How to size HVAC Equipment?

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  • เผยแพร่เมื่อ 4 ธ.ค. 2024

ความคิดเห็น • 108

  • @troy3456789
    @troy3456789 ปีที่แล้ว +3

    My HVAC tech just asked me how many floor registers there was, and that was it. I would much appreciate having a complete estimate and homework on paper, to include labor and cost of each part. *Keep going Tad!*

  • @erichorton1440
    @erichorton1440 ปีที่แล้ว +5

    You should make books my guy. Especially on topics like this. Me and thousands of others would buy and benefit from it!

    • @TaddyDigest
      @TaddyDigest  ปีที่แล้ว +1

      Great idea I may do this

  • @richardguarneri4597
    @richardguarneri4597 ปีที่แล้ว +2

    Hey Tad I just joined I have been electrician for 45 years and have my state lic for Freon but always sub out duct work time to learn
    Thanks Richie G

  • @patricklewis5173
    @patricklewis5173 3 หลายเดือนก่อน +3

    Use manual J load calc

  • @deepcreek2269
    @deepcreek2269 ปีที่แล้ว +1

    Highly recommend using a thermal imaging camera like the FLIR DM284 for identifying hold/cold spots of infiltration/exfiltration around doors, windows, duct work, etc.

  • @Aa144511
    @Aa144511 2 ปีที่แล้ว +1

    I just joined. I’m a tech of 4 years and now learning how to properly size units and ductwork as I am doing a complete install in a buddy’s basement that he wants to have finished.

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว +1

      Thanks for joining
      If you are now a member
      Then shoot me an email
      Check out my video on how to build a duck system
      Here is my email
      tadfuller1@gmail.com

    • @Aa144511
      @Aa144511 2 ปีที่แล้ว +1

      @@TaddyDigest just sent an email!

  • @kenbloker8429
    @kenbloker8429 ปีที่แล้ว +1

    Great Video. Gonna upgrade get a little more info. Love the knowledge

    • @TaddyDigest
      @TaddyDigest  ปีที่แล้ว

      Awesome, thank you!

    • @TaddyDigest
      @TaddyDigest  ปีที่แล้ว

      Thank you so much for joining if you have not received my guides definitely send me an email tadfuller1@gmail.com

  • @dmana3172
    @dmana3172 6 หลายเดือนก่อน +2

    I live in 1920 sq ft. house. Is four ton unit big enough? I set the thermostat to 68 and it turned on for about five minutes to maintain the temperature, and is off for another 10 minutes. The humidity is about 45 percent low. Is it the right size? The temperature outside is 85 degree.

    • @TaddyDigest
      @TaddyDigest  6 หลายเดือนก่อน

      I would do a proper load calc but 4 ton in my area will do around 2400 square ft with standard insulation

    • @rogersiples3335
      @rogersiples3335 4 หลายเดือนก่อน +1

      A 4 ton will work up to 2400 sq ft.

    • @dmana3172
      @dmana3172 4 หลายเดือนก่อน +1

      @@rogersiples3335 so, is four ton big enough for my house?

    • @TaddyDigest
      @TaddyDigest  4 หลายเดือนก่อน +1

      @dmana3172 yes

    • @mumiaali4821
      @mumiaali4821 หลายเดือนก่อน

      @@dmana3172 no, you need 400 metric tons

  • @MarioGomez-sw1cz
    @MarioGomez-sw1cz ปีที่แล้ว +1

    I’m some what new to HVAC and want to learn more can you help

  • @maiha5287
    @maiha5287 หลายเดือนก่อน +1

    I have 1 bed room around 900 square feet I which one better if I want Amma ac & blushing

    • @TaddyDigest
      @TaddyDigest  หลายเดือนก่อน

      I dont understand your question

  • @AlexanderBell1847
    @AlexanderBell1847 ปีที่แล้ว +1

    If I install a modulating system where it is able to run 30% to 100%, does it help if I oversize the system since it's able to run as low as 30% ?

  • @gunnerolena6431
    @gunnerolena6431 7 หลายเดือนก่อน +1

    Hey i joined any tips on ductulatornsizing strategies

  • @mmmallory1649
    @mmmallory1649 หลายเดือนก่อน +1

    I have 2 floors, one of which is a basement. Each floor is about 900 sq. feet, so 1800 total. I've read that when calculating the BTU and Tonage requirement that you only use 1/2 of the basement square footage, thus reducing the total square footage to 1350 if true. Can someone tell me what size BTU gas furnace (80%) and A/C tonnage (14 seer) I'd need for my situation? I live in Zone 3, Virginia. 8 registers on main floor and 7 registers in the basement. Thank you.

    • @TaddyDigest
      @TaddyDigest  หลายเดือนก่อน

      You could use a sixty thousand b t u furnace

  • @georgeestrada106
    @georgeestrada106 2 ปีที่แล้ว +1

    Awesome video how do I become a member? I’ve interested in how to probably size up homes with round duct and what tonage I should use thanks tad

  • @borntorun100
    @borntorun100 ปีที่แล้ว +1

    Just subscribed. Would like to receive duct design guide. Thanks

    • @TaddyDigest
      @TaddyDigest  ปีที่แล้ว

      Join this channel to get access to perks:
      th-cam.com/channels/uMyjTVlkM4xZ5z_eSyoB1w.htmljoin
      Wanna learn more about hvac? Check out my hvac tips for technicians playlist.
      th-cam.com/play/PLVjetZt5xgenmO76adHwb2ctyeBIFKUus.html

  • @GIJENN
    @GIJENN 2 ปีที่แล้ว +2

    Tad.... Was such a pleasure meeting you at SOE. I am stoked about learning more from you. Would love to catch up with you about being a guest on my podcast....

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว +1

      Hey Jenn
      Glad you were there.
      I am excited for June.
      I would love to join you on your podcast. Send me some details. tadfuller1@gmail.com

  • @Safi.00197
    @Safi.00197 2 ปีที่แล้ว +1

    Hi taddy have questions how we control humidity with the help of air flow

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว +1

      Good question I will do a video about this

  • @patrioticgunner8034
    @patrioticgunner8034 3 หลายเดือนก่อน +1

    Do u need to measure the height to get the square foot ?

    • @TaddyDigest
      @TaddyDigest  3 หลายเดือนก่อน

      no
      just length times width

  • @simon2874
    @simon2874 ปีที่แล้ว +1

    Hi please tell me how do i become a member?

    • @TaddyDigest
      @TaddyDigest  ปีที่แล้ว

      Join this channel to get access to perks:
      th-cam.com/channels/uMyjTVlkM4xZ5z_eSyoB1w.htmljoin
      Wanna Learn more about hvac? Check out my hvac tips for technicians playist.
      th-cam.com/play/PLVjetZt5xgenmO76adHwb2ctyeBIFKUus.html

  • @erichorton1440
    @erichorton1440 2 ปีที่แล้ว +2

    I'm in HVAC school rn. Would those books be good now or should I wait until I understand HVAC more?

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว +1

      Hey Eric
      I would wait until you have a year or two in the field then start learning more.
      I used these books for my general mechanical contractor license test.

  • @TJ-22
    @TJ-22 2 ปีที่แล้ว +1

    Excellent video! In your opinion, do you the newer single stage units, with digital thermostats, tend to run for shorter cycle times, than the older units, even during the summer, in the south?

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว +1

      I would say that they run for longer cycles

    • @TJ-22
      @TJ-22 2 ปีที่แล้ว +1

      @@TaddyDigest Thanks. Some of the newer thermostats have a temperature differential of +/- 1 degree, some +\- .5 degrees.

  • @ericksanabria168
    @ericksanabria168 2 ปีที่แล้ว +2

    Would it work just by pulling the square footage from Zillow ?

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว

      Sometimes you can look on property viewer or zillow yes and find the square footage
      But to get the most update information it's better just a measure

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว +1

      Her Erick Here is full access I made this video available for you for 48 hours Thank you for joining I really Appreciate it th-cam.com/video/VevYWYaobSY/w-d-xo.html

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว

      Let me know if you have questions Also look at the duct sizing full video I made it available as well

    • @ericksanabria168
      @ericksanabria168 2 ปีที่แล้ว +1

      I watch the video on the duct size and it has help a bunch a lot stuff making more sense now

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว +1

      Awesome so glad you watched the video hope you have a great day

  • @Parabellum-X
    @Parabellum-X 5 หลายเดือนก่อน +2

    2:10 lmao He said, "Ding!", like some food was done in the microwave. lol

  • @felix4192
    @felix4192 2 ปีที่แล้ว +1

    Does the friction loss change depending on the type of material or shape you use for duct?

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว +1

      Hey Felix Thank you for Joining I want to help YOU. Send me an email. Lets connect tadfuller1@gmail.com
      I have a airflow design guide I can send you as well

  • @biblebloopers946
    @biblebloopers946 2 ปีที่แล้ว +1

    Do you have to measure your square footage if the homeowner knows what their square footage is? Or is this just to verify because they could be wrong?

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว

      I like to measure the square footage unless the home owner has the information if they have the information then there is no need to measure the square footage yourself unless you just want to be sure

  • @rejahmuhyi1592
    @rejahmuhyi1592 2 หลายเดือนก่อน

    Thank you.

  • @martinheatingcoolingmartin4693
    @martinheatingcoolingmartin4693 ปีที่แล้ว +1

    Hey it’s Gabe. With Martin Heating and Cooling.
    I’d like your advice and help on sizing a package unit. I really don’t want to mess this up given the situation and job. Should I become a member for your support?

    • @TaddyDigest
      @TaddyDigest  ปีที่แล้ว

      Hey gabe
      Yes become a member and I can walk you through it through my email.
      If you want phone number access you can do level four
      If you wanna see my sizing video check out level 3 member
      Then you have access to all my members only videos

    • @martinheatingcoolingmartin4693
      @martinheatingcoolingmartin4693 ปีที่แล้ว +1

      Ok. Thanks for the reply!
      I’ll look into those levels later, you provided a link to that already I assume?

    • @martinheatingcoolingmartin4693
      @martinheatingcoolingmartin4693 ปีที่แล้ว +1

      Busy day today, lol

  • @xxdatboixxxxx592
    @xxdatboixxxxx592 ปีที่แล้ว +2

    Ralph villela Riverside California

  • @jerrykysar9170
    @jerrykysar9170 4 หลายเดือนก่อน +1

    Good job

  • @ambulaikanneh7055
    @ambulaikanneh7055 11 หลายเดือนก่อน +1

    My name is A.V from Atlanta Georgia. I joined your members group. I need full access to your videos

    • @TaddyDigest
      @TaddyDigest  11 หลายเดือนก่อน

      Hey brother thank you so much for joining
      Here is my email I will send you a bunch of guides tadfuller1@gmail.com
      To have full access to all of my members only videos become a level three member.

  • @beardfootofficial
    @beardfootofficial 2 ปีที่แล้ว +1

    Hi Tad I commented a few weeks back about coming to CA to do an install, kinda half joking... but for real now, my buddy and I are building homes on the same property together and local companies don't know anything about mini splits, would love to see if you'd quote us on 2 multi zone mini split setups... What you think?

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว

      I would love to
      I will send you my email and let's get connected
      tadfuller1@gmail.com

  • @roqueherrera8471
    @roqueherrera8471 ปีที่แล้ว +1

    Are u charging fir the Levels?🤷🏻‍♂️

    • @TaddyDigest
      @TaddyDigest  ปีที่แล้ว

      Membership level 3 for full video 24.99 yes sir

  • @guycapilli546
    @guycapilli546 2 ปีที่แล้ว +2

    I am seeing everything upside down or backward!

  • @teresacampbell2120
    @teresacampbell2120 2 ปีที่แล้ว +1

    OK I have just bought a 985 sq. ft. single wide. Everyone is estimating it at 10,000.00 or more! I am disabled and on a strict budget. I live in Dallas Georgia and with my health problems I have to have air condioning. I have a 100 amp box and they say I have to upgrade and then the electrcians want to charge me 9,000.00 for that! Please help me!!!!! The system that is in it is 30 years old. Please help me!!!!!

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว

      Click the join button send me an email I will help guide you

  • @biblebloopers946
    @biblebloopers946 2 ปีที่แล้ว +1

    I'm looking it up right now and the manual J goes for around $150 on Amazon. Anybody know where I can get it cheaper let me know

    • @troy3456789
      @troy3456789 ปีที่แล้ว

      I found it used for 149.99, so there's considerable savings if you buy 500 of them.

  • @winstonwashington3970
    @winstonwashington3970 ปีที่แล้ว +1

    HiTad ,good video I would like to become a member I’m a plumber wet side HVAC and expanding into the air side of HVAC Aircondiction side of HVAC in my 2nd year of Jurior College HVAC courses and looking to learn more tips on HVAC

    • @TaddyDigest
      @TaddyDigest  ปีที่แล้ว

      awesome Glad to hear
      always learning
      here is the link to join
      Join this channel to get access to perks:
      th-cam.com/channels/uMyjTVlkM4xZ5z_eSyoB1w.htmljoin

  • @solonick79
    @solonick79 2 ปีที่แล้ว +1

    Would you be interested in sizing some equipment and or some duct designing for my company? All new residential homes, 3500 Sq/Ft and below.

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว

      Absolutely

    • @solonick79
      @solonick79 2 ปีที่แล้ว +1

      @@TaddyDigest great, lmk how to get you a print

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว +1

      @tadfuller1@gmail.com

    • @solonick79
      @solonick79 2 ปีที่แล้ว +1

      Perfect. Thx. Sent you an email with prints attached. Have a good weekend!

    • @solonick79
      @solonick79 2 ปีที่แล้ว +1

      Any progress with those prints my friend?

  • @bicebalu5831
    @bicebalu5831 ปีที่แล้ว +1

    I join from Solomon Islands 🇸🇧

  • @kiplynmckencie864
    @kiplynmckencie864 ปีที่แล้ว +1

    Nassau Bahamas

  • @bicebalu5831
    @bicebalu5831 ปีที่แล้ว +1

    I join

  • @vidalrodas5646
    @vidalrodas5646 ปีที่แล้ว +1

    Thank you sir I’m jni

  • @hafidboston9674
    @hafidboston9674 2 ปีที่แล้ว

    Where I can find those books

  • @pvantran82
    @pvantran82 2 ปีที่แล้ว +1

    Join

  • @MTknives
    @MTknives 2 ปีที่แล้ว +1

    Do you take into consideration how many times kids go in and out? 🤦‍♂️ I wanted an ICF until I figured it didn’t matter with the amount of time my doors stay open. 🤷‍♂️

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว

      I do not take that into consideration unless its sizing for a commercial building

  • @shreyuvlogs5403
    @shreyuvlogs5403 ปีที่แล้ว +1

    Hi

  • @JF-fx2qv
    @JF-fx2qv 11 หลายเดือนก่อน +2

    Click bait as an attempt to gain $ via access a pay wall.

    • @TaddyDigest
      @TaddyDigest  11 หลายเดือนก่อน +3

      Not all Knowledge is free
      At some point I have to make a little bit of money.
      What i'm charging is nothing compared to schools that charge somebody ten to fifteen thousand dollars.

    • @Parabellum-X
      @Parabellum-X 5 หลายเดือนก่อน +1

      An open mouth such as the one you brought here attracts nothing more than mere flies.

    • @Parabellum-X
      @Parabellum-X 5 หลายเดือนก่อน +1

      ​@@TaddyDigestFuck him, bro. You keep up the great educational videos you've been putting out.
      It's been more help than you can possibly imagine.

  • @teresacampbell2120
    @teresacampbell2120 2 ปีที่แล้ว +1

    just subscribed I am praying you can help me everyone thinks that because I am disabled I have money! But that is so far from the truth!!!!!

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว

      Join this channel to get access to perks:
      th-cam.com/channels/uMyjTVlkM4xZ5z_eSyoB1w.htmljoin
      Wanna Learn more about hvac? Check out my hvac tips for technicians playist.
      th-cam.com/play/PLVjetZt5xgenmO76adHwb2ctyeBIFKUus.html

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว

      Check out the membership levels let me know which one works for you and then send me an email after you have joined
      at tadfuller1@gmail.com

  • @Balticblue93
    @Balticblue93 2 ปีที่แล้ว +3

    Wait a second, you ripped out a perfectly well working 2.5 ton unit for a new 2 ton unit for barely a half-ton (barely at 1100 sq ft)? Please tell me you are kidding me? Was it broken and old and needing replacement? Otherwise, what you did was unethical and not even logical. You could have easily changed the blower speed to 700-800 CFM and use the the existing 2.5 coil for the extra efficiency and increased Seer rating. I am not sure where you are located but a good dehumidifier could have pulled enough air off the system to slow it down too. You did not specify the details of many questions I have now. What design of 14" ducts were installed? Were they square galvanized or duct board 14x14 or 14x10"?, 14" flex ducting or 14" round galvanized duct? Because all three of those would have been fine at a slower blower speed without a change-out. And how many return ducts and how many supply registers and what kind and size were installed in the home? That is like replacing the engine because it is an extra quart of oil was used (drain off a quart and it is good to go). You could have changed the speed of the blower and made sure they had proper large filtration with a 4-5" filter for good flow but that could also have been a point to slow down the CFM's as long as the ESP was within limitations of the unit.
    But if you said it was a 20 year old unit running R22 and needed recharged or a new Evap coil then fine. But if you changed it out for 6000 Btu's, which is about nominally 4800 Btu's on a good day and probably a pile of latent and a fan running a little fast that could have easily been slowed down to make up for the lack of return air then you could have just made one to two changes then the problem would been solved and you would be the hero with a decent paycheck.
    You take the sensible and latent cooling and heating figures, do the math and you have exactly what the customer had before you ripped it out. Just removing the latent humidity would have dropped it down plenty especially by slowing down the blower to 700cfm with a wire change and some dip-switch settings.
    So I really would love to know how old the system was before I tell you that you are a thief and dishonest. Sizing is very important in every system, but ripping a system out over a half ton is ridiculous unless there are ulterior motives or it was flat out broken, old, too expensive to fix or needed a few pounds of R22. Give me something here because otherwise what you did was unethical and could have been retrofitted or adjusted on the blower or fan controls. If you said it was a 4-ton unit, sure I get it, they got ripped off and it needs to be fixed. But you do not specify why you swapped it out in your video and which type of ducting was in place. 14x10 rectangular ducting can easily take 800 CFM, so slowing it to 700 (350cfm per ton) is more than doable by changing a few jumpers or changing out a motor. Please just tell us the reason to change was not just because the unit was barely oversized for an 1100sq ft unit. That is insanity unless it was broken or burning up capacitors like crazy or a bad system board. I will get off your back, if any of those scenarios are in play. But I am not paying to watch the rest of the video. I am heading to bed because it is going to be a busy day, but I look forward to your response.
    I own an HVAC company and we specialize in Home performance. I have studied the ALL the manuals for years and years and nobody knows it all. I have been to two in-person ACCA trainings with Ed Janowiak and met him personally, not to mention the rest of the speakers during many months and years of training and not to mention reading hundreds of pages of each manual for properly designed systems. I don't think Hank Rutkowski would be very happy, if his books were used in this manner. Please tell me I am making a big deal out of nothing because the unit was dead or dying. I don't know what you fellas charge for an install of a 2-ton York package unit, so I hope they received a good deal. But here, that is big bucks for what sounds to be an unnecessary change-out. TH-cam's finest fella "Anti DIY HVAC" found another unnecessary change-out also this week. Seems like the commission fairy is coming early for Christmas.

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว +2

      I don't make commission
      It's not OK to have an oversized unit
      Please stop oversizing equipment if you are
      My customers are happy the electric bills are low and air flow is great 👍
      Thanks for watching

    • @Balticblue93
      @Balticblue93 2 ปีที่แล้ว +1

      That is great about commissions but since you own the business, that isn't true either. Your customer did not call you out because their 2.5 ton unit was too big and wanted to spend a pile of money with you on a smaller unit. So, what was the original call request for? I fix problems for my clients and do not sell or charge them for unnecessary items. Every HVAC technician would just lower the blower speed and fix the issue, then look at alternatives. But that 2.5 ton even at full power wouldn't give you any issues in an 1100 sq ft unit that isn't brand new and probably has latent and sensible losses especially nominally from ducting and register losses.
      Did everyone notice that he avoided all my questions? You know darn well that you could have just turned down the system and not sold your client and unnecessary change-out. But since there was nothing wrong with the system, you just committed an unethical offense. My customers thank me for saving them money in their wallet, not taking advantage of them because they do not know the difference. That is like changing out the engine of a car because it has too much horsepower for the tires to get traction. Either turn down the power or get better tires or both!!. Like my analogies? I can do this all day. I am glad your customers are happy with their energy bills. Mine are happy because they didn't have to shell out 8-15k for a system they didn't need. Gaslighting and turning it around on me is just what dishonest people do. You blame me for calling you out. 2-3 inexpensive items fix the problem here. Turn down the blower, better filtration system, dehumidifier, and some knowledge fixes this problem. If you told me the unit was 18 years old and needed expensive repairs, I would be on your side all day and twice on Sunday. But you wouldn't answer a single question of mine. It is because you know I am right and am calling you out in front of thousands of your viewers. But here in Denver, IF THEY NEEDED A NEW UNIT, I would quote a 2-2.5 ton with a 2.5-ton coil. I do quotes for Good, Better and Best and explain the differences. Single stage, two stage or variable speed with options for humidification, upgraded thermostats, upgraded insulation, extra supply registers, increased return air, make-up air, ventilator, etc all optioned out by line item and not in the base quotes. So, they get to choose what they can afford and what is best for their home. We can agree to disagree because you have to save face in front of your followers. But don't worry, I will keep watching your videos and pointing out the major flaws now. I greatly dislike dishonest salespeople and business owners.

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว +1

      The bill was $6500 installed
      😊

    • @Balticblue93
      @Balticblue93 2 ปีที่แล้ว +1

      @@TaddyDigest I will first start by saying that is a pretty good price and thank you for being transparent (That honesty goes a long ways). That could be a VERY good price, depending on what unit below is installed. I will come back here and let everyone know that your pricing is decent, great or awesome!! Perhaps even drive some more business your way.
      Just for my knowledge, is it a PCG4, PCG6, PHE4, PHE6, PHG4 or PHG6? I suppose it could be a PCE4 or PCE6 also.
      Gas? /
      These are for my curiosity, because we do not sell very many package units in Colorado unless it is commercial, but I have done their training for the residential product line. I will let it be after that. I am just curious what they sell in your part of the country and what works well. Knowledge is wealth! Food for thought, if you will?

    • @TaddyDigest
      @TaddyDigest  2 ปีที่แล้ว +1

      always honest
      I am just here to help
      Have a blessed day my friend

  • @MTknives
    @MTknives 2 ปีที่แล้ว +1

    First

  • @victorromayor5429
    @victorromayor5429 ปีที่แล้ว +1

    Join