Furnace Parts and Functions Explained

Furnace parts and functions or furnace component identification. What each part's name is and what does it do. For anyone who needs to know the name of a furnace part, in this video I go over what every part in the furnace is called and how it works. So if you are not sure what a certain furnace component is called or what it's function is, this video is for you :)
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📝 Furnace Parts Reference List:
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Goodman 80% Inducer Motor: amzn.to/2JtWMRy
Goodman 90% Inducer Motor: amzn.to/2Q8nd1Z
Trane 80% Inducer Motor: amzn.to/2SyH4Jo
Trane 90% Inducer Motor: amzn.to/2Q6b8u7
3" Hi-Limit Switch: amzn.to/2Svmg5j
Small Hi-Limit Switch: amzn.to/2Q2vtjU
Honeywell Gas Valve: amzn.to/2yGvB20
Round Digital Non-Programmable Thermostat: amzn.to/2JsIsc2
Basic Honeywell Programmable Thermostat: amzn.to/2JqEjFy
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This video is for educational purposes. All appliance and HVAC repair work should be done by a trained professional. Word of Advice TV is not responsible for any possible damages or injuries caused by the use or misuse of the provided information.
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#wordofadvicetv #furnace #heating #hvac #airconditioner #airconditioning

[@EliteCycleWalkWindsorCanada]

The best video on the topic. Everyone who buys the house needs to view it at least once in his short life. Greetings from Pakistan.

[@raulrobles2961]

As a student I was struggling in learning this trade in school. when i watched your videos everything I didn't understand made sense to me right away. I really appreciate you putting these videos and the quality of information you have in them. I can't thank you enough!

[@diquanhorton7130]

Yea i just got into this trade and he made hours of studying and hard to understand so simple to me less then 20 minutes lol

[@romel6502]

I’m in HVAC school right did u guys get taught the Bible too?

[@ralphdouros8097]

Very eazy to understand

[@user-hj3lh2zm1g]

Electricians have the easiest job

[@craiglis7868]

Wow! You explained everything in plain English that a non-HVAC person can understand. Thank you!

[@arayahailu8762]

Hi jay , I really regret wasting my time & money for attending an HVAC school , because I learned a lot from you & some other Techno geeks & applied it in my job . Because of the knowledge I got from you & others like you , now my employers think I invented HVAC system . Isn't that amazing Jay , I wish you healthy long life to help fellow tradesmen like me .

[@troyquintanilla5418]

just signed up for HVAC school started watching his videos to get a better understanding I feel very confident and comfortable about going thanks brother

[@flinch622]

You would be gobsmacked to know just how many "schools" exist solely to abuse pell grants. I almost went to one of these holes out of high school- thank goodness I avoided it - place set off my radar for whatever reason and just felt wrong. I worked with one of these institutional victims years ago, calling himself a "tech" - the dude could NOT read prints... which also meant he could not perform many specific isolations except someone else wrote a procedure for him. Supervisor kept him around only on account of there was enough mundane stuff with written procedures [or simple devices] it freed up time for others that were capable of troubleshooting the complex.

[@salmankhanmohmand9174]

​@@troyquintanilla5418 videos are paid or you are talking about KZbin videos?

[@Howie875]

As a retired HVAC tech I found this to be a very good video. The only thing I want to add is that a cracked or leaking heat exchanger can cause the rollout switch to trip and the burner/manifold system is actually designed to pull in a lot of air(called primary air] Which mixes with the gas so it has enough oxygen to burn efficiently with a basically blue, soot free carbon monoxide free flame with exhaust gasses that are basically composed of carbon dioxide and water vapor.

[@davidm7824]

I disagree about the exhaust gases. It is carbon monoxide and water vapor. Carbon dioxide only comes from animals including humans when they exhale during breathing.

[@Howie875]

@@davidm7824 You need to do some research because you are mistaken. Natural gas is the cleanest burning of all fossil fuels under the right conditions. These conditions are a proper air to fuel mix (called a stoichiometric mix) which results in what is called a complete combustion which means there is not any excess fuel or excess air in the mix. This results in a blue flame with combustion products of mainly CO2 and water. A rich combustion mix, meaning there is excess fuel and not enough air, results in incomplete combustion with a yellow flame full of soot and carbon monoxide. I have personally seen and been exposed to both these types of combustion products. Look it up.

[@brucejandrey750]

Finally a decent video on gas fired furnaces. Learned more than the last 15 I watched.

[@vandal280]

I'm starting a Gas Furnace Troubleshooting and Repair training class in a week, and trying to study up before it begins so I'm not completely clueless on the first day. Your videos have been so informative and easy to understand. You have a gift for teaching! Thank you for helping me get ready to dive into HVAC

[@brettlafleur27]

Teaching really is a gift, if I had to ride along with this guy it would be an honor.

[@janitorialjargon2411]

I go to school at RSI in Phoenix Arizona, and your videos helped me pass Phase 6 which focuses on comfort systems. Your channel is the best thing ive ever found.

[@WordofAdviceTV]

Glad to hear that Adam! Thanks! Good luck with school!

[@johnnys3602]

Hey Adam, reach out! So did I and I continue to watch his wisdom here!

[@rxh1013]

Did u graduate. I'm in school now and am curious how you are doing now

[@rxh1013]

Career wise

[@Tony_Dellechiaie]

This video is the most helpful video I have found yet. I just started a job as an HVAC Maintenance tech with zero experience and zero school. I just started my 2nd week of training and really trying to put in the work to thrive in this field.

[@chrisk1180]

This video and you're 10 most common problems are 2 of the best videos on this topic I've ever come across. I'm in school for my gas 3 license right now, you're videos teach just as much if not more than my entire cirriculum

[@brettlafleur27]

I like how he doesn’t go fast and how he explains it so you can understand it. If it seems confusing it’s because the topic is new to you.

[@kenmaier6870]

of all the furnace related video's your's is the most thorough and informative - Thank You !!

[@WordofAdviceTV]

Thanks Ken!

[@jasonhadley3604]

@@WordofAdviceTV ko

[@jasonbrendel8667]

I am pissed off

[@Pubstomper23]

This video is a lifesaver you’ve blessed many techs out there I’m sure 👍🏾

[@RacerX707]

One of the best 15 minute educational videos I've ever watched. I appreciate you taking the time!

[@WordofAdviceTV]

Thank you! :) Glad you found it useful!

[@rubensahak9178]

Thanks to you I was able to diagnose failed igniter and replaced and now furnace working great saving me minimum 600 repair with labor.Cost me 50dollars for igniter! Thank you

[@nerdonabudget]

We just got some snow the past few days and my furnace is having issues so here I am haha. You are great at teaching the names of all the parts, and your explanation of how furnaces work is very easy to understand. Great video quality too, very clear and easy to see everything. I had no idea what any of the parts inside were but now I have a much better understanding. I've got a 90% furnace and it started leaking a fair amount of water right around when the temperatures got below freezing outside and we got a few inches of snow, because like you said, there's condensation in the second exchanger. Seeing a lot of rust where the inducer connects to the PVC pipe, right around the clamp ring as well, from your explanations though it doesn't seem like that pipe should be seeing that much moisture though.

[@FlyEaglesFly19111]

90 percent furnaces should be taken apart and the inducer motor rinsed out once a year before heating season. The white condensate trap box taken and also rinsed out. Maintenance is always needed every year. Heating and cooling season.

[@kennyr4051]

I learned more in this one video than I did in college. Thank you so much.

[@WordofAdviceTV]

Thanks Kenny! Glad you liked the video! :)

[@hailthesuccubus5764]

Kenny R duuuude same here!

[@joeyxu5887]

that's so true I learn alot from here also I share his video to my family and friends.

[@WordofAdviceTV]

@@joeyxu5887 Good to hear the videos are helpful! Thanks for sharing! :)

[@_Wai_Wai_]

Yea man.... in college, the professors/ instructors go too technical and not enough hands on. Or sometimes they just get real impatient, and call things by some weird name, without explaining it.

[@marshalwhitehurst7358]

CREDIT GIVEN WHERE CDEDIT IS DO ! GOOD JOB on your videos ! As a Master Plumber for 40 years its REFRESHING to finally hear someone EXPLAIN CORRECTLY your HOW TO videos ! GOOD JOB !!

[@WordofAdviceTV]

Thank you! Means a lot coming from someone whose experience alone is older than me heheh :)

[@indypicker6517]

I’m a new home inspector and HVAC is one of my weaknesses. This was a very informative video. You did an amazing job describing the parts of the system and how they work. I’ve subscribed and I hope you have a similar video for the A/C unit. By the way, I notice there is a gas union inside of the unit. I was taught that should not be inside because it is susceptible to leaking. Great job.

[@Boojyman]

Every gas furnace has a union line inside

[@PH-md8xp]

I now know more about how a furnace works than I ever needed to or wanted to. Great video though, I’ve always been fascinated by how things work.

[@joeducosin3852]

Best furnace troubleshooting video on KZbin - Thanks!

[@somap8380]

You are a very good teacher; pronunciation, tone, and simple language used, even a person like me whose first language is not English can very well understand.

[@fortunatedad7695]

I can see why you don't have to have a regular job anymore and can live off making these videos. Your videos are my go to for pretty much all HVAC questions. Thanks for the video!

[@josephobrien942]

Great video hands down the best. Quality of video, description, narrative top shelf Thank you

[@1Chikala]

Iam an Hvac apprentice and I will say I learn alot from your videos, thank you man keep it up. 👏👌

[@donaldphelps7867]

Hey bro I really appreciate how u speak and explain everything very slowly so a new guy can absorb what ur teaching . Please keep putting out or refer me as a new guy to basic info that will help me get my foot in the door to an havc co . Thanks

[@jamesleroy7752]

Thank you so much for the video. I was at a loss on my furnace and inches from calling in a pro. Long story short. My burners would not light. I paid $95 American dollars. For a gas valve no help. I spent $50 on a HSI that was getting red hot. Spent $35 on a manometer. Spent hours watching videos and on forums and was convinced my gas company was cutting the natural gas with Helium or argon. I was stumped and could not figure out why it would not light the burners. Oh I forgot the fact that I could light the burners with a match all day and the water heater worked perfectly. I have never seen a burner on the back end. I figured they were just tubes. When you pulled your out I had to look at mine. My Luxaire furnace is a tad different as I'm sure you know. I took the whole rig off and OMG! WTF! The back of the burner was all caked with rust. A few minutes with a wire brush on the end of a dewalt and a pipe cleaner or 2 later. I put everything back together and now my family are enjoying heat. Thank you for your video!

[@WordofAdviceTV]

Oh man! Sorry to hear about all the troubles you had to go through before you found the problem. Glad to hear you got it fixed and my video helped! Thank you for leaving a detailed comment, stay warm!

[@Robnord1]

Great video with good lighting and crystal clear explanations. My work often involves LP mobile home furnaces of about 57K BTUs utilizing old school pilot light ignition and the occasional HSI + combustion blower, but no draft inducer such as these residential units. This was enlightening. 👍👍 Thank You!

[@nicb.1411]

Thank you for making this video, it would've helped me a lot when I was at school. My teacher made it more confusing than it actually is and I think it's much easier and faster to learn this stuff by seeing it than reading of reading about it in a book. You're the only person that makes decent videos related to HVAC. I get really tired of the old guys in the trades upload videos in 240p and try to teach us this stuff.

[@WordofAdviceTV]

Those older guys know much more than I do, that's why I try to stick to the basics :) But yes, I agree! Good quality videos is a nice bonus! Once again, thanks for watching and commenting!

[@roobear5357]

The 80% gas furnace is a marvel and you do a great job explaining it. I enjoy all your videos.

[@1BadMofo]

You’re the man bro I started a hvac apprenticeship and I really love the job and can see myself doing it for a long time but I was having trouble understanding some things your videos really help so thank you

[@mohammedehsan4410]

hi everyone. I am handyman and always follow this young gentleman here . he is is good briefly explain everything. also understand able. thanks him with best wishes

[@MathIsGreatFun]

Your videos are fantastic. Thank you. I have learned a lot from the wisdom you share. I am not in HVAC, but I really wanted to learn as much about AC and heating as possible, particularly since I live in a hot part of AZ. You are thorough, yet to-the-point. It is evident you are passionate about your trade, and it shows that you are an expert in your field. Thanks for making these for us.

[@aarongray503]

You are the only channel I make sure I get notified for new videos. Thank you.

[@WordofAdviceTV]

Thanks Aaron! I will try not to disappoint :)

[@juanjamaica8871]

Hello Jay.... very very instructive videos of yours... now at class i don't seat and stay quiet, you really have a gift and thank you god bless

[@gkoumoutsidis]

Thanks for taking the time to do this. Great production and explanation. Have watched a few of your videos and all are really good.

[@MrGotbail]

You are the GOAT of HVAC

[@jackpine4347]

Terrific video explaining a gas furnace and its components - well done! Our Trane furnace uses two machine screws to fasten the single front cover to the furnace chassis. I like how yours is executed, so much easier to get access for servicing the unit.

[@vega25transam]

You are my hero! Thank you . I was able to get my Furnace back up and running.

[@mike7243]

Man your good. How old is that furnace? It is the cleanest one I've seen. I trying to learn how to troubleshoot and maintain my home furnace and your videos are very thorough. Thanks for putting this together.

[@habibi8964]

I’m currently in HVAC school and I can’t thank you enough for all these vids man

[@rodhoutx]

Great explanation of the pieces! I think it's so neat that the technology for the 80% AFUE is still the same it was 20+ years ago since the draft inducer was introduced. My dad's furnace installed in 1995 still has these exact components. I've used your videos to troubleshoot his furnace. Even replaced the flame sensor since it's so cheap (unfortunately that wasn't the problem). Called an HVAC company out, and they went through the same steps you've described in your videos. They concluded it's the circuit board (which the little diagram kinda says too -- if all these steps pass and then it still doesn't work, replace board). The board costs a couple hundred, and they wanted more than 3x that amount, which he even said is what most companies do, so I'll just try it myself at this point since I found an exact replacement.

[@williampaul8979]

Great video! Straight to the point, not long and drawn out. Extremely informative, especially for aspiring techs. Thank you

[@WordofAdviceTV]

You're welcome! Thank you for watching and commenting!

[@davejohnsonnola2758]

Nice concise and well edited. I don't see many furnaces but instead have started to open up a wide variety of commercial cooking equipment and many of these same components are represented. Thank you. Will subscribe.

[@WordofAdviceTV]

Glad you liked the video! Thank you! :)

[@EricM9189]

I learn more through your videos than what I did while in trade school..

[@WordofAdviceTV]

Thanks Eric! Glad to hear my videos are helpful! :)

[@woof3598]

i was tring to figure out how the furnace water drain worked, but good video, I learned a lot

[@vernroach3413]

A very good video...Simple, easy to understand and explains the components very well....The flame rod is as you said, the number one cause of no heat and erratic or short burn time.....Close, is the nipples on the draft inducers, usually blower side, get blocked up with crap...No signal proving rotation...A very common problem as furnaces get older, and are not serviced regularly....Thank you for this video...I will use it as a teaching aid.

[@WordofAdviceTV]

Thank you! I'm happy to hear that you approved the video :)

[@hvacserviceinstall2892]

That's the cleanest old American Standard furnace i've seen! Great video

[@peterwatson5847]

Thanks for keeping it real, you are very educated, thanks for your teaching.

[@insylem]

The capicator helps start the blower by causing a phase shift in one of the field windings of the motor.

[@genechicago4806]

Your videos are very informative! Thank you for sharing your knowledge.

[@larryallen8898]

I love your videos..they're very informative..makes me feel like a HVAC expert..thanks

[@pedrotinoco5821]

IT INTERESTING YOUR CLASS, TANKS GUY.- FROM CHICAGO IL.

[@gilliecalifornio9537]

It’s always so nice to have the Split in the garage or closet and not in a attic, especially during summers. I always enjoy watching your videos 😎

[@christianruvalcaba7788]

Well, I usually don't work on furnaces unless it's winter time. In Texas we usually don't use our furnaces gor heat.

[@larryd9068]

Nice presentation, clear explanations, easy to follow with out any stupid music or exaggerated enunciations! Thank you! Also since you asked, you forgot to mention the step down transformer attached to the external metal junction/switch box. Perhaps its for AC contactor or thermostat? 😉👍

[@WordofAdviceTV]

Thank you for pointing that out! That transformer is for my whole house humidifier.

[@zeekzeek3719]

Your video's are very clear and understandable. Thank you so much for the clear demonstration.

[@surinderchawla3146]

Excellent video ! Very useful in understanding the basics of a gas furnace ! Thank You !

[@purnatamang3584]

I learn a lot from this video. thank you.

[@Kaleckers]

This was one of the best KZbin vidoes I’ve ever watched

[@jamestyrer6067]

Very well explained. Allitle scary on how many components have be working properly in order for a furnace run

[@Twoface0233]

Very informative, best furnace sequence of operation video.

[@waterheaterservices]

A much needed lesson for many of us.

[@azizurkhan1153]

Excellent vedio presentation with details of furnace components. I never have any clue what is inside furnace. Very v

[@huzaifahpanchbhaya175]

Im an HVAC Student and this helped me so much!!! Thank You

[@WordofAdviceTV]

Glad it helped! Good luck in school!

[@dominicesposito4394]

Word of Advice TV same here 👌🏿

[@teeprzygoda865]

I have no idea how a heater works but this was very informative and helpful. Thanks

[@intelin123]

I learned more in this video than at my job. Thanks man

[@WordofAdviceTV]

Glad to hear the video was helpful! :)

[@lkw5699]

Thanks for explaining. I'm a renter and new to gas furnaces. I was looking for a metal vent on my unit but after watching this learned mine is pvc afterall because it is high efficiency.

[@WordofAdviceTV]

Glad to hear the video answered your questions! Thank you for commenting!

[@mchaudry9811]

Thank you for these videos. You are one of the best Hvac person out there. God bless.

[@7shane4561]

Super helpful - I'm going to replace my old furnace this summer and your videos and great for the planning and preparation!

[@richardmcnally5998]

Best video on gas furnaces by a mile. Great job!

[@faisalahmed4321]

great video simple explanation i am going school to get my hvac license ,,,,,it will help me when i will reach this topic.

[@TheGibby3340]

Very well done indeed. Level of detail and speed of delivery is perfect for an overview. BTW... A horse walks into a Tavern...and sits downs at the bar...the bartender says ..."So... why the long face"?

[@WordofAdviceTV]

Lol! I didn't expect you to go right into the joke like that. I wonder what feedback I'll get if I use that one at the end of one the videos heheh Thanks! I'll add that to the list of "ending material" ;)

[@ernestscarrizales288]

Thumbs up on the washer/dryer!! Great video, thank you.

[@lb89546]

Right on, man, simple but instructive! Keep up the good work.

[@miriamtorres6795]

Thank you you are very good. You take your time and explain everything perfect. Thanks again.

[@mimizeledon1131]

I am really enjoying and learning a lot from your videos. Very interesting. Thanks!

[@gregbiegel6468]

Thanks Jay. You're Awesome! Saved me again. luv your channel and the service you provide to diy's

[@loralubimaia2783]

first time ever randomly clicking on a video and seeing someone I actually know in real life!!

[@jasonbyers9431]

Thank you I was able to find a resettable switch that was the problem. (I cleared out the dead bugs that were in the burner area).

[@bigbonds]

You are awesome! I wish you were located in Virginia because I would recommend you to all my clients.

[@starshipgus8578]

Great video,I have a similar furnace and I knew some of the components,but now I know about all the safety sensors,I feel better knowing my house is not going to blow up.LolThank you 👍

[@marysayhuh1]

I like all you said very informative, I also like Umesh washer and dryer, God Bless You.

[@hugogarcia7574]

Better than a teacher for sure. Thanks

[@kennethcurrie1225]

Awesome video, man! .. Very in-depth. You know your stuff, that's for sure! I will be following you for all my HVAC needs, thank you.

[@syedjan7407]

Thank you again I will not join any online school to learn HVAC I can see myself to learn from you. I do practically work with installer twice a week.

[@Frederick-sg2dc]

Finally someone who clearly explains!

[@maryandkevinperkins1621]

Hey thanks for all you do!!! You made me a very good tech. Us tech need this additional education.

[@ebimotamed6231]

One of the best video in this field

[@CH67guy1]

What an awesome video! I’ve learned so much! I have a 6 burner Trane 90% efficiency. Quit heating. I cleaned the flame sensor and condensate trap. Next I discovered the flame rollout sensor is blown. Non resettable. What’s the cause of this sensor blowing? Yes, I’m aware… too much heat. But something needs cleaned. Heat exchanger needs cleaned I think. Not enough airflow through it and there’s literally a flame rollback and over temperature condition that blows the sensor.

[@ulicessolis3689]

THE BEST VIDEO IN MY OPINION, l liked and subscribed

[@franciscomorales8102]

That was very informative and funny! Talking about the Amish washer!!! 😂

[@diverm2371]

Awesome video.100% well done. Love your work. Thanks so much....

[@vesosobot4094]

Great job ... you’ve saved me hundreds!

[@shc9066]

Excellent video, great job. Yours is same as my furnace. In my case, the flat surface igniter is the number one to fail, especially in the rain season. The ceramics is fragile to break under high heat.

[@bobboscarato1313]

When taking out of its box, a new surface igniter should never by touched as the oil or dirt on your fingers can damage it.....

[@FOOHKENLIT]

Your're great at teaching love your vids keep em coming

[@mystique0417]

I've watched every furnace video out there and this is by far the most concise. Presentation and production value top notch.

[@WordofAdviceTV]

Thank you! :)

[@artocingerbub]

Very well explained👍 , gr8 instructor, thank you 👏

[@paullol7852]

Very good Video. Thank you, well done and I learned a lot.

[@jackshaw7488]

Thank you for many informative videos. I learned a lot from you. But I think you may need to post a video for how to troubleshooting draft fan (outside fan on the wall) which is the first device to receive thermostat signal.

[@richardlabat5357]

Thanks Great video - FYI-- Blow out air lines on air pressure sensing (vacuum) switches - Some of these air switches has two contact - one on the front one on the back .... check both! (I see this unit has two separate switches) yellow powers both switches - brown and orange are the two different outputs signals. Inducer housing pressure and collector box pressure (check square tubing vacuumed sensing signal). This may apply to your unit.