Mike Krzesowiak
Mike Krzesowiak
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How To Convert CFM to ACH 50
In this video, I will explain the formula we use for converting CFM (Cubic Feet Per Minute) to ACH 50 (Air Changes per Hr) at 50 pascals. I'll use some air leakage rates that I gathered from a blower door test on my own home as an example.
A blower test typically gives a result in CFM at a particular pressure (Usually using the standard of 50 pascals), AHC 50 is a useful metric because it helps us understand an air leakage rate relative to a house's volume.
Imagine you had 2 houses that both scored 2,500 CFM. You might think that these 2 houses are equally leaky. But if one of these houses has an interior air volume of 10,000 cubic ft and the other a volume of 30,000 cubic ft. What then? The 2,500 CFM means something different to each house. Even though both houses scored 2,500 CFM they're not entirely the same. Converting to AHC 50 helps us account for this.
Exterior surface area to CFM may be a metric better yet than ACH, but I digress, that's a conversation for another time.
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PPE (Personal Protective Equipment):
-Knee Pads:* amzn.to/3lMzsBL
-OSHA Compliant Ear Protection & Bluetooth:* amzn.to/3f9mY5U
-3M Respirator:* amzn.to/3ciWa1n
-Composite Toe Boots:* amzn.to/2PmOLFp
-Audible:* amzn.to/3chm4zF
-Favorite sidearm:* amzn.to/3cf4E6P and amzn.to/3tWsCiI
__________________
See What I'm Up To:
Instagram: mkrzesowiak
Website: mikekrzesowiak.com/
TicTik: vm.tiktok.com/9tyjaL/
*Affiliate Disclaimer & Disclosure:
A personal value that I hold is transparency, especially on the web where it can be easy to hide behind "personas" and social media profiles. So to shoot straight with you - the links above may contain "affiliate links." This means that if you make a purchase through those links I receive a small commission. This occurs at no additional cost to you.
I'm not here to "hard sell" you. I'm here to be helpful. So if you don't click the links, that's fine. The only links I post are products/services that are relevant to the subject of the video or I have found to be helpful or believe could be helpful to you. It helps me underwrite the cost of producing this channel. If you choose to make a purchase through one of these links, thanks! Know that I'm grateful for you either way.
Resumes are obsolete. Work is the new resume. Do good work.
Make things better by making better things,
-Krz
zhlédnutí: 601

Video

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zhlédnutí 145Před 2 lety
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Komentáře

  • @clarencewhite1219
    @clarencewhite1219 Před 12 dny

    Thanks

  • @GlobeHackers
    @GlobeHackers Před 17 dny

    I am having the problem OUT OF NOWHERE with screen recordings haha. Oh, and, by the way, your solution worked. Thanks much

  • @cronosfilms2157
    @cronosfilms2157 Před 19 dny

    Fuiste mi salvación gracias bro 🎉

  • @Sketchloc
    @Sketchloc Před 22 dny

    You are hilarious! Really enjoy ur videos

  • @bmfitzgerald3
    @bmfitzgerald3 Před měsícem

    Fantastic vid. Thank you!

  • @tortugam1045
    @tortugam1045 Před měsícem

    Awesome review, especially the follow-up. Thank you!

  • @SCOUSEBAMBAM
    @SCOUSEBAMBAM Před měsícem

    milwaukee do an electrical staple on same name as this just instead of bst its bcst

  • @wynkibabb1648
    @wynkibabb1648 Před 2 měsíci

    Great video brother. suggestion, protect the tip with a short piece of vinyl tubing or duct tape over the end of the gun tip.

    • @mikekrzesowiak7944
      @mikekrzesowiak7944 Před 2 měsíci

      That’s a good tip (pun intended), I think a piece of vinyl would work well

  • @nitinvarshney5920
    @nitinvarshney5920 Před 2 měsíci

    Where can I find the camera you are using for doing thermal imaging?

    • @mikekrzesowiak7944
      @mikekrzesowiak7944 Před 2 měsíci

      There is a link to it in the video description, it’s called FLIR ONE

  • @thchruan
    @thchruan Před 2 měsíci

    Hang on… I have this but the files already are mov!

  • @tomprovan50
    @tomprovan50 Před 2 měsíci

    thank you

  • @Eric-hl3bb
    @Eric-hl3bb Před 3 měsíci

    mine is already a mov lol and still messed

  • @AlabamaJay
    @AlabamaJay Před 3 měsíci

    Man thanks a lot for this! You’re the real MVP 🎉

  • @ALCRAN2010
    @ALCRAN2010 Před 4 měsíci

    Where'd you get the bolts? Size ?

  • @AK99581
    @AK99581 Před 4 měsíci

    These things are great for micro-adjusting the bead, only problem I have is you can't switch out cans until the current one is empty unless you want to lose all the contents. This means if you want to be able to spray different foams you'll need multiple guns.

  • @johnbahnick3745
    @johnbahnick3745 Před 4 měsíci

    Very helpful 😊

  • @mbruce4152
    @mbruce4152 Před 4 měsíci

    Very thorough but concise, much appreciated

  • @DrumforJC18
    @DrumforJC18 Před 4 měsíci

    OMG THANK YOU!!!! I WAS BREAKING MY HEAD TILL I FOUND THIS!!!

  • @hippocratesm.d.1543
    @hippocratesm.d.1543 Před 5 měsíci

    More videos pls?

  • @Kamikaze3557
    @Kamikaze3557 Před 5 měsíci

    Kraken ,only way to go.

  • @geraldrivard5767
    @geraldrivard5767 Před 5 měsíci

    where did you get your upgraded ram at can you send the link, appreciated.

  • @Youtubehandle.
    @Youtubehandle. Před 5 měsíci

    Watch lots of crap, this was very useful.

  • @freetheroleplayerguides
    @freetheroleplayerguides Před 5 měsíci

    Thanks. It still works with fixing videos.

  • @ECUStudentGroup
    @ECUStudentGroup Před 5 měsíci

    Hold up. You wait 13 minutes to tell us you can’t actually use the door when you’re done?

  • @steven15039
    @steven15039 Před 5 měsíci

    Too much goofing around, vs. actual real advice given. C-

  • @ItsPricellaa
    @ItsPricellaa Před 5 měsíci

    😊THANK YOUUUUU !!!! FCPX has been an absolute pain, glad I came across this video!!

  • @TDBear-bs6zl
    @TDBear-bs6zl Před 5 měsíci

    Question, do you smoke the joint before or after you seal it ? Asking for a friend of course 😉

  • @URBANERTSLINGS
    @URBANERTSLINGS Před 5 měsíci

    I'm using a Hohem M6 gimble and this absolutely worked, changing the .MP4 to .MOV . Thanks!

  • @michaelkilling6172
    @michaelkilling6172 Před 5 měsíci

    I have 102 pro series guns and 196 great foam 24 oz can for sale anyone wants it

  • @tonylarge5298
    @tonylarge5298 Před 5 měsíci

    at Ace Hardware you can get the gun for the rip-off price of $75 and a can of foam for $18 . I ordered the gun from Temu for $ 7 but they don't sell the foam. I am looking for the foam for a reasonable price but not have much luck.

    • @mikekrzesowiak7944
      @mikekrzesowiak7944 Před 5 měsíci

      I buy the foam at Menards. I’ve seen HomeDepot stores that carry it too.

  • @jasontaylor9871
    @jasontaylor9871 Před 5 měsíci

    i thought the directions said you could leave the bottle attached to the gun and it would work 10 days later when you needed it?

  • @musicalengineer
    @musicalengineer Před 6 měsíci

    How about Apple - fix the bugs!

  • @lefueg
    @lefueg Před 6 měsíci

    if you somehow have grease left in the cartridge your going to make a colossal mess removing the cartridge that way

  • @hansoncrack
    @hansoncrack Před 6 měsíci

    Thanks for the tutorial and humidity tip

  • @trshcln6937
    @trshcln6937 Před 6 měsíci

    5 years later and hard drives haven’t improved one bit and got 10 bucks per tb more expensive lol

  • @swxbo
    @swxbo Před 6 měsíci

    Is it good to hold your my music session ???

  • @americanfreedom6417
    @americanfreedom6417 Před 6 měsíci

    Excellent, but I will be fighting way more rust 2003 GMC North Ohio, and yes she runs and drives way tooooo good tooooo give up on her.

  • @OhJanney
    @OhJanney Před 7 měsíci

    I paid for a pella which was also installed by pella and yet here I am watching this video. I wasted my money pretty much!

  • @dvscrobe
    @dvscrobe Před 7 měsíci

    VERY Interesting!!!

  • @ebirac2007
    @ebirac2007 Před 7 měsíci

    Thank you for the vid. I like how you explained the cleaning. Awesome

  • @michaelfraser4929
    @michaelfraser4929 Před 7 měsíci

    Is that your original music on the guitar in the background? Impressive.

    • @mikekrzesowiak7944
      @mikekrzesowiak7944 Před 5 měsíci

      Unfortunately, it’s not. But I do really like that music.

  • @brettwatty101
    @brettwatty101 Před 7 měsíci

    Great video mate, thanks for posting.

  • @samuelmaylor6634
    @samuelmaylor6634 Před 7 měsíci

    Good vid. Just finished doing this to mine, except where would I find or what size is the nut on the tailgate door side that the hinge screws into? I have one missing.

  • @bobrosberg55
    @bobrosberg55 Před 7 měsíci

    Thanks for your video, you explain things very well. I have a couple questions. I recently opened a library that contains edits, sound etc on a new Mac, M1. The media clips, when clicked on, I see the "modify" option. Why is that and should I just go ahead and modify? Also, "voice isolation" box will not check so I am unable to use it. Any idea why? Finally, the project which opens in the timeline contains two clips with that dreaded red box warning. The sound is there but not the video. I tried relinking but FC is not able to find whatever is missing. I may try opening FC on the old computer and assuming I still have it there, will try to copy and move to the new Mac. I apologise for so many questions but this move to a much needed Mac has not gone quite as smoothly as hoped. Thanks for any help.

  • @petejohnson8397
    @petejohnson8397 Před 8 měsíci

    non chlorinated brake parts cleaner works great for cleaning also. it contains acetone, toluene, and a type of alcohol the censor wont let me type. carb and choke cleaner also.

  • @RogerAdams-we8ll
    @RogerAdams-we8ll Před 8 měsíci

    Thanks. Had mine disassembled 30 minutes after watching your video.

  • @iandunn206
    @iandunn206 Před 9 měsíci

    Great video! So many on youtube give unsafe advice, but yours was solid as far as I can tell (I'm not a roofer, just a DIYer that tries to do research and do things the right way). 1:44 You can also use strong magnets to locate a rafter without putting holes in the decking/shingles. Make sure they're strong enough to attract each other when there's a 2x4 in between them. I like the 1x3" rectangular ones, so you have a straight edge up against the rafter. Secure the magnets in the attic on both sides of the rafter, making sure they can't move. Then take two more up to the roof and move them around until they lock in place. To help find the general area in the attic, you can play some music on your phone, then place it on the roof where you want the anchor. Secure it by tying a line to a similarly weighted object and hang that over the ridge, or tie it around a vent etc. Or just measure if it's a simple layout. 4:39 You can use a roof snake to avoid tearing the last shingle, it's a lot easier than bending it back. To repair a torn one, you can cover the crack in roofing cement, then get some shingle granules from the gutter and put it over the cement to (mostly) blend in with the rest of the shingle. If you have some leftover shingles that haven't been used, that's even better since there won't be dirt mixed in.

  • @iandunn206
    @iandunn206 Před 9 měsíci

    Your channel is a gem, keep up the good work!