ur a top man mate

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Glad to help

  • @jasongittoes7299
    @jasongittoes72993 жыл бұрын

    Many thanks very easy to understand many thanks

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Hi Jason. Thank you for watching.

  • @gavinsweeting7483
    @gavinsweeting74833 жыл бұрын

    Awesome video I understand it even better now after you explained it would u please do a similar video with boiler going in airing cupboard sometimes the last tee on return confuses me so end up capping it off inceling above boiler if you have time 👍

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    I will try. Thanks

  • @ashokrawal3820
    @ashokrawal38203 жыл бұрын

    Great informative video Thank you very much sir

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Most welcome

  • @marvasika2964
    @marvasika29643 жыл бұрын

    Amazing Vid!! Thank you

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Glad you liked it!

  • @a-wahhabchaudhry2043
    @a-wahhabchaudhry20433 жыл бұрын

    Really good video, Thanks. If you can do a video on vertical flue install, how to do it on the roof and clip it and connect back to boiler that would be amazing. Thanks

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Ok will do

  • @paulclarke3274
    @paulclarke32743 жыл бұрын

    I’m astonished, that someone actually paid for that shower pump installation!

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thanks very much for your comment, please consider subscribing to support the channel 🙂

  • @TheDickPuller
    @TheDickPuller3 жыл бұрын

    Great video Allen & explained very well. Perhaps you should’ve pointed out for the hard of thinking; a Combi boiler is a sealed system & can operate >2Bar pressure. A lot of Central Heating Systems, pipework & radiators, will be unable to cope with the additional pressure & will leak. These issues can be addressed with certain Combi boilers or Plate Heat Exchangers. Thanks me later, kind regards Dick Puller👍👍

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    I will look at doing this in the future. How do you feel about been a guest on my channel? I could come to you and do a video or you could send me some in on WhatsApp 07725 692699 Thanks.

  • @Benzknees

    @Benzknees

    3 жыл бұрын

    Why would an old central heating system using the same rads & copper/plastic tubing as a new one be any more susceptible to the pressure?

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    @@Benzknees That,s a great question. The reason is the old boiler was tank fed with very low pressure. The new boiler could be anywhere up to 3 bar. So there is a chance the system could leak. Thanks.

  • @Benzknees

    @Benzknees

    3 жыл бұрын

    @@AllenHart999 - Thanks, but I’m still a bit unclear. Afaik there’s no special high pressure domestic rads or pipe fittings, so nothing changes by, say, renewing them. Surely it’s only if an existing rad or fitting is faulty would the extra pressure make any difference? And then you’d just replace, say, the one rad that springs a leak?

  • @TheDickPuller

    @TheDickPuller

    3 жыл бұрын

    @@AllenHart999 thanks for your kind invitation Allen, however, I don’t do personal appearances without an undisclosed appearance fee😎😎😎😎😎👍👍👍👍👍

  • @1Monaghan
    @1Monaghan3 жыл бұрын

    This is amazing Allen. Thank you. Question about flues. What happens if you take the old boiler off and fit the combi and the flue holes don’t match up or is slightly off? How do Core when there is nothing to grip and how do you sort the walls. Once you core a flue how do you normally seal it inside and out? Do you use just premix cement? How do you seal a flue travelling through a stud wall with plasterboard? What happens if you take a flue through a roof do you get a roofer to sort this or can you do it? Do you have any videos on combi flue installations and sealing properly? Flue installation and making good seems to send the FEAR into everyone including me.

  • @1Monaghan

    @1Monaghan

    3 жыл бұрын

    I’ve read all the regs on flue positioning and you can always refer to manufacturers instructions but the actually physically installing one I’ve never seen done from start to finish. Like cutting it to size and making sure the inner flue is sealed etc.

  • @manjsingh6500
    @manjsingh65003 жыл бұрын

    Thank you 😊👍.

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thank You

  • @martynhurst3609
    @martynhurst36092 жыл бұрын

    Well done brilliant

  • @AllenHart999

    @AllenHart999

    2 жыл бұрын

    Thanks very much for your comment, please consider subscribing to support the channel 🙂

  • @condensatepro8533
    @condensatepro85333 жыл бұрын

    another great informative video Allen 👍 A little tip that we found that helped us to not have callbacks to leaks on at all hour that were down to existing pipework/fitting/ Valves 😫😫 Fill the system up to around 2.2 bar then heat test, this finds 99% of problems so you can sort and explain to the customer, once that is tested set pressure to MIs

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thanks for the info!

  • @mozaman6855
    @mozaman68552 жыл бұрын

    Nice allen

  • @user-mu7dc8mj1e
    @user-mu7dc8mj1e Жыл бұрын

    Thank you very much Allan it has been most informative. Just a thought could you revert back to the immersion using it as a separate system to the combi.

  • @callumteevan9268
    @callumteevan92683 жыл бұрын

    I’m an apprentice so I don’t know everything, and fair play to the fella I work with he tries to teach me as much as possible, I understand doing these types of conversions at work, But I don’t understand when we do back boiler conversions. Is it the same? I also don’t understand how you can have a 4 pipe and a 2 pipe back boiler. Back boiler conversions really confuse me. Is the any chance you could do a video on that? Thanks, nice and very informative video Allen!

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    I will do one soon. Thanks.

  • @pauls826

    @pauls826

    3 жыл бұрын

    4 pipe back boilers are just separate flow and returns for the cyl and the heating so you basically fuck the cyl ones off and use the heating ones tell you what blew my mind when I came across a 4 pipe cylinder with two pumps I was like whattttttt

  • @paulsteventon9295

    @paulsteventon9295

    3 жыл бұрын

    Brilliant video Alan you should be a teacher . You are a credit👍👍👍

  • @Mr80sam
    @Mr80sam3 жыл бұрын

    Really useful video, Allen, thanks for sharing your knowledge.

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Thank you for taking the time to watch.

  • @dilanhassan5831
    @dilanhassan58313 жыл бұрын

    very helpful video, you said you leave the cold capped in the airing cupboard, where do you connect the cold mains to the cold outlets that were fed from the tank? i thought this was done in the loft by just bridging where the tank was. also when you connect to your cold in the utility room, is that you giving the boiler a cold mains feed in?

  • @garstangterrier501
    @garstangterrier5013 жыл бұрын

    Thank you Allen best video on combi conversions I have seen. Your a star! If you wanted to add multizone heating with 2 port valves would you split the flow at the airing cupboard and keep the bypass from the y-plan?

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    I would update to an splan plus. Thanks.

  • @josephshaw6949
    @josephshaw694910 ай бұрын

    Thanks Allen great video very helpful .If you was putting the new combi in the loft and bought the flow down and connected on to the flow that you have already joined and the combi return to the return that you have capped .Whats the best thing to do with the old primarys cut back and link join together ?Thanks Joe

  • @AllenHart999

    @AllenHart999

    8 ай бұрын

    Always cut back where possible. Thanks.

  • @adroitaddy5215
    @adroitaddy52153 жыл бұрын

    What a great video to watch ?A big thanks to you Allen ,great man ,its very very useful for me as I'm trying to be a gas engineer , made a lot of sense ,you explained it in a best way possible ,Thanks again, A request to upload a video regarding Regulations part what a best way to deal with it for an ACS exam ?

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    Will definitely look at doing that video for you, Keep watching. Thanks for the comment.

  • @adroitaddy5215

    @adroitaddy5215

    3 жыл бұрын

    @@AllenHart999 I watch your channel regularly ,I hope that video will be in your channel soon ,Goodman 👍

  • @AllenHart999

    @AllenHart999

    3 жыл бұрын

    @@adroitaddy5215 My next video is how to quote for a new boiler. Thanks.

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