I had a problem with rads not working and I've watched a few tutorials for some reason i understood this video more than others, thanks for the tip 👍 much appreciated
Thank you for this explanation. I shut off the kitchen radiator (which was closest to the boiler) as it is unnecessary to ever be on and the rest of the radiators heated up perfectly! No longer cold! Thanks!
One important tip I missed in this video is that if a radiator stays cold it could be due to the Thermostatic valve being stuck. This mostly happens on radiators that are not used very often or were not used for a long time. Just remove the thermostatic knob like shown on 1:26 and use some (penetrating) oil on the valve while pulling/pushing the valve in & out with a plier. After this, screw the thermostatic knob back on the valve like show on 1:34. Simple and only takes a few minutes.
Yes, great tip. It (also) happens when you keep the thermostatic valves at the same position for a long time. To prevent this, turn the valves knobs all the way from left to right regularly.
Informative with the diagrams. God bless and thank you for this. I'd like you to elaborate more on the feeding loop under the boiler and what does it serve? From the diagram, it seems like the feed of cold water will go to the inlet of the boiler, then take a feeding loop of cold water. The boiler will have two outlets of hot water, one for a normal tap/sink, and the other outlet of hot water will distribute to the radiators.
Watched your video, I have never really understood how the hot water heating system works as I grew up in a tropical climate. But this is an eye opener for me. Going to try and sort out my radiators now. Many of.
An excellent way of explaining how they work. The part about the balancing is what I think is wrong with mine. I’ve replaced the radiators one by one since moving in and some of the new ones no longer heat up. I’ve opened all the lock shield valves fully thinking it will increase the flow of water but that’s where I’ve gone wrong. Next thing is to balance them and increase the water flow to the ones furthest away from the boiler. Thank you for making this video 👍🏻👍🏻
I have watched a few videos explaining the same situations and this for me is the clearest and most straight forward. Well done and keep up the good work👍🏼
Incredibly helpful video and diagrams are excellent. As others have said, learned more in a few minutes here than several hours of other videos on TH-cam. Spot on
if you have a boiler where the speed of the circulation pump can be adjusted, set it as low you can where all radiators still get heat then adjust the lockshield valve so the return pipe does feel warm to the touch this requires some going back and forth the idea is that you extract as much heat and hence you dont need to let the boiler run more than it has to
Hi, I think your videos are very helpful, one thing I noticed when balancing my radiators the temp on the return pipe is hotter than flow pipe with the trv..
I have just installed hot water radiator heating yesterday (when price is low in summer). And I had trouble figuring out how the system works. So I went to TH-cam and luckily found this very simple and straight forward explanation how the system works. I still wonder about one thing, where is the force generated to push the hot water to circulate around the radiators? Obviously, it is from the furnance. But when the water is heated inside the geater it generates equal pressure on the hot and cold pipe outlets. If this were true then there would be no net flow through the radiators. So, what makes the pressure difference between the hot water outflow and the cold water inflow? Is there a need for a pump to do this work? Thanks for any help.
Hi, thank you for the explanation. It really helped me understand how my radiators work. I am going to have a tough time finding out which warms up first and last bcos I have too many across three floors.
Great explanation, clear and to the point. As someone as mentioned another possible issue for a cold radiator could be the thermostat valve damaged or stuck, very easy to fix but worth noting for those inexperienced people out there an maybe should be added in the video as future update? Thanks to the content creator for this video
Hello. So these thermostatic valves that come on when it detects the room has dropped below the desired set temp on module thing I’m having issues with. Can I just take the thermostatic valve off like in the video too stop system starting all the time If I m making sense. Cheers
I don't know if you are a skillful plumber/heating expert or not. But you are certainly a good educator. The problem with trying to learn something from the plumber is that they are not good at explaining things and tend to show off their knowledge rather than helping you to understand something, which is fine since it is not their job to educate anyone. Additionally, most plumbers would not know how to make that animation.
Another excellent video mate I have the same problem with our radiators your explanation and illustration was spot on keep the videos coming and thanks for sharing 👍
vey helpful video, thanks! i wonder with the return water going back to the central heating system, is it a problem that some of the impurities from the inner pipe of radiator also goes back and thus damage the heating system?
Hey thanks, this video was really helpful. I have two radiators that I turned off recently (last year) as we rarely used the lounge and dining room. Now this Xmas I wanted to heat the rooms I turned them on and they are stone cold. So I followed your instructions and tried reducing others near by to divert the hot water but still nothing. Any ideas or suggestions on what i should do? thanks
Hi, I really love the animation you created for this with the water hot/cold flowing through the pipes. I am currently working on something that I am try to do this, show water flowing through a tube. Would you share what software you used to create this and possibly how you did it? Thanks again :)
Thank you for this clear explanation. It helped me understand how it all works, however, I was also hoping to find the answer to the issue that I have - a radiator that is noisy (sound of dripping water inside the radiator) even after bleeding. Closing the lockshield valve helps but the. Of course radiator goes cold after some time. Would anyone know what the issue may be here? Thanks.
October now. New boiler fitted in 3 floor house by Brit Gas last month. When heating goes off, top floor rads v hot. Same floor as emersion tank. Initially top floor rad long to heat. Now the opposite. Rads had power wash. Something stuck? What's the problem, do you think? Advice appreciated!
Very clear video, thank you. My new home has floor heating on ground floor (where the thermostat is also installed), keeping the temperature very steady. First and second floor however are radiators, 4 pieces in total, 2 of which remain more or less luke warm, never more. Also, the other 2 are cold at the bottom which tells me the temperature drop (delta T) is too great for the boiler to sit in its HR range. Where do I begin correcting this?
👏thank you for a great video 👏👏👏👏Best video about cold radiators . I have seen so many videos about this subject that I am an expert on this :)). Do you have a video on how to remove a radiator and clean the sludge if any inside. Thank you
Brilliant video, I am about to replace a filling loop on a condensing boiler it has a tap on both ends on one end it has a none return valve but have conflicting info as to which goes on which side can you help please thanks in advance Paul
Helpful ideas. The thermostatic regulator frequently broke on a large low pressure steam system. Many times the replacement controller did not mate with the spring loaded shut-off part installed in the piping. Both parts had to be changed then. Hot water systems usually operate at lower temperatures than steam so the plastic thermostatic controllers last longer.
Question, 1 cold boiler. 2nd from boiler I believe, lockshield and thermostatic set to fully open and highest setting but still cold. Bled all radiators but no joy. Not boiler issue as all other radiates are working. The inlet heating pipe is also cold.
Which is a better way to heat a home, here in Canada is forced air since natural gas is very abundant. Some homes in the northern parts heat by electricity ( very expensive) or propane, again expensive. My step agents in Greece have radiators, I’m amazed on how small the heater is. Your thoughts.
Excellent video 👍 What causes for the boiler pressure to go to zero? Today we don’t have hot water nor heating and the pressure display shows zero. Have opened the water valves the indicator goes to 2 then it drops again to zero. Is this a job now for a gas engineer? Thank you 🙏
Hello, I've been watching many videos made by you and I did find them very useful.I have a quick question,are you able to learn or share from your skills to someone like me? I'm very patient and focus on details.I will be very happy to learn from you, thank you.
in your first diagram you show the hot water feeding sequence heating both up and downstairs rads. The rad closest to the boiler upstairs heats first and the 2nd one to heat up is now downstairs, 3rd up and 4th down. but your 2nd diagram on balancing the rads contradicts this by setting the lockshield valves in a follow on pattern of 1st up quarter turn - 2nd up - 3rd down - 4th down fully open. Should you actually set the LSVs as up - down - up - down?
Hey, This is a good video with a clear explanation. Only there are a few things I would do differently. For example, your Thermostatic valve is mounted incorrectly. It should be horizontal for proper functioning. Also, many problems with radiators not heating up can be solved by connecting them diagonally. Especially for radiators with a height higher than 600 mm. Kind regards Bart Goos
It's recommended to disconnect the filling loop hose because you could have a passing/leaking valve that could continually fill your boiler. Disconnecting the loop will help you spot any leaks.
To be honest, I feel better informed of how my heating works than I ever have. That was extremely helpful and well explained. Thanks a lot!!
No theatrical displays of silly quips - Just plain and simple explanation with diagrams. I learned a great deal. Great job and thank you.
this is the most straight forward video on heating ive seen to date, easy straight forward instructions.. top man
I had a problem with rads not working and I've watched a few tutorials for some reason i understood this video more than others, thanks for the tip 👍 much appreciated
Brilliant 🤩
Just rebalanced mine after watching your video, they are now working perfectly
Thanks 🙏🏼
These informations are quite obvious, but I needed to hear them in order to realize those things
Thank you mister!
Dude, I could listen to you explain stuff in your accent all day. Taught me what I came here to learn too. Legend.
Thank you for this explanation. I shut off the kitchen radiator (which was closest to the boiler) as it is unnecessary to ever be on and the rest of the radiators heated up perfectly! No longer cold! Thanks!
One important tip I missed in this video is that if a radiator stays cold it could be due to the Thermostatic valve being stuck. This mostly happens on radiators that are not used very often or were not used for a long time. Just remove the thermostatic knob like shown on 1:26 and use some (penetrating) oil on the valve while pulling/pushing the valve in & out with a plier. After this, screw the thermostatic knob back on the valve like show on 1:34. Simple and only takes a few minutes.
Yes, great tip. It (also) happens when you keep the thermostatic valves at the same position for a long time.
To prevent this, turn the valves knobs all the way from left to right regularly.
Never pull the pin if its stuck and the system isn't de-pressurised
I used wd40 spray and all opened up fine ! Try to turn left right gently and they should come back to work ! 👍🏽
unless there is hard water
8 min and learned more than every other heating video on YT! Great stuff!
Informative with the diagrams. God bless and thank you for this. I'd like you to elaborate more on the feeding loop under the boiler and what does it serve?
From the diagram, it seems like the feed of cold water will go to the inlet of the boiler, then take a feeding loop of cold water. The boiler will have two outlets of hot water, one for a normal tap/sink, and the other outlet of hot water will distribute to the radiators.
Watched your video, I have never really understood how the hot water heating system works as I grew up in a tropical climate. But this is an eye opener for me. Going to try and sort out my radiators now. Many of.
I had some issues with my heating and saw this video without any technical knowledge. The video helped a lot! Big thanks !!
An excellent way of explaining how they work. The part about the balancing is what I think is wrong with mine. I’ve replaced the radiators one by one since moving in and some of the new ones no longer heat up. I’ve opened all the lock shield valves fully thinking it will increase the flow of water but that’s where I’ve gone wrong. Next thing is to balance them and increase the water flow to the ones furthest away from the boiler. Thank you for making this video 👍🏻👍🏻
I have watched a few videos explaining the same situations and this for me is the clearest and most straight forward. Well done and keep up the good work👍🏼
Incredibly helpful video and diagrams are excellent. As others have said, learned more in a few minutes here than several hours of other videos on TH-cam. Spot on
One of the clearest explanations I've seen. Thank you!
Brilliant. The part about balancing is a superbly explained process. Thank you.
This is the most helpful and straight forward guidance on the central heating issues. Thank you very much!!!
if you have a boiler where the speed of the circulation pump can be adjusted, set it as low you can where all radiators still get heat
then adjust the lockshield valve so the return pipe does feel warm to the touch
this requires some going back and forth
the idea is that you extract as much heat and hence you dont need to let the boiler run more than it has to
The experts say to go for a 20°C temp drop across rads.
However, the fact is you don't need lockshield valves at all on a fully TRV system.
Simple explanation of heating system in UK..thank you for your valuable efforts
Superb video mate thank you. Anyone reading, let the rads go cold before bleeding them!
Simple, clear instructions. I’m off to sort my radiators. Thank you!
I watched several videos and did my mother's radiators. They and the boiler are so much better now and hopefully more economical
Hi, I think your videos are very helpful, one thing I noticed when balancing my radiators the temp on the return pipe is hotter than flow pipe with the trv..
The best easiest to follow video I have ever seen on this subject. Thanks for the great work!
Pretty straight forward information shared on this video, very helpful and fast way to get to the possible solution.
Thanks a lot.
I have just installed hot water radiator heating yesterday (when price is low in summer). And I had trouble figuring out how the system works. So I went to TH-cam and luckily found this very simple and straight forward explanation how the system works.
I still wonder about one thing, where is the force generated to push the hot water to circulate around the radiators? Obviously, it is from the furnance. But when the water is heated inside the geater it generates equal pressure on the hot and cold pipe outlets. If this were true then there would be no net flow through the radiators. So, what makes the pressure difference between the hot water outflow and the cold water inflow?
Is there a need for a pump to do this work? Thanks for any help.
Hi, thank you for the explanation. It really helped me understand how my radiators work. I am going to have a tough time finding out which warms up first and last bcos I have too many across three floors.
Excellent video, helped me save a boiler engineer call out fee. Thank you!
Great explanation, clear and to the point. As someone as mentioned another possible issue for a cold radiator could be the thermostat valve damaged or stuck, very easy to fix but worth noting for those inexperienced people out there an maybe should be added in the video as future update? Thanks to the content creator for this video
Hello. So these thermostatic valves that come on when it detects the room has dropped below the desired set temp on module thing I’m having issues with. Can I just take the thermostatic valve off like in the video too stop system starting all the time If I m making sense. Cheers
Very simple, easy and clear. Great demonstration.
A good clear presentation that has provided some useful pointers. Thanks
The best video, quick explain without bullshit about weather. Respect, Thank you , it was helpful
I don't know if you are a skillful plumber/heating expert or not. But you are certainly a good educator. The problem with trying to learn something from the plumber is that they are not good at explaining things and tend to show off their knowledge rather than helping you to understand something, which is fine since it is not their job to educate anyone. Additionally, most plumbers would not know how to make that animation.
Amazing video. Well explained and with graphics. Lots of times spent to make it perfect. Thank you for giving your time to all of us.
Thanks for the great explainer.. always feel better tackling something like this when I know what's actually going on under the hood.
Another excellent video mate I have the same problem with our radiators your explanation and illustration was spot on keep the videos coming and thanks for sharing 👍
Great video which has made my life at lot easier I finally know how a heating system works.
vey helpful video, thanks! i wonder with the return water going back to the central heating system, is it a problem that some of the impurities from the inner pipe of radiator also goes back and thus damage the heating system?
Thanks for the video. I got the basics now.
Brilliant and thorough explanation, thank you!
I'm so happy that I learned something today thanks so much for ur lovely explanation
Watched it, learnt and adjusted, now works great. Thank you.
Like the other people have commented - Brilliantly explained
You are a life and money saver - God Bless and thank you - Brilliant detailed instructions
Keep up the good mate. You always explain everything clearly. Thank you.
Thank you so much. I can finally get an understanding of what is going on in the darkest areas of my knowledge, God bless.
save my life thanks very much. it is too brilliant to explain how good this video is.
Hey thanks, this video was really helpful. I have two radiators that I turned off recently (last year) as we rarely used the lounge and dining room. Now this Xmas I wanted to heat the rooms I turned them on and they are stone cold. So I followed your instructions and tried reducing others near by to divert the hot water but still nothing. Any ideas or suggestions on what i should do? thanks
Hi, I really love the animation you created for this with the water hot/cold flowing through the pipes. I am currently working on something that I am try to do this, show water flowing through a tube. Would you share what software you used to create this and possibly how you did it? Thanks again :)
I'll put this video in my favorites for this spring cleaning and check of my whole installation thank you very much
Subscribed before even listening to your discription, but u have a vibe brother. Bless You and your kin. 🙏🏾
Really great video.
I would like to know whether fluid will circulate without help of a circulation pump??
Excellent video clear & easy to understand thank you for your time and information 👍🏼
The force is strong with this video !
Also I have this same boiler, the diverter valve keeps failing (plastic or metal, they both fail) :(
Been looking for an anomation of a boiler for a while and you guys did a great job!! Thank you!!!
Crystal clear and concise explanation! Thank you!
Great video. Is there a pump in the line somewhere to circulate the water ?
Nice way of explaining everything I understand it clearly .
Perfect i got my problem solved becouse your video , thank you so much
Thank you for this clear explanation. It helped me understand how it all works, however, I was also hoping to find the answer to the issue that I have - a radiator that is noisy (sound of dripping water inside the radiator) even after bleeding. Closing the lockshield valve helps but the. Of course radiator goes cold after some time. Would anyone know what the issue may be here? Thanks.
You have a very calming voice
Well explained, another TIP ----> Add Fernox Central Heating Protector F1 to your system ;)
Thanks a million you explained brilliantly now my heating toastie again
Amazing amazing amazing, thank you! MY FLAT IS TWICE AS WARM NOW!
October now. New boiler fitted in 3 floor house by Brit Gas last month. When heating goes off, top floor rads v hot. Same floor as emersion tank. Initially top floor rad long to heat. Now the opposite. Rads had power wash. Something stuck? What's the problem, do you think? Advice appreciated!
Good stuff would you know why I keep getting air trapped in the radiators upstairs? I bleed them every week the radiators downstairs are good
Very clear video, thank you. My new home has floor heating on ground floor (where the thermostat is also installed), keeping the temperature very steady. First and second floor however are radiators, 4 pieces in total, 2 of which remain more or less luke warm, never more. Also, the other 2 are cold at the bottom which tells me the temperature drop (delta T) is too great for the boiler to sit in its HR range. Where do I begin correcting this?
👏thank you for a great video 👏👏👏👏Best video about cold radiators . I have seen so many videos about this subject that I am an expert on this :)). Do you have a video on how to remove a radiator and clean the sludge if any inside.
Thank you
Brilliant video, I am about to replace a filling loop on a condensing boiler it has a tap on both ends on one end it has a none return valve but have conflicting info as to which goes on which side can you help please thanks in advance Paul
Never had this explained so well
Consistent video full of useful informations and less rubbish talk! Well done 👍
feeling like i am Gas Safe engineer Now :D
Very nice video and great to understand.
thanks
Helpful ideas. The thermostatic regulator frequently broke on a large low pressure steam system. Many times the replacement controller did not mate with the spring loaded shut-off part installed in the piping. Both parts had to be changed then. Hot water systems usually operate at lower temperatures than steam so the plastic thermostatic controllers last longer.
Question, 1 cold boiler. 2nd from boiler I believe, lockshield and thermostatic set to fully open and highest setting but still cold. Bled all radiators but no joy. Not boiler issue as all other radiates are working. The inlet heating pipe is also cold.
Ive seen a few videos... this is the best and detailed one
Which is a better way to heat a home, here in Canada is forced air since natural gas is very abundant. Some homes in the northern parts heat by electricity ( very expensive) or propane, again expensive.
My step agents in Greece have radiators, I’m amazed on how small the heater is. Your thoughts.
Excellent video 👍 What causes for the boiler pressure to go to zero? Today we don’t have hot water nor heating and the pressure display shows zero. Have opened the water valves the indicator goes to 2 then it drops again to zero. Is this a job now for a gas engineer? Thank you 🙏
Hello what was the outcome
water leak somewhere maybe? Check all rads for leaks
2 minutes in and you solved my problem. Thanks so much for sharing :)
TH-cam is the dad I needed
I feel you
Really useful video thanks so much! One question, why would I not just open all the locks to 100%?
Yes 🙌 ,I'm looking for this answe too if you can help
nice information i saw it in UK but not in India so I wants to know how it work
Hello, I've been watching many videos made by you and I did find them very useful.I have a quick question,are you able to learn or share from your skills to someone like me? I'm very patient and focus on details.I will be very happy to learn from you, thank you.
in your first diagram you show the hot water feeding sequence heating both up and downstairs rads. The rad closest to the boiler upstairs heats first and the 2nd one to heat up is now downstairs, 3rd up and 4th down. but your 2nd diagram on balancing the rads contradicts this by setting the lockshield valves in a follow on pattern of 1st up quarter turn - 2nd up - 3rd down - 4th down fully open. Should you actually set the LSVs as up - down - up - down?
Hey,
This is a good video with a clear explanation.
Only there are a few things I would do differently.
For example, your Thermostatic valve is mounted incorrectly.
It should be horizontal for proper functioning.
Also, many problems with radiators not heating up can be solved by connecting them diagonally.
Especially for radiators with a height higher than 600 mm.
Kind regards
Bart Goos
First class. Very well described. Thank you.
It's recommended to disconnect the filling loop hose because you could have a passing/leaking valve that could continually fill your boiler. Disconnecting the loop will help you spot any leaks.
Your videos are very informative. Thank you, and keep it up.
Great video. Clean, clear, plane language and accessible.
Great work, really well explained and simple to follow. Super helpful!
Fantastic explanation...
Bubu uhșe SC g5 GT g5
Great video. Helps explain my rads. Thank you 👍👍
Fantastic explanation , you made my days warm
Thanks dear for the info about heating systems in the house
Best of the best, thank you very much mate,
Best explanation
One Q - bleeding : do you do this when heating is on or off? & also do you start from top down?, thanks
Excellent video. Very informative. Learned such a lot. Keep up the good work.
Super thanks
Best and clearest explanation
Top video, clear and simple. Thank you
Should be the top comment on every hard working youtuber’s cmt section
This video is so helpfull! Thank you so much for the amazing explanations!