How to Change a Thermostatic Radiator Valve Without Draining The System
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- čas přidán 1. 04. 2022
- Welcome to my latest plumbing tips video where i will be showing you how to replace a TRV without draining the heating system. I will show you step by step how easy it is to change a radiator valve. If you like the content leave a like and please subscribe for more content like this as I've got a lot more to come and there will be something that will help you out. Theres other plumbing tutorials on my channel to check out!
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Thermostatic Radiator Valve(TRV) - amzn.to/3iRryXo
Tank Bungs (Radiator Valve Change Kit) - amzn.to/370cgwP
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Excellent, clear explanation. No nonsense, no annoying background music, straight-talking. 10/10
Sums up exactly what I try to make my channel about!
@@TheDIYGuy1 Job, done.
NOT JUST CLEAR .... I had it in mind assemblies like that had to be connected DRY
Guess they don't
Your arms look like they have jaundice
Yeah, this channel is the real deal
As soon as you went into the loft where the spiders live, your video convinced me to pay someone to fit the four valves. So thank you for that clarity.
🤣
Bbb
I dont even have a loft so i did the opposite if what he told me not too, got my hammer out and started to hit the shit out of it
😂😂😂😂😂
Spiders? Scared of spiders. Damn imagine having to weld underwater in the northsea oil rigs
After 24 hours of trying to fit a new radiator and then getting leaks galore once re-pressurising the system your video is the best out of dozens I've watched and allowed me to do a great install. The two things that saved me - not to use tape where there is an olive and to wind the tape around 10-12 times where it is needed. I was just doing it once or twice. Now I'm a happy bunny!
Hi mate , I’m currently putting myself through night school doing level 2 plumbing , I’m 46 years old and decided to have a complete career change , I understand college has to do it a certain way but I get frustrated things don’t sink in and feel I’m not learning but just want to thank you for your videos as you explain step by step as I can see you doing it 👍
Brilliant. Good luck with it and I’m glad to help you where I can. Break everything down in your learning into small steps/sections and you’ll be fine
In all my years (65) I've never seen those bungs. They would have saved me hours of DIY over the years!
👍 always time
Hey just a quick one ...I'm not a plumber by trade and i shoved a cork in there....how come you didn't bung up the hole too ??
All cold feeds to the heating system should have a shut off valve , all you need now is a blank cap on the expansion
5:57 a good tip is to count the number of turns used to shut the lockshield so the system remains balanced once opened again.
Good tip 👍
Your also relying on the system being balanced in the first place. Not many tradesmen have the "time" nowadays.
And also lockshield's are not all the same some a slight turn will open them other multiple turns open then which allow you to adjust the flow. So better to balance the rads correctly when you have finished changing the valve. Another tip is don't buy cheap locksheilds or TRV,'s
Agreed, I'm very surprised this wasn't mentioned
Very scientific.
Just bought my first house and one of the radiator valves started leaking. This video saved my ass!!!! Thanks so much :D
Great video, just one bit of advice. The heating system has hopefully been balanced by the installation engineer as part of the system commissioning. When closing each lock-shield valve on the system before exchanging the wheel-head control valve to a thermostatic valve, count the number of turns required to close each lock-shield valve and make a note of the number of turns. This way you can reopen each lock-shield valve to the original position, which will ensure that the system balancing is not altered, i.e. if this is not done you will find that the nearest radiators in a bungalow, or the upstairs radiators in a house will get hot quickly, but it will take a long time for the nearest or downstairs radiators to become hot, they will have sluggish circulation and may only get warm instead of hot when it is very cold outside.
Having had several quotes for hundreds of pounds to replace a couple of leaking TRV's I watched your video and ordered the bungs & valves.
It took a while to pluck up the courage to do the job but yesterday I nervously took the plunge and all went well.
Job done and for a fraction of the cost.
Thanks very much for the video and information.
Excellent clear video. No annoying music. Easy to understand thank you.🙂
Thank you so much for making this video. Made an otherwise daunting looking job entirely doable for me and the panic I was in. Discovered a pool of water under the a bedroom based angled TRV and further noticed water damage suggesting it had been stealthily leaking for a while before it had advanced enough to make a puddle. Watched this video, went to Toolstation and sorted within two to three hours. My wife was well impressed so might be able to get away with being a bit cheap this valentines day.
Mate your teaching is second to none.
Really easy to understand and you don't go on to different subjects showing all other crap other people do with DIY videos.
Best DIY videos on CZcams brother
Really appreciate that 👍
Hi
This is exactly what I needed so thank you so much and keep these useful videos coming.
Followed this video to change faulty TRV , managed to do it successfully.
One thing ..I bought the bungs and the expansion vent pipe I couldn't get my bung in as pipe was tight in the corner of tank and the tank wall was pushing the bung to the side , I'd to give up in using the bung and used a wine bottle stopper ( thing u put in the bottle once opened) it worked a absolute treat , I knew it had worked by checking the pressure thru the bleed screw
I accept no responsibility if u have to follow my way of doing it but thought I'd pass on my experience
VERY clear NO nonsense video , explanation second to none
Cheers mate
thanks again DIY man!!
your list of DIY knowledge is endless!!..keep em coming chap!!
Big thanks for this amazing video and showing all steps.
Clear and concise instruction, definitely worth subscribing 👍
Thanks for subscribing 👍
Brilliantly clear! Had no idea it was possible before seeing this video.
😁
Very professional video, a perfect answer to many DIY'ers plumbing challenges.
Thank you. Very clear and helpful.
Brilliant, what a great tutorial. Thank you so much for your clear and well described procedure.
Your welcome 👍
Great Tutorial no gimmicks just straight forward advice Top Notch Thanks Matey
Very welcome 👍
Good job ,easy, simple, straightforward. Good video to the point no jargon.
Another very good plumbing video for a DIYer. Thank you.
Good video.
Anyone doing this themselves, DO cover the carpet well. Heating systems can contain some really rusty or even black sludgy water. It will ruin a carpet if it get on there.
Only thing I would have done slightly differently, especially with microbore rad tails is crack the compression connection to the copper first while the valve is still held firm by the radiator. If that puppy was to suddenly move it while trying to loosen it, it would be so easy to damage the pipework. I know, I have had grips lets go while holding a valve and using an adjustable on a nut. It can ruin your day. As others have commented, I'd count the turns of the locksheild valve as you close it as it's adjusted to balance the system. That one didn't look fully open going by the number of turns to close it off. The float arm on the ball valve was bent a lot and the water level was low. Add to that the level of corrosion, I wonder if the system is prone to pumping over due to a poorly placed expansion pipe in relation to the pump. The low water level could also mean the system draws a small amount of air in as the pump comes on, another cause of corrosion as you introduce fresh air into the system each time.
Great advice, thanks.
Great video , thank you so much.Managed to change a leaking TRV valve today as a result of watching this which I never would have thought possible.The only snag I hit was not being able to get the water to stop despite closing the valves and trying to bleed off the radiator.In the end I just went for it , telling myself it's only water.Somehow managed to get it on first time and thanks to many towels managed to dry everywhere up afterwards.Heating back up and running and no leaks.Happy days.😁
Thank you so much for making this video...Excellent info' and explanations for a job many people would not want to do themselves. Saving the cost of a plumber callout. Thank you...👍
Complete novice and the step-by-step guide worked perfectly. Brilliant. Many thanks. 👍
Fantastic, clear instructions. The best I have seen and I've viewed quite a few. Well done and thanks for sharing.
Your welcome. Glad you like it
Just something extra to add - If you have access to a wet/ dry vacuum cleaner have it running to suck up water as it appears around the valve and air bleed.
Excellent video. You are a very good presenter.
Thanks 👍
Absolutely brilliant video. Clear, concise and expertly done. I have subscribed now. 🙂
That is a really clear set of instructions. Well done!
Great video, changing radiator has always filled me with fear. But from following this video and your advice I overcame my fear and successfully changed out my radiators with out issue. Thanks for taking the time to make and share this.
Your very welcome. Well done for giving it a go 👍
You just made me confident of doing a daunting job myself. Excellent, clear instructions! Totally worth a Subscribe!
Glad you like my videos
Watched your video.. got a couple of bungs, replaced trv valve.. hard job made easy ❤
Thanks for a clear concise video
Easy to follow. Every step clearly explained. Thank you
Your welcome 👍
Great video , always interested in how other professionals work . Your guide is really easy to follow . If it had been a combi system , I would have taken the opportunity to have drained the rad and filled it with inhibitor . Will be watching more of your videos now .
Thanks glad you liked the vid
Good practical advice, even for experienced DIY people. Simple, no nonsense instructions. Keep up the good work 👍
Thanks 👍will do
If you already have a thermostatic valve , no need to replace the whole unit. just change the thermostat on the original fitting. just make sure you buy a like for like thermostat.
Thanks for sharing your clear tips. Well done.
Thanks. Glad it was helpful.
Was waiting for someone to come round to fix this but should be able to do it myself, great explanation
Fantastic walk through of switching out a radiator valve, time to order those bits and get it done :-)
😊q
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Qlqlqa1
A great video, thank you. Like other commenters, I really appreciate the straightforward style, that you stay on your topic, and the lack of intrusive back ground music.
Thanks a lot 😁
Well presented, simple and straightforward - Good Job!
🙂
Clear, easy to follow video. I do a fair amount of plumbing in our house, but have yet to tackle replacing these TRV *without* draining the system as you say. Didn't catch your name, but thanks all the same !
Glad it was helpful
Sorry brilliant 😂👍
The rubber bungs are a modern take on this operation.
Years ago we used to use the vegetable method. Sounds absurd but a carrot an half a potato were the items of choice.
The carrot was paired down to a taper and this was used to bung up the tank outlet, the cut face of the spud was used to block off the expansion pipe.
Worked every time....you just needed to be careful not to snap the carrot or spud off when removing them.
😄
I always carry a handful of bear barrel tapered wood plugs, gained from working in a brewery
Wine bottle plastic corks fit my pipes, cheers!
Also if your having them for dinner rinse off well before cooking.
If you have leaks then you only have yourself to blame 😂🤣😂🤣
Thank you so much, very clear and informative. Now going to have more confidence when I replace my valves. Cheers
Glad it was helpful 👍
Brilliant clear and concise videos, very easy to understand
Thanks a lot
Got to say that's one of the best tutorial videos I have seen on CZcams - very clear. I might have tied up the arm on the header tank valve in case there was a major leak and many TRV's fail because the little pin sticks - might be worth showing this and how to check/free them so you don't need to do a full replacement.
Absolutely, thanks
I was wondering what would cause a TRV failure.
Thanks for that. 🏆
Very simple and easy instructions. Shows how easy it can be to do yourself and save a fortune by not involving heating engineers. Definitely worth considering.
Absolutely 👍
Next he will be showing us other ways of putting plumbers out of business
@@johncoakley9618 plumbers should make more effort to work and not overcharge then.
That would result in no people viewing, I stead there are more views whilst plumbers grumble.
@@troyharwood5377So all plumbers overcharge do they ?,and more effort to work ? what the hell does that mean ?
@@johncoakley9618 yes, all independent plumbers overcharge.
If you do not understand what I mean by working harder, my very point is proved.
Thank you mate! Very clear instructions and made the job easy!
I’m already subscribed and used your attic light video previously. 👍
A good video, easy to follow.
Two points I would add.
Be aware that on occasions you can get different threads on valves and it is wise to check compatibility, before getting part way through and going "Ooops!".
Second point.... I'd strongly suggest engaging the thread on the new valve body onto the radiator before tightening the inlet pipe nut.... it avoids finding there is slight mis-alignment on the second thread and having to re-align the first......
aren't all pipes BSP threads?
@@MrDigga53 I'd guess a mixture of BSP and metric...... I've been caught-out before with that.
How can you know? I get you will on the valves you purchase but what about existing pipe?
Great video.
With a header tank in that dirty state, I would be advising the client of a pressure flush, far too much gunk in the system! Put an additive in as well. Stay safe!
Thanks for your comments. You stay safe too.
i wouldn't be advising the client of a pressure flush unless they were actually having trouble with gunk in the system
@@cliveramsbotty6077 you would if you wanted to charge them 400£ for half a day’s unnecessary work. 😮
@@1longholiday lol. 'i'm going to spend half a day pumping water around your system, that pumps water around your system. i might show you some discoloured water as well to justify the massive price i charge to pump water around'
Powerflush on 8/10mm pipe. Sure thing boss
excellent explanation. very clear and concise
Brilliant communicator. So clear and straightforward.
Thanks a lot!
another thing that helps , close all other radiator valves
Nice, clear video - Thanks!! So for a pressurised system, do you just reduce the pressure in the one radiator - then re-pressurise the system, bleeding each radiator on the system?
You shouldn't need to bleed each rad. What I do is close every other radiator valve and you'll get minimal drippage.
E vs scared of office lzyymsss
Super video and very Clear with no jargon 👍
Thanks 👍
You learn something every day, I always thought TRV's worked on room temp not radiator temp.
I’d recommend counting the number of turns on the lock shield valve and return it to the same position as the system should be balanced. This done to allow all radiators an equal share of water when the heating comes on otherwise the nearer radiators to the boiler heat up first.
Video on the way for this exact subject
But how many systems have ever been properly balanced?
Can you do an edited version of this for a non gravity system? I found it confusing although I was very impressed by the quality and laughed when I thought about the type of DIY videos we had to put up with a few years ago. Thumbs up.
Its basically the same only you dont have to bung up the header tank in the loft 👍🏻
Thank you very very much for the information.. just one thing.. can I just change the top value only? That is not replacing the metal piping.. if so, are the top value all standard size?..Thank you.
Thank you very very much for the information.. just one thing.. can I just change the top value only? That is not replacing the metal piping.. if so, are the top value all standard size?..Thank you.
@@dw1hkdavidtkwongI would have thought they come as a matching pair, but you could try. You’d have to make sure it’s the same type of valve for the TRV. Mine do not screw on to the body like in this video, so these wouldn’t fit my valve for instance.
Can you not push the ball valve up and put a bit of wood underneath it to stop the tank filling up? Maybe tie it on to secure it.
Fantastic - thank you! Highly recommended. So easy to to follow with links to the kit too. The bungs are a brilliant addition to my girly tool bag.
Glad it helped you out
TRV replaced! Thanks! Couldnt have done it without you!
Just a thought if you're replacing an very old valve: the length of copper pipe extending past the olive can be too long 😢. I found this when replacing all the valves in my current house so had to do a full drain. Also used liquid PTFE to ensure a seal.
And the nut on the rad tail might be a different size on a very old TRV.
As a plumber, I would advise NOBODY takes this approach. By all means do it yourself, but drain the system. There are too many variables if this goes awry.
I watched the video which was very clear except I have watched a similar video changing a valve on a combi system where the guy when pulling off the old valve had to put his thumb over the pipe to stop water under pressure leaving the pipe. Then manipulate the new valve quickly on causing a loss of water. In your video you say a pressurised system valve change was the same as a gravity system without the need for the bungs . I am slightly confused, why did the other guy have water leakage under pressure
I agree. I feel like this doesn’t apply for a combi system. Closing the TRV isolates it at this point, still a load of pressure behind it!
Agree
If you bleed the system pressure down, which he did do - using the screwdriver, first you are then reducing the pressure in the system before you go near the valves ..
But he didn't drain the entire system, so isn't there still pressure behind the valve in the copper pipe, so that when you take the button nut off water will come out quite fast?
God does he go on turned the hobbit onto Lord of the rings extended version😂
Excellent and very useful video/instructions.... Going to have a go this afternoon! Many thanks! 10/10
Great videos . Great and straightforward instructions.. Thank you
So clear your instructions are great i will definitely have a go .Thank you so much
Give it a go
Top class... very clear instructions.... very well spoken.... good job.
Thanks very much
Excellent video, very useful thanks.👍🏻
This is exactly what i was looking for, now I know what do. Many thanks.
Excellent explanation, thanks for sharing this information.
Fountain! I've a combi system with boiler on first floor and I'm replacing a leaking TRV on the ground floor.
I watched the video about 8 times before I thought I knew which steps applied to combi and which to gravity. On the first attempt I got as far as loosening the fitting below the old TRV and it quickly became clear that there was plenty of pressure down there! So I quickly tightened it all up again and watched the video a couple more times but learned nothing new. So I decided to plan for plenty of leakage. I taped a towel to the wall and made sure I had a pile of towels underneath the water-catchment-tank (must be a better word for it). So I retraced my steps to the point when I've slightly loosened the fitting below the old TRV, made sure I had the new (closed) TRV within immediate reach, then uncrewed the fitting, wriggled the old TRV out and wriggled the new TRV in so as to block the 40cm high fountain coming out of the pipe. Phew! Luckily the pipe was sturdy 15mm. Finally I did up all the fittings, bled the air out of the radiator and opened up the bypass arrangement to re-pressurise the boiler.
All's well that ends well! Was there something I should have done at the boiler end? Did I get a lot of water pressure because the boiler is on the floor above? Would there have been something else bypassing whatever I had shut off?
Thanks for a very professional video and I think I got there more by luck than judgement.
I'll still be back for further inspiration 😀😄
Absolutely fantastic explanation - So well explained, you couldn't go wrong with the procedure at least. Thanks, this is going to save lots of grief - subscribed
Thanks for subscribing 👍
Really good advice. Made a complicated task a lot more achievable. Many thanks
Glad it helped you
Thank you for this info,you explain everything in simple terms.
Thanks👍
Brilliant video which I followed exactly according to your instructions and I now have a shiny new TRV and managed to avoid any leaks. Also, no need for the Fernox or PTFE tape when fitting the new TRV! I had a little trouble understanding you when you mentioned the 'tank bungs', so thought I would mention them here. I bought a pair from Amazon for £13.99 (Heatlab brand) - expensive for what they are, but much cheaper than calling a plumber! Many thanks.
Complete beginner with anything to do with plumbing. This video was clear, very well explained and incredibly helpful.
I personally had a bit of difficulty removing the old TRV as the the pipe was very stiff and didn’t have much wiggle room, got it off eventually after being brave enough to push the pipe slightly. Strongly recommend anyone who has the same problem as me to be extra careful if you need to do this.
Excellent. Very easy to understand without too much technical jargon
Cheers
Useful info. I did not know about those pipe bungs but I have a combi boiler anyway. I did not know that it could be done without draining the system so it'll probably save me hours the next time I need to change a valve.
the man's a genius. Great presentation
Great video just discovered the channel and have a big renovation project on at the moment so very helpful
Excellent. Many thanks. First time I have heard of the tank bungs and now I can change my rad with confidence and not having to drain down. Much appreciated.
Great to hear! Thanks
Great explanation Mate, clear and no BS ..thank you
Absolutely 😉
Superb instructional video mate - really made life easy for me, saved hours 👍
Glad it helped you
Love it! Simple and clear. Subscribed!
Thanks for subscribing
Thanks for the free education. Much appreciated and helpful!!!
thanks very well explained. followed your step by step guide and fitted 4 new trv,s thanks no bother at all.
Great! 👍
What a wonderfully clear, no-nonsense explanation. I have two radiators which are stuck on full heat and I can't free the TRV pins, so time for replacement valves I think. Still not 100% sure I have the courage to do this myself, but if I get a heating engineer in I now know they can do it without draining the whole system. Either way, thank you!
Hi , finally got around to doing the job,5 star 🌟 advice , Many thanks.
Your very welcome
I have watched most of your videos ,they have helped me enormously…your videos are really well presented ,thank you…..i cant seem to find a video that shows how to replace a lockshield valve that has pressure coming in to it..from the opposite side of the trv valve….using all your tips i have bunged up a header tank in the loft and helped friends put in so many bathrooms…but for the life of me i keep thinking if i take off a lockshield valve the pressure will force a heck of a lot of water out…i need to replace one as the existing one has older connections..not like the new radiator which i would like to fit..any info is welcome…terrific show and thanks again.
Great video. Will give me extra confidence to balance my radiators and change valves.
👍 glad it's helped give confidence
How easy does that look. Good video and well explained without being too technical. Thanks very much.
Thanks 👍
Great video, very clear steps.
Thanks 👍
Thank you very much.
You have explained this video so nicely in details. I will always go to your videos if I want to do any D.I.Y. Thanks Again
Most welcome 😊
Nice video mate, I think you don't have to go crazy with tightening the new valve. Your pipes seem relatively thin so maybe just a little force will be sufficient
Great video mate , the best video on the subject on CZcams. Thank you .
Appreciate that 👍
Very well described . gives me confidence .
Go for it
Just subscribed , wanting to take radiator of living room wall to get years of old wallpaper and paint build up of . I had just isolated and drained the 1 radiator but there’s no play whatsoever were the RTV pipe enter’s the radiator . Going to buy the bungs from your Amazon store and follow your instructions in this video. Brilliant buddy just learned something from this big thumbs up 👍
Very clear presentation and well constructed.
Glad it was helpful!
Perfect timing. I have to do this for one radiator and knew nothing about using the two bungs in the tank. Very many thanks.
No problem 👍