Mini Split Sizing - Spray Foam Insulation and overheating issue
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- čas přidán 7. 09. 2024
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Watch this video. How many Mini Splits do I need?
• How many Mini Splits d...
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spray foam has lots of chemicals expect leaking coils in evaporators in the future.
read service manuals tons of valuable knowledge
tight house means u wnt have lots of thermal loss
My cabin is 529 sf interior with open cell spray foam. Had a 24000 BTU unit installed because my Dad talked me into it. Boy was he wrong and my humidity is typically 75-82% Looking at a 15k cooling 18k heating unit now
Are there split room pressure considerations when adding a mini split to an already conditioned house?
You figure mini split is 100pct of the air that comes from the return goes to the supply, but maybe i am missing something?
good question I will try to do a video soon on that topic
I have a 2500 sqft shed with 14ft sidewalls and spray foam. Similar to the one in your video. Looking to cool it a few times a year for meetings with 40-70 people. What would your btu/ton recommendation be in that situation? Thanks
I have a 930 sf metal garage with 12' walls. I installed a radiant barrier directly over the frame rails. This gives me a 2.5” air gap on the walls and a little more of an air gap on the ceiling. I then screwed 2” foam. board over the radiant barrier. I believe the foam board has a R 7.5 value.
What size mini split would I need? Id be happy to maintain 75-80 degrees.
bluon free service manuals
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I have a 1000 sqft pole barn that's going to be insulated with 5 in closed cell on the walls and 3 in on the roof. Using the space for wood working, but I'm not sure I even need a minisplit - whats your advice? Just looking for a constant temp that isn't too uncomfortable.
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Hey, just joined, building a foam insulated barndo in North Texas. Advice on mini split sizing? 2 bedroom 1 great room, 1250 square feet. Looking at 4 zone system of about 2 tons total
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Nice video, I enjoy
Thank you Joel
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Why wouldn’t I use a manual j to loads for all installs and use the manufactures design system software
Always use manual J
The only exception would be if , And I say if manual J cannot give you an accurate Load calculation on a very specific project So therefore always use manual J
Experience will teach you through time with hundreds of projects Of different sorts
You will figure it out
I've got a 2.25 ton MrCool dual zone sitting on a pallet about to be installed in a 960 Sq ft closed cell foam garage, but after seeing your video I think I may be way oversized. Should I exchange it for a 1 ton since I'm still in the return period? What kinds of issues or benefits would come from using the 2.25 ton dual zone? Wish I'd have seen your video earlier.
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Do you know if Mitsubishi and Fujitsu have that soft ware to adjust
I think that mitsubishi does
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Great video, i have a 40x40x14 spray foam metal building, i was considering a 36k Mr Cool single zone mini split, will this size work ok in Louisiana?
yes absolutely that would be perfect
Thank you for making this video! Question for you though. I am building a 1500 sq ft, 3 bedroom barndo with open cell spray foam and an open kitchen/dining/living area. Based on what you said in the video, it looks like I would need a 1.5 ton unit (1 ton/1000 sq/ft in spray foam house). It's a 30x50 footprint as well and all three bedrooms span the 50 foot length and kitchen/dining/living take up about 2/3rd's of the other side. What would you recommend for this setup? Thanks!
I would do multizone mini split and go ahead and install a 3 ton outdoor unit with a few heads inside
or if it's all mostly open I would do a 2 ton 360 ceiling cassettes somewhere in the middle
Here is a video of the 360 czcams.com/video/-Iva8skrIpk/video.html
@@TaddyDigest I watched this video. Those are pretty cool! Also cool that you are into aquaponics. It's on my list for the homestead. Oh, how would you compare the Samsung's to the Mitsubishi's, CH and MrCool units? I am definitely familiar with the Mitsubishi's. They used those to heat and cool our wood huts and conex housing when I was in Afghanistan. I figured if anything could last in that environment, they must be good! lol
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Thinking of using two 3.5 to 4 Ton wall hang units in a 5000 sq ft metal building. Will be closed cell foamed. Not any windows but has three insulated garage doors. 1200 sq ft of the space will be independently heated/cooled. So really about 4000 sq ft in play. Will this work?
Was that airplane hanger closed cell or open cell?
Looking at availability may need to use two air handlers per outdoor unit. Any advantage/disadvantage to having multiple air handlers for common open space?
I don't remember I may have said what it was in the video though
Using more air handlers will cost more but at the same time you get the advantage of having more Air flow which will lead to more comfort and also oh less of a chance of having mold
So how do you join? I subscribed but not seeing how to join- dumb question. Sorry
Valid Question My friend Click the link czcams.com/channels/uMyjTVlkM4xZ5z_eSyoB1w.htmljoin
so would a 36k btu mr cool be too big for a 30x30 metal shop with spray foam?
no
@@TaddyDigest thats what i was hoping, hopefully itll keep it cool lol, thanks for the tip i wasnt sure which to go for the 24k or the 36k
I would go with the 2 t unit 24K
If there's no insulation in there then that's where the 36K would be great
But with spray foam do the 2K
Unless it's a grow facility
@@TaddyDigest its just a home shop to work on my cars and projects, i was thinking the single head 36k just for simplicity, it will be insulated with closed cell foam and osb plywood
It will be fine for cooling but for heating it may it may overheat The space
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@@TaddyDigest Also, just joined. Thanks for the great content you provide to the community!
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Hi Tad, got a 1500 sq ft shop, with about 3.5" of open cell on walls and 5" of open cell on ceiling (in central Texas), but average 14 ft walls and large garage doors (a 14x14, a 10x10, and a 16x8 that are all insulated at about R-10 per mfg). Per your video, I think I can get away with a 2 ton, but want to make sure due to high ceilings and all the doors. I like the 2 ton because it's higher 20.5 seer, and hoping that works (Cooper and Hunter Sophia series). Your thoughts? Thanks in advance!
Hey Andrew
Thank you for watching
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I would definitely go with a 3 ton unit for sure.
Video should be published
I did a live video to answer your question
czcams.com/video/kOmY0sAlXXM/video.html
Richard had a good idea you should do A 3 Ton outdoor unit with 2 --18,000 btu heads
Tad could I get on your email list? I install Samsung mini splits and would like to be able to get your help from time to time.
yes absolutely click the join button let me know when you do and I will get you my email
I joined. Can I get your email.
absolutely tadfuller1@gmail.com
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Awesome Mike thank you for subscribing
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Awesome Jon thank you so much for joining and becoming a member.
I've got some guides I can send you.
if you've got some questions to ask me please do.
those questions can become videos where I can better instruct or help you to understand something. something that you need help with.
Email me at tadfuller1@gmail.com
@@TaddyDigest thanks Tad, I’ll be in touch :)