Remove Air from your Boiler and Heating System | How To

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Pipe Wrench: amzn.to/2VQeox8
In this video, I demonstrate how to purge air from your heating system. Get yourself a hose and do it yourself! Its easy and you can save a lot of money on service calls and improve the efficiency of your heating system which in turn will cut costs on your utility bills.
#HVAC #airinpipes #boilers

[@fixitwithzim]

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[@quydirmuchisonee7167]

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[@quydirmuchisonee7167]

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[@jamesaydelott8867]

Jn.

[@nhatlinhvo]

Hi Zim, My my water city valve located up of the valve that you turn off in the video. If I turn it off the valve, then the city water is not going to the system as picture. Should I turn off the valve or not? Thanks

[@fixitwithzim]

@@nhatlinhvo no, don’t ever turn off the water feed to the system. That always needs to stay on! Many residential systems don’t have a low water cutoff. You can create a dangerous situation with the makeup water turned off

[@adropzone4451]

this is truly the way KZbin was originally intended (to share useful info we all could benefit from)...thanks a million Zim.

[@fixitwithzim]

Thank you, appreciate that! 👍🏻

[@samabner2450]

I had three different hvac companies try and get the air out of my system, no luck. Watched this video and did it myself, worked perfectly. Can't thank you enough.

[@fixitwithzim]

Awesome stuff!! Glad you got it fixed!

[@larrywhite9854]

How much did the 3 companies charge you for no results

[@MsChunky666]

Well your first mistake was calling and hvac company. They deal with air not water.

[@mackenziegray2090]

@@MsChunky666 🤣 yes they do.

[@MsChunky666]

@@mackenziegray2090 not on my state.

[@teenice894]

I love the fact that you had 3 zones, it gave us the chance to watch you demonstrate the process 3x.... my second floor has no heat and all the kids rooms are up there. I will be doing this tomorrow. 🤞🏽. Thanks

[@xcali3ur561]

Hands down the best explanation of “how to” video. I am super impressed by you taking the time to explain everything including the expansion tank. I am still new to hydronic boilers so this is a blessing to see first hand.

[@fixitwithzim]

Thanks, glad the video helped you!

[@jaybee1930]

Yes thank you for this very well explained purging process

[@bnice12]

This is a great purging video for sure...only discrepancy I have is regarding inlet of expansion tank. The orientation of the label means nothing. How the info is printed on the tank is only that way because of manufacturer. The correct way to tie in an expansion tank on horizontal piping is not hanging below directly it, particularly in a system with iron components. Eventually particulate matter from these components, or copper shavings, etc will settle in that port and on top of the diaphragm causing he tank to fail. Upright is best, if the tanks Schrader valve is not too high and accessible. Many if not all horizontally plumbed air eliminators have a 1/2" port on the bottom for expansion tank hookup and this is fine as long as it's offset with a few elbows. Expansion tanks lose about 1# of air per year thru osmosis...so they need to be checked yearly included in the annual inspection. They should be plumbed in as near to the boiler as possible and as near to the Autofill/prv as possible. This is your point of no pressure change and if possible...ALWAYS pump away from this. You will have virtually zero air issues if it's done this way. Expansion tanks should be plumbed in to the system with a valve and then boiler drain before they tie in because the pressure must be drained off the tank before checking with gauge. Hope this helps!!!

[@dubmob151]

​@@bnice12 that all makes sense, that the inlet should be on the bottom and the air bladder above. If the expansion tank has no air pressure in it and then filled with water to the nominal 12 or so psi, would that damage the bladder in the tank or does it have enough flexibility to push all the way to the walls of the tank?

[@elizeubranquinho4467]

the best explanation without boring people out, direct to the point and clear

[@fixitwithzim]

Thank you, appreciate that!!

[@toddrengel]

Great video, thank you! It helped me purge air from a closed loop marine hydronic heating system with a manifold. Same exact principals and it worked like a charm. Really appreciate your clarity and breaking down what’s going on.

[@Jakery1057]

Video is 5 years old and still saving folks like me some MONEY!! Thank you Zim!

[@maxpowers8791ify]

I like that you explained the "why" versus just the "how". Very important on these videos! Thanks for the help!

[@ToddJGagne]

Thank you for a Chrystal clear explanation of each of the steps for this task- great job

[@dmanthonyX]

100% best video I’ve seen on the subject. It’s an extremely easy system to bleed once you know what you’re doing. You made it as straight forward as possible. Now, I don’t hear water rushing through my pipes. My puppies are creaking when turning on, but so much quieter.

[@willharry2184]

This was absolutely fantastic. Your ability to narrate, demonstrate, and at the same time anticipate and preemptively answer your viewers' questions is uncanny and something which every KZbinr should strive to emulate. I'm now going to spend the next several hours watching every video you've made 😂

[@genestanco6558]

Thank you a 1000 times! From a working guy trying to the right thing like updating baseboards , old drain valves and circulator pump, was working just over 20 years old. Tried to bleed at each baseboard, spent 1 day doing and still two furthest baseboards barely warm. Did exactly what you instructed! Awesome!

[@dabugman6415]

Best, well explained video I've ever watched on this subject. Thanks!

[@fixitwithzim]

Thank you!

[@waterheaterservices]

By far the best

[@lisavalerio6299]

Thank-you Zimsjeep! I have watched many videos on this subject. Your video has the most clear explanation that I have watched & listen to. Arthur Smith, I completely agree with you!!!

[@bill57523]

Great video you mentioned everything I learned over 35 years in my home. My system still has the ancient expansion tank. I added a 3rd zone 10 years ago. Turning the gates valves on and returning 1/2 turn to keep the gate loose. Priceless info. Nobody tells you this. Info is handed down and hardly learned. Thank you.

[@jasonkichline2407]

I watched a lot of videos on this subject, this is the only one I liked. Explanation is on point! It covered everything I’m experiencing with my hydronic system. I’m currently having a very stubborn air lock where it’ll work for a few hours then stop working. The hose in the bucket technique is genius! The details on leaky valves and proper positioning is also extremely helpful. My home is over 60 years old so almost all my gate valves have that issue. Thanks so much for taking the time and posting!

[@sebouharakelian3586]

I cannot thank you enough for your video. I couldn't sleep the noise was so bad and I didnt know exacrly what I was doing. You explained it so thoroughly and for that I thank you!

[@fixitwithzim]

You're welcome, glad you found the video helpful.

[@lisalander7336]

Hi! My aunts home as inherited, was built in 1942. I went from Florida to Maryland for Thanksgiving. There was only heat in the living room and dining room. Needless to say, my Florida butt was freezing in the house. (30 degrees inside) So all back story aside, I wanted to thank you. My son and I watched your video, and then went into the basement and fixed the baseboard heating for the whole house! Thanks so very much for sharing this information.

[@wak6486]

This is the best video I've seen. I've watched about a dozen, the detail and simple instructions made this so easy to understand. I have a 2 zone system and I have loud gargling noise. I'm now about to purge my system thanks to you. Thank you sir for the great video 🙏🏾

[@ryhms8914]

Experts know their craft. Masters can teach it. Clearest video on this topic on KZbin. Thank you!

[@eduardherri7991]

I did this a few times myself without knowing exactly what I was doing. I just made sure the pressure in the system was alright. You video makes sense and now I understand better how it works. Thank you so much.

[@chriso5194]

Thank you a million times! I've been searching for hours for information and this is the best thing I found. Fixed the heat to my sons room.

[@fixitwithzim]

You’re welcome, glad you got it fixed!

[@dicklemieux7441]

I agree with the other posters who are complimentary. This was the 5th video I watched before tackling the job and it clarified everything the others only confused. Thanks for a good job!

[@Klis1517]

Finally!!! I've watched dozens of videos that could have helped me learn this process, but none of them had the level of explanation that this video had. I'm so thankful for you're ability to share all this information 🙏 I'm so glad I can stop watching hours and hours of boiler videos now lol.

[@hansangb]

Straight and to the point with pro-tips. What more could you ask for in a "how-to" video! Thank you

[@fixitwithzim]

Thank you, appreciate that!!

[@spindunbar9200]

Thanks brother, you're doing a great service.

[@nyla3235]

Thank you so much for this video. I am so appreciative of your being willing to help homeowners learn and understand their heating system as well as being able to do certain maintenance tasks as the homeowner. It is so frustrating to have people come in and always try to tell you something is bad and then you find out it was all a scam to get thousands of dollars out of the homeowner that were not required - even to the point of saying you need a new system when you don't. So, thank you very much for education us.

[@sintheticjesus]

thank you sir. i have been terrified of my heater for the last two years. you showed me it isnt that hard. i appreciate you for taking the time to make this video. well done.

[@joanlazcano2695]

Awesome video man! Simple to follow and right to the point! 👏👏👏

[@Incognitothegreat]

This was the best video on the subject that I have seen. You just saved me $150/hr to have someone come out. Yes, I was actually just quoted that today by a heating/cooling company.

[@fixitwithzim]

Awesome! Glad to help!!

[@user-md4di6yg2p]

Thanks a boat load! Checked a number of videos on this subject, and yours actually made sense!

[@iankantian]

Total explanation of every concept behind what you are doing. Love it.

[@JillianCastaneda]

Thank you so much for this video! My husband and I are first time homeowners and had never lived somewhere with baseboard heating until we bought our home. We were getting worried when we started to hear all that noise coming from the heaters but your video popped up when I was searching on what could be causing it. Took us all of 15 minutes to fix after watching your video, no noise since.

[@fixitwithzim]

Wow, that’s awesome!! Nice work! So happy you got it fixed and learned a new skill! Enjoy your new home!!

[@kmarks66]

Besides being an excellent explanation for how to bleed the system, it's just an overall great video. Very informative, no time wasted, no nonsense yacking. I just bought a house with this kind of system and I wasn't familiar with how it worked. Thank you for posting this!!!

[@fixitwithzim]

Thanks a lot…appreciate the kind words!!

[@tomdigiulio9578]

Such a clear and detailed explanation. None of the other videos I’ve watched explained it in such easy to understand terms.

[@minnehonk]

thank you so much for simplifying this procedure i recently had to drain the water from my house in Maine during January due to a furnace malfunction, after repairing the furnace I immediately started to hear air in the pipes and the expansion tank after turning on the boiler, reopening the zone valves. thanks to you I have the knowledge to purge the air from the system without calling a furnace repair man

[@bobbyw9046]

Followed your tutorial yesterday after replacing the expansion tank, automatic filler valve and pressure relief valve - worked like a charm!

[@fixitwithzim]

Excellent, glad to hear the video helped you with your repairs!

[@ChadAmI80]

Assuming you had to drain the entire system in order to make those replacements. I also need to replace teh expansion tank on mine, but there are no shut off valves for my system anywhere. It literally connects to the water main. There are no shut off valves to the entire hydronic system. I need to shut my entire house off and then drain all of my plumbing and the entire hydronic system so i can make the repairs.

[@maxlee6676]

Concise, but thorough. Almost called a plumber because of gurgling even after using the little air bleeders, but this procedure took care of the noise! Showing us not to let the valves get stuck open as well as to cap off leaks gave me a peace of mind for some reason lol. Thanks much.

[@jaked5474]

Excellent tutorial. Clear, no-nonsense explanation of a somewhat complicated system.

[@birdsnesttwentyfour]

probably the most helpful, to the point, enjoyable video on youtube.

[@dennisscanlon2553]

Love when the "why" is explained along with the "how". Great video - learned alot more than I set out to...always a good thing. Thanks!

[@fixitwithzim]

Thank you for the kind words and glad you liked the video!

[@Chrismasfann89089]

@@fixitwithzim help!!!!? My rads wake me at night !! I recorded the sound I've had multiple people look at my system .....it sounds like a sledgehammer hitting the rads... It's doing it in 3 of the 6 we have .... Any ideas. Our last resort is pulling them and trying to clean them out.... I've drained the system. Bled the rads multiple times. I dunno what to do it's driving me nuts

[@porterdor39]

Great video I also have a 3 Zone and I have no problems but I am going to do it your way summer time. I learn a lot.Thanks so much

[@Andy-wz4db]

I've looked at a few videos and I could not understand any of it. But you my friend made it so simple. Thank you so so much my entire house is warm

[@jaycburke]

Just wanted to add a heartfelt note of thanks for demystifying this process. Took one try, one zone, and voila - heat in our room! Thank you for explaining it so clearly.

[@TeslaBoy123]

2232

[@selmaraj]

This guy is ah master professional in his trade. I totally got your message, my wife got your message, delivery was on point. I appreciate your video and now I am fully heated. Thank you very much. Happy holidays

[@fixitwithzim]

Wow, thank you so much for that. Truly appreciate the kind words and happy holidays to you as well!!

[@andrescj3404]

Thank you so much! You make this look easier than it is!! Really appreciate the time and info you put in this video! Ps. Keep them coming!!

[@fixitwithzim]

Thank you, appreciate that! Easy stuff, doesn’t take a lot of knowledge.

[@kenneththornton4597]

Never seen this down south. I moved to PA and have this in my house. Top floor won't heat and had some pipe hammer going on. Great info in this video. Extremely well done, descriptive and not overbearing. Definitely a sub!! Keep it up.

[@fixitwithzim]

Thank you so much...appreciate that!!

[@allenespinal4950]

Extremely helpful! Thanks for the details!!! Saved me a plumbers bill for something so simple.

[@arthursmith643]

Best 16.50 minutes I’ve seen on this subject. Thank You. I heard noise in my system now I know exactly what to do.

[@lukez1729]

16.24

[@lisavalerio6299]

I completely agree with you Arthur Smith. The most clear explanation I have ever heard.

[@janieder]

This fixed my system and I learned about my fill valve. It saved me some coin and warmed my house a day faster than the service people could get here. Thanks!

[@fixitwithzim]

Great!! Thank you!!

[@bg767]

The best explanation and directions on YOUTube , absolutely great 😊 thank you for your detailed help !!!

[@midnightsocean2689]

BLESS YOU SIR. This video saved me having to deal with the heater service guy again. Mine was a little different in that the valve handles were shaped different and I had to make sure to set the relays into the manual "open" position to let the water flow but it was all the same concepts as you described. Thank you!

[@fixitwithzim]

Nice work!!

[@jaybee1930]

I have two zones do you have to open the both of the zone valves while purging the system?

[@fixitwithzim]

@@jaybee1930 do one at a time

[@voiceofREASONS]

Great vid. My crazy ass old house looks nothing like your nice neat system so I don't think I have the same situation. Regardless, nice work man. Thank you

[@annekonopka5470]

The most thorough video I’ve seen on this subject. Thank you for explaining it so well!

[@fixitwithzim]

Thank you so much!!

[@oscarbanderas1260]

The best breakdown of boiler system and easy details.. he knows his stuff !!

[@carlrabe4384]

Thank you so much! You explained theory of operation fantastically! It really helped me out a lot today!!!!

[@fixitwithzim]

Excellent, happy to hear that!

[@ptyptypty3]

that was AMAZING!!... thank you... I have the identical Furnace/Boiler as in your video... I look forward to checking out my system which is a 2 zone system... I think my Pressure gauge shows 15 psi... the furnace has worked fine so I guess 15 psi isn't too high.... THANK YOU FOR THIS VIDEO !!! :::

[@skiskate4food]

Great explanation, a long winter without the sloshing and whooshing, much appreciated!

[@williamdyckman9704]

I used your video to purge air in lines from oil fired boiler. It worked very well and I want to thank you for saving me $$ !

[@hluizpresents]

This absoloutely warmed and saved my CHRISTMAS in my NEW house today! Appreciate this video!

[@tomgiovanni5885]

Thanks for posting this. My system is overdue to the point where it sounds like water rushing through the pipes instead of the usual pings and knocks.

[@Chrismasfann89089]

Please help my rads are hammering bad every couple minutes they hammer. Sounds like a sledgehammer hitting them all day and night. Any suggestions would be greatly appreciated. [e-mail]

[@dustinmesrobian9702]

I dont normally comment, but you do a good job at covering all the details that are very crucial. I work in trades as well, and I can tell you know your stuff. I’m replacing a friend’s expansion tank and needed a good explanation on the system. Other videos suck at explaining. Good work

[@edwardyoung5644]

This is a great instructional video for many with baseboard heating systems that need to be purged to get the air out. Great job. There is one of your statements that I disagree with… and I feel that it is very important to make a note of herein.. At about 10 minutes and 25 seconds you state that "you do not want to have a relief valve discharge because once it opens up it will never close again." THIS IS A DANGEROUS STATEMENT to be telling the DIY community. If you read the instructions that come with that particular relief valve, it clearly states that you "MUST OPERATE THE RELIEF VALVE ANNUALLY" to be sure the passageways are not blocked. There are three things that can happen when you operate a relief valve. 1. The valve will not discharge any water at all because it is stuck closed. That is not a safe condition and can cause a boiler explosion. You MUST NOT OPERATE that boiler until there is a working relief valve installed. 2. The valve will open and release water as it should, then the valve will attempt to close and may leak. You can try to clear the debris that is keeping the valve from closing 100% by operating it again and again until it seals completely. If it does not seal completely then you need to replace it. 3. You operate the relief valve and when you release the valve handle the valve closes and the water stops flowing. I find this happens about 75 to 80% of the time when you operate the valves annually. In all three outcomes, you end up with the knowledge that you are operating a safe boiler in your home. NEVER TELL PEOPLE NOT TO FOLLOW THE MANUFACTURER'S INSTRUCTIONS WHEN IT COMES TO RELIEF VALVES.

[@akusantafe]

Agree! This is a superb explanation! Presents all essential information about the system and the purging process in the most understandable order.

[@fixitwithzim]

Thank you!!

[@fixitwithzim]

Remove air from you heating system, save $$$ - do it yourself!

[@mrchuka]

Concise, and delivered with authority. Fantastic video, many thanks!

[@knightofthelivingdrones2646]

I have been maintaining my boiler since 2004. I have not had air issues until this year. This is very through and helpful! I only have 1 zone with bleeder valves and that was added during a remodel. I had no idea how to purge the other zones. Thanks for making the video!

[@fixitwithzim]

No problem and I’m happy to hear you found the video helpful!

[@TheNYgolfer]

Good info. I wouldn't however recommend turning the fast fill lever to max pressure. Good chance the inexperienced home owner will cause the pressure to rise too high inside the boiler, causing the pressure relief valve to open. Most importantly though the procedure of turning the max fill lever to it's maximum can be very dangerous if you don't know what you are doing, or you forget to return it to it's normal position once done bleeding. Why? There have been cases of pressure relief valves failing to open and boilers exploding due to high internal pressures.

[@SparkRight]

If you watched the video he explains that and makes sure to mention the importance of shutting it off and the pressure being too high 🙄 😉

[@shishaojie5407]

The best I've watched this whole afternoon. Thank you very much!

[@raphaelsanchez4797]

Excellent, easy-to-understand, and helpful video. Thanks!

[@LucasuscaCipriansusca]

So clear, short and on the subject. Very explicit . Thank you.

[@fixitwithzim]

Thank you!!!

[@kevinhockman1841]

This is the only video on this topic to watch. Perfect! Thanks.

[@fixitwithzim]

Thank you!

[@timothychristian8730]

Great video! I couldn’t sleep last night listening to gurgling noises and your video was the best explanation! Thanks again!

[@niceday8888]

Thank you so much for such detailed, step by step explanation! Got the air out of my heating system. Liked and Subscribed. Also had my husband and son watched this video multiple times, saved and liked. Cannot thank you enough!

[@fixitwithzim]

That’s great to hear and thank you for the sub! 👍🏻😁

[@danilomendoza7426]

I just want to tell you this is the best video I ever seen. Thank you for sharing!!

[@fixitwithzim]

Thank you, appreciate that!!

[@KrumpyCat]

This is so good thanks. I have done this a few times without all these knowledge and sometimes it works sometimes bit doesn't, now at least I know where I screwed up.

[@akarimov357]

An excellent "how-to" video tutoring. I knew the theory and you showed it in practice. My mission is accomplished :) Thank you very much!

[@sptrsttradr4918]

Thanks, good video! Whoever did your boiler install did a good job by putting in valves and drains on each zone. My installer wasn't so nice...

[@andysantos8286]

Thank you so much! My house was completely cold and now is good. 🎉❤

[@jeffhopkins979]

Thank you!!!! I was trying to refill my system, and I was failling miserably with too much pressure in my system since I was using the fill val improperly until I found your great video. Thank you again, that bucket trick is a great idea!

[@danmccurry3810]

Thanks for taking the time to post you went over so much helpful information and saved us tons of money!

[@fixitwithzim]

Great you hear! Thanks for taking the time to leave a comment.

[@cranstonwilliamsworth9644]

Best tutorial on purging air. Thank you!

[@Southpaw07]

Wow !This man knows his stuff should have his own hvac school. Hands down the best detailed explanation on the net . thank you!

[@fixitwithzim]

Thank you!! Appreciate the kind words!!

[@joem9380]

Ty. Nice, easy, tutorial. You boiler water is actually pretty clean. Especially now.

[@graniteforestdojo1372]

Wow! You, sir, are a superb speaker. I don't think I heard an "uh" or "um" once, and you were just free-thinking while you worked! Oh, yeah-and super helpful, too! My house is 45º right now, but I hadda take the time to write that. Many thanks, and brilliantly done.

[@firesurfer]

THANK YOU! THANK YOU! THANK YOU! THANK YOU! I have 2 radiators in storage areas that would be a pain to bleed. If I had to move all that stuff, it would take several hours to move, and then replace. Bleeding the entire system at once is a life saver. I had a couple of leaks underneath concrete. It's bad enough to dig it out.

[@dennymarreesr6187]

Thank you for the perfect video! You did an excellent job of explaining how and why you’re doing each step! Thank you,Thank you,Thank you!!!

[@davidkantrowitz1224]

Hey Zim, you may have saved me countless dollars by posting this video! I tried everything after our upstairs hydroponic baseboard heaters stopped working. While I tried bleeding the air from both the radiators and the spigot, it was using a garden hose and a bucket as shown that actually worked! It's been 24 hours and the upstairs is still nice and toasty. Hopefully the repair will stand up to time.

[@peters972]

That saved me $145 and 3 weeks of waiting which is what it took to sort out last year. Was also quite fun to do to be honest. Thank you so much!

[@fixitwithzim]

Awesome!! Glad you got it fixed yourself...and for free!!

[@vitk5464]

This is the most clear video I have seen on KZbin. Thank you for sharing this with me. Our local HVAC charging $75 just to show up. You video is great!

[@fixitwithzim]

Thank you...Glad to help!

[@proverbs2life]

Thats a good price too

[@rkalbright4574]

New home owner in the NW, first time working with hydronic baseboard. Thanks for the vid, best instructional one on yt & most similar layout to my system

[@fixitwithzim]

You’re welcome! Glad the video helped you out!

[@timphree630]

Great job on this video good edits concise and thank you for all the detailed explanation. well done!

[@JOEZEP54]

I do a lot of my own work & always looking for procedure & tips. This video gives a very clear explanation. Also not turning the valve all the way to open position is a tip many may not have known of. Nice job BIG .👍. Stay safe, Joe Z

[@fixitwithzim]

Thank you!!

[@NavinLuke]

Thank you so so so much. I'm a new home owner, 26 who works in tech and doesn't have much experience with DIY fixes. I have an old home with an older boiler with an expansion tacked on just to make things more confusing for me. I did tons of research to try and figure out how to bleed my boiler and this was the one that finally helped me figure it out! The explanation of why you need to shut off the valves before it gets to the pump was extremely helpful! Started clearing the water out and damn thing looked like a hot tub it had so much bubbles in it.

[@fixitwithzim]

You're welcome bud! Mine looks the same every now and then. The process should be done at least once a year to ensure your heating system is running efficiently. Real easy stuff - no need to call a pro!

[@lekamyballs]

Definitely took the time and effort to think about how people don’t just automatically know about different names for different valves and how the system works and I gotta say you have the best how to video I’ve looked at others and they confuse you more then they help Thank you for your video god bless 🙏💪💪

[@fixitwithzim]

That’s great to hear!! Thank you so much!!

[@joehealey9173]

Thank you Zim ! Followed the steps and now my boiler is alive again.

[@fixitwithzim]

Awesome…nice work 👍🏻👍🏻

[@joemulholland5697]

Excellent explanation of purging the air from a closed system. Newer hvac techs should watch this before servicing residential customers. Nothing against newer techs but they mostly seem to be forced air systems more than boiler systems. Good job! 👍

[@davidfusco6600]

A very informative video, no cussin’ easy to follow, right to the point. Thanks!

[@fixitwithzim]

Thanks!!

[@dkbkmk01]

Very well done! Clear and easy to understand. Thank you!

[@previousadvertisement6379]

I am extremely indebted to you! You helped me understand this so well and you’re a natural and talented teacher! Thank you immensely!!!!!!!

[@fixitwithzim]

Glad I could help, really easy stuff once you get the hang of it