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@leonelvelasquez3645 3 күн бұрын
Can I get more information about the course??
@HVACProBlog 2 күн бұрын
Absolutely - the link is in the description, but to make it easiest: hvacdesignsociety.freshlearn.com
@DavidCasey-u7g 3 күн бұрын
👍👍
@eringoriginal8714 10 күн бұрын
Thank you so much for this video. I am in the planning stages of a full gut of an old house. I am planning on doing underfloor radiant heat (gas combo unit) and Central A/C. The house is a one floor with a large open unfinished attic. I have only ever seen returns on walls (high and low) but kept thinking the ceiling would be better for a cool only system. Efficiency is a huge priority for me. Adding 2 ceiling vents for input and output seemed like a good idea. Your video confirms that!
@kevinpearce3281 13 күн бұрын
Wow that video sucked.
@OGoshlyKakashi 15 күн бұрын
Sounds like I hit the hand payout at the casino
@kennethlong3631 24 күн бұрын
Question, heat rises I got to vets in my room was near the bottom of the ceiling ones at the bottom of the wall. The top of the heat the bottom is the air should one be closed and the other open.
@abbii1661 28 күн бұрын
show pics videos of what you are talking about. sorry, but your vlog is boring
@JeremyFloyd-s3j Ай бұрын
That pressure loss of .065 is inch of water column?
@staycoolwithrob 2 ай бұрын
Thanks
@thatflymechanic 2 ай бұрын
This is the first video I've watched for HVAC. Am I able to piggy back off another duct to cool down the garage? My hvac is on the east side of the house in the attic. Their is a duct that goes to the hallway. Am I able to do a y connection to get to the garage? Or is their a better way of routing?
@syed_armansalaimazz8835 2 ай бұрын
Great presentation
@HVACProBlog 2 ай бұрын
Glad you think so! Thanks for watching!
@DuctlessExpert 2 ай бұрын
Hello When you have a home with a basement condition or not and the complete hvac system is there I understand that the basement should be conditioned , but most are not Do you include the basement sg’ in the manual j When you have a attic that has 1:00 1:00 hvac in the attic do you include the attic sq’ with in the attic I know the attic should be conditioned if there is hvac there so I would add it in correct It isn’t conditioned and hvac is there I still need to account for the loss correct
@jamesdemarcus1008 2 ай бұрын
I’ve given this speech to lots of people. I would add if you’re switching to a heat pump air handler that the blower performance charts include the coil. More air because you dropped static by the amount of the furnace split coil pressure drop. Great video.
@JOIHIINI 3 ай бұрын
Hey please!! Need help!! I have a 4 ton heat pump with the return coming from the bottom, it needs to sit on a 13 inch high box to accommodate a 10x30 return drop and the unit is 49 inches tall, so 62 inches total height. My ceiling is 77 which leaves me 14 inches for a plenum and my trunk line is 10 inches tall. I wanted to do an offset to the trunk line to give good air flow but we're talking like 1-2 inches from the bottom of the plenum. Is that a problem? This video is the closest thing I could find to any content discussing this and it mentioned 10 inch minimum which would be impossible even with an 8 inch tall trunk. Let me know please!! Any advice? Am I okay?
@walkerdarin2003 3 ай бұрын
Thoughts on corrosion grenades?
@DavidCasey-u7g 3 ай бұрын
👍👍
@famousdude1239 3 ай бұрын
yack, yack, yack
@dm7175 3 ай бұрын
Dude, where the f#%$ is the vent?
@kelleykeffer6249 3 ай бұрын
Your info is great. I’ve been in hvac for 20 years , maybe a touch longer. I started a business a few years ago and it’s went well, but I find myself a much better teacher or coach especially when it comes to field technicians and sales. I’ve been highly considering starting a coaching business or technician training . Like real training with units and dip switches . There’s very few of those anywhere . And the only true way to learn hvac is hands on. And even 20 years later you’re still gonna run into something that just doesn’t make sense . But your info is great
@kelleykeffer6249 3 ай бұрын
I guess I’ve found it harder to translate my business into what I was doing for someone else . I averaged around 4 million in sales for almost 5 years straight. Some years more some years less . But avg. I was outpacing the sales guy by quite a bit as a technician. My customers asked for me by name and they knew I wasn’t gonna sell them a unit if it wasn’t the best solution. Or I wasn’t gonna try to up sale them on something they absolutely didn’t need. I would rather find something that would be useful to them. We have high high humidity here where I live and about 85% of the units I run into have biogrowth inside , I found a product that I liked and used myself so I knew it worked and that would be my go too if nothing else was needed at the call. But now that I am in business for myself. And this is my second business . First one was fixing foreclosures for banks. That was years ago. And it just got horrible with all the subcontracting and my pricing went down 500% , I stayed in it too long because I had employees I didn’t want to kick to the curb. But back to the point. I find myself, struggling to do the entire operation and not being in a place to be able to hire out quite yet. I have yet to see anywhere close to the sales numbers I made for the company I worked for before venturing out on my own. I’m comfortable most of the time, But you speaking of those big jobs that turn bad , I’ve had a couple of those , and they hurt . They hurt bad as a small company. Pricing is key , and you’re very right about taking the van home and going to the first call. That stops the 30-45 min shop talk in the morning. And a clean, organized van is absolutely key. Thanks for all the good info
@kelleykeffer6249 3 ай бұрын
Being ex military gives me a different aspect on things I guess
@larryl22 3 ай бұрын
Local contractor oversized my heatpump ( I have increase in humidity, my system runs longer, and my evaporator coil truck / supply is always sweating, etc) what can i do now? Need advice. my sqft is 3490, i have 2 zones (upstairs and downstairs) the unit in the basement was replaced with a heatpump.
@HVACProBlog 3 ай бұрын
Thanks for watching @larryl22! I would recommend you find a quality local contractor to complete a load calculation on your home. Based on this, it may be possible to manipulate the airflow low enough to decrease system capacity...this may require a refrigerant charge adjustment as well depending on the type of system. This will not however fix your duct condensation issue. The ducts are below the dewpoint of the air...sounds like you may either need insulation on the supply, dehumidification in a basement (if the ducts are downstairs), or ventilation of your attic (if the ducts are up there)...
@larryl22 3 ай бұрын
@@HVACProBlog can you please recommend a contractor...i live in milford, ma
@DavidCasey-u7g 3 ай бұрын
👍
@a.t.701 3 ай бұрын
Hi Chris. Thank you so much for all this excellent information. I'm having a very hard time finding anyone explain how to input vaulted ceilings into the various manual J software. Is it as simple as figuring out the equivalent air volume as if the ceiling was flat and inputting that calculated ceiling height? And then inputting the actual ceiling square footage which will be greater than the floor square footage? Also, is there a better way on placement of registers on such ceilings - like one at the very top and one lower closer to the wall, rather than just having one at the lower location? If you could help by sharing your thoughts, that would be so helpful and appreciated.
@HVACProBlog 3 ай бұрын
Hi @a.t.701, thanks for watching! Vaulted ceilings are typically entered into Manual J software as a 'roof/ceiling combination' or a Mansard (if you have a small flat ceiling at the peak). The room height should always be the wall height, and anything above that for volume is added to the ceiling input. The location of supply registers can depend on the application, like a room evenly heats better if on a floor, or more even cooling if in a ceiling. If you have a ducted system that operates heating and cooling, then one will have to be sacrificed - which is usually the season with less run time. So, this is one of the reasons we see a lot of floor registers in New England. I hope this helps!
@virgil3241 3 ай бұрын
Awesome video. I had a new ac installed a couple summers ago, and unfortunatly, just installed the same size, which is a 3 ton. I could probably of gone with a 2.5 ton instead, since I have done a ton of energy upgrades since the house was first built (I am not the original owner). I could say a lot, but my way around this is to have a temp threshhold of 1.4 degrees more than my set point, so then it gets long run times, The wife doesnt notice and the humidty goes down since the run times are longer. Plus with an Ecobee and all my sensors, I only use the sensors in the warm parts of the house. Is it perfect, no. But with HVAC there is no perfect, since every house and area are different. Even having more family members in a house can make a difference on your cooling, or a young family compared to empty nesters. I range from 40-50% most of the time, so I must be doing something right
@VincentHuynh-k4r 3 ай бұрын
Hi, thank you for the informative video. You mentioned at 3:54 that when having an ancillary dehumidifier, we can use Option B (+15,000 BTU/H) for anywhere in the United States. Is this still the case in 2024? I'm referencing Manual S Second Edition 1.00 2014, and see that to use option B there are 3 requirements that need to be met: 1. The dehumidifier shall be part of an engineered System. 2. The local degree day ratio shall be 2.0 or more. 3. The AHJ does not provide different Guidance. With those conditions, would it mean that only Nothern parts of the states would be able to use condition B?
@HVACProBlog 3 ай бұрын
Hi @VincentHuynh-k4r! You are correct sir, my mistake! If a home does not have a sensible heat ratio above .95 in a climate where HDD is 2.0 > CDD, then whole home dehumidification can offer the use of Condition B. This would not be available if HDD < 2.0. However, this would most likely mean you either have a load that is larger in cooling (which is how we size heat pumps, to the cooling load), or they are a lot closer to equal - and such an oversizing factor should not necessarily be needed to apply. Also, in the New Manual S v3, you do have the opportunity to size to the heat loss with a heat pump if you install whole home dehumidification to meet 100% of the latent needs. there are a few other caveats, but should clear this up going forward (once published)...
@SteveFontaine99 3 ай бұрын
Very insightful post, thanks for sharing!
@HVACProBlog 3 ай бұрын
Glad it was helpful!
@ruff8921 3 ай бұрын
What’s decent humidity inside when temps or in the 90s outside
@HVACProBlog 3 ай бұрын
Thanks for watching and reaching out! This depends on what the humidity is outside, basically where you are located. For most of the US, we target 50% RH indoors when we are at design temps. If you are in Miami, likely 55%. Or at elevation or dry climates like AZ, 45%…
@ruff8921 3 ай бұрын
@@HVACProBlog thanks so much
@ruff8921 3 ай бұрын
One more question it’s a brand new system had it for week and humidity stays around 57 to 60. I just don’t remember old one being like this. Feels cool but you get up and moving around you get wet. Guess I’m asking does that sound about right to you. Really can’t find any answers online. I have them coming out to look at it again Thursday. Any certain things I can tell them. Thanks man. Your a major help
@chiefhokie 3 ай бұрын
@@ruff8921 just chiming in, but I also have a new system and once it had been installed, I could tell it was oversized (went from 2.5 ton to 3.0). Humidity inside the house is consistently about 50-60%. Talked to the installer and he kept giving me the "that's how it's supposed to work", "humidity should be around 50-60%", "it's probably your windows", etc., but I didn't feel any of this humidity with the old system, only with the new one. I guess what I'm trying to tell you is that don't be surprised if your system may be oversized. See if the fan within the inside unit can be slowed down a bit, that may help a bit; it helped me so that my system wouldn't short-cycle as much (runs longer now), but it's not a perfect solution either. Hope that helps.
@ruff8921 2 ай бұрын
@@chiefhokie thanks bud. Helps forsure. I kinda just chunk it up to the older things were built better,lasted longer and ran better.
@patrickhutchins6935 3 ай бұрын
What in hell made you think adding background music would make it better? Was too annoying
@HVACProBlog 3 ай бұрын
Thanks for watching & providing feedback! I received some poor advice early on, and you found an older video. I have since made this correction, with better 4k and audio. Please be sure to check out some of my more recent content?
@patrickhutchins6935 3 ай бұрын
You have great content, you don't need music to make your videos rewarding. This was the 1st of yours I tried to watch but I went to your channel and have watched serval more since and have now subscribed. Thanks
@ChristianThunder 3 ай бұрын
HI, are you avaible for a consulatation? You're website won't let me book an appointment with you. Please advise.
@HVACProBlog 3 ай бұрын
Sorry @ChristianThunder , I do not currently offer consultations. If you are an HVAC Professional, I do offer System Design Training and Monthly Q&A on my Patreon Channel as an Elite Member: www.patreon.com/HVACProBlog
@ChristianThunder 3 ай бұрын
Are you available for paid consultation?
@HVACProBlog 3 ай бұрын
Sorry @ChristianThunder , I do not currently offer consultations. If you are an HVAC Professional, I do offer System Design Training and Monthly Q&A on my Patreon Channel as an Elite Member: www.patreon.com/HVACProBlog
@-MrRichBiker1967 3 ай бұрын
Phenomenal, I have never seen a HVAC explained so well and organized like yourself. Hats off to you my man.. you got this down to a science. I sure wished you lived in New York. I have a 1400 ft² house they installed a Rheem 2 ton unit, when really hot doesn't cycle runs constantly.... when cooler runs normal. Think I should have had a two and a half ton what do you think. Thank you in advance and I love you videos
@HVACProBlog 3 ай бұрын
I highly recommend you have a complete Manual J completed with ACCA approved software to verify the size system needed for your home. For example, I have seen a 1200 sqft home in RI that is 40 years old without weatherization need 2.5 tons. I have also seen a new construction home in Wellesley, MA that is almost 5,000 sq for need just 2.5 tons…
@CarsSimplified 3 ай бұрын
Good stuff! That bit about airflow being allowed to pass through the entire filter is definitely something automakers could be paying more attention to with engine air filters. I'm glad my house unit at least has that in mind, since it has a 4-inch-deep MERV 13 filter that looks like it takes a lot of effort to push air through.
@johnwhite2576 4 ай бұрын
If you dont have that 10 inch min when you use a 45degree taper on the 1-D, should you stick with stabbing into plenum to preserve 10 in height, or go with taper and sacrifice soem of theta height to below 10 inches ?>
@HVACProBlog 3 ай бұрын
I would recommend some taper. Just realize it may not be a 10’TEL then. Somewhere between 10-35’ is likely.
@ChristianThunder 4 ай бұрын
Hi Chris, excellent job with these videos. I’m learning a lot, you’re a great teacher! I have a question for you. I recently had new construction built for me and the Manuel J included a Carrier brand system and specs for the report, which is what the Manuel S also included or recommended. But my builder installed a Comfort Aire handler and Rheem condensers. The builders choice of equipment was not included on the Manuel J or S, is this problematic? I am having issues with my upstairs system. It’s running consistently on warmer days and has very poor air flow compared to the downstairs system which is .5 tons larger. I’m thinking they undersized the upstairs unit but I’m a novice with a Manuel J report trying to find the problem. Any advice would be appreciated, and thank you for taking the time to make these informative videos!
@JMoney-ne3to 4 ай бұрын
Useful video...but turn down/off the music.
@HVACProBlog 4 ай бұрын
Thanks for watching & providing feedback! I received some poor advice early on, and you found an older video. I have since made this correction, with better 4k and audio. Please be sure to check out some of my more recent content?
@phayzyre1052 5 ай бұрын
The biggest problem with testing and balancing, after everything is said and done it’s generally a waste of money. I used to do HVAC work and worked for a testing and balancing company. After a while, I realized all I was doing was just pi$$ing in the wind! We would go in to a building (sometimes a brand new building) and set everything up to the engineering specifications only to come back and check everything a few months later and see that the customers had completely readjusted everything we did! Some customers would complain they were too cold, others would gripe they were too hot and what would they do? Go in and tinker with the settings, dampers, shut off valves, etc. causing everything to run in efficiently in the process. Of course, the video you have here is good and very informative and I don’t mean to gloss over nor kick what you do to the curb but it’s a lot of money wasted to go through all the hullabaloo of setting something up to come back and have somebody screw it up again!
@joecox9958 5 ай бұрын
really nice! I need to watch again for the last point. thank you so much!
@kamranbeigi9044 5 ай бұрын
The music is louder than the speech. Not suitable for a tecgnical presentation. Would have been OK for an elevator lobby. Could not listen to the end.
@HVACProBlog 5 ай бұрын
Thanks for watching & providing feedback! I received some poor advice early on, and you found an older video. I have since made this correction, with better 4k and audio. Please be sure to check out some of my more recent content?
@jamesrecknor6752 5 ай бұрын
Flat rate or fail
@jamesrecknor6752 5 ай бұрын
TRUE
@eliorios9420 5 ай бұрын
Do you want me to hear the music or do you want me to hear you talk lol😅 I appreciate the information
@HVACProBlog 5 ай бұрын
Thanks for the feedback. You found an older video of mine created when I had some bad advice. I have since dropped the music and improved audio significantly…hoping you will still checkout some of my latest content?!
@shirleypineda9726 6 ай бұрын
If I have a return air in my wall and with no ducts leading like literally just a return vent and then you see the inside of my walls. Why? My house was built in 1988.
@HVACProBlog 5 ай бұрын
Hi @shirleypineda9726 ! Thanks for watching my content. Although ok at the time (1988), this is using the wall cavity as your return duct and would not meet today's installation codes. The wall cavity is extremely leaky and will be taking more air from unwanted areas, not only from your conditioned space...
@omarr.r1448 6 ай бұрын
Lost a chromosome
@TerrenceLP 6 ай бұрын
Amazing, yet in the wild I yet to see all of this being followed. The combination of making money, time vs speed and the unique challenge of each house... ducting
@BadBeanTaco 6 ай бұрын
What are you suppose to do when the AH is in the worst spot of a U shaped house so you have to go two directions from the plenum
@rvbtx1 6 ай бұрын
Duct velocity and grille/registers velocity are 2 different things.
@abazism 6 ай бұрын
Should I go by AF or diluted?
@ronniepdagayday 7 ай бұрын
how do you get that latent heat. thank you sir..
@AttainableHome 7 ай бұрын
This is really excellent, thanks so much for doing this. Learned a ton (no pun intended)
@yasiriqbalbuttofficial 7 ай бұрын
Background music irritating
@HVACProBlog 7 ай бұрын
Thanks for watching. You found an older video, and have since corrected this in my content going forward. Please check out some of my new stuff?
@eulaliorodriguez5325 7 ай бұрын
Thank for sharing this skill.