Frontpage Deal

Costco Members: MRCOOL DIY 18K BTU Mini-Split Air Conditioner & Heat Pump

$1300
$1,299.99
+ Free Shipping
+59 Deal Score
82,896 Views
Costco Wholesale has for their Members: MRCOOL DIY 18K BTU Mini-Split Air Conditioner and Heat Pump with Wi-Fi Smart Controller (DIY-18-HP-230AE) on sale for $1299.99. Shipping is free.

Thanks community member Fourgonbound for sharing this deal

Note, you must be a Costco Member and signed into your account to view sale pricing and purchase at sale price. Refer to the forum thread for additional deal ideas and discussion.

Key Features:
  • The MRCOOL DIY series comes with pre-charged line sets alleviating one major obstacle to amateur installation in a single stroke.
  • Functionality for Apple and Android smart devices; works with Amazon Alexa; works with Google Assistant.
  • Refrigerant leakage detection ensures your system remains operating efficiently without degradation due to undetected corrosion.
  • Control your MRCOOL DIY anywhere, on your Android or Apple smart device, with the new MRCOOL Remote app.
  • MRCOOL DIY temperature compensation technology help keeps you comfortable in any weather conditions.
  • Low ambient cooling: cooling down to 5°F - this feature makes the MRCOOL DIY the ideal system for computer server rooms, greenhouses, and any other application that requires cooling all year.
  • Gold fin condenser: corrosion resistant, condenser is built to resist long term corrosion.

Editor's Notes & Price Research

Written by
  • About this deal:
    • This matches the previous Frontpage Deal from several days ago.
    • Our research indicates that MRCOOL DIY 18K BTU Mini-Split Air Conditioner and Heat Pump with Wi-Fi Smart Controller is $268.01 less (~17% Savings) than the next best price from a reputable merchant with prices starting from $1568 at the time of this posting.
  • About this product:
    • Includes 7-year compressor warranty and 5-year parts warranty.
    • Will be Delivered in Two Boxes.
  • About this store:
    • To view the Costco return policy click here. -Corwin
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Edited July 15, 2021 at 02:29 PM by
Both DIY MRCOOL mini-splits 18k and 24k BTUs are back on Costco.com!

https://www.costco.com/mrcool-diy...73104.html $1299.99

https://www.costco.com/mrcool-diy...73056.html $1499.99

Both are eligible for Fed Tax credit of $300
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Created 07-12-2021 at 04:00 PM by Fourgonbound
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evanl16 asked this question on 07-13-2021 at 11:00 AM
07-13-2021 at 11:00 AM
25 feet
doom12 asked this question on 07-14-2021 at 12:19 PM
07-14-2021 at 12:31 PM
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This advice applies very well to conventional ac units that only have 1 speed, or the "new innovation (lol)" of having two whole speeds. But with mini split inverter technology they can run at virtually any variable speed. That's what makes them whisper quiet most of the time. You still don't want to go too big because they will get that swampy/musty smell in them from running too slow constantly, but they are definitely more forgiving than the huge central ac units that the industry refuses to admit is archaic. I converted my house over years ago from an 8 SEER unit from 1995 to multiple mini splits that all run at 19-22 SEER. Energy bill is a third what it used to be or less and I did not have to spend 8-15k dollars on a 13 SEER "modern" central unit that would have saved me far less per month. Was able to afford each unit with cash every few months and did not have to finance a thing. If one dies, it's a small relatively cheap fix and you upgrade to the newest technology. These are a win-win all around in my opinion.
1) Mini split systems can be oversized. It will not affect humidity removal like it does with standard on/off single stage compressor systems.

A 18,000 btu mini split I installed can perform a minimum of 5,400 BTU's.
I'm not saying install a 18k system where a 6K is needed, but installing a 18k system where you need 12K will not cause you to have high humidity.

2) 700sq feet per ton should not be used for everyone. Region and building design determine cooling and heading load. Parts of Michigan with great insulation may only need 1 ton per 1,000 sq ft. An area of Texas with bad insulation may need 1 ton per 300- 350 sq feet.

3) You must also factor in heating performance in your region and unit specifications. A 12,000 BTU cooling unit may get 16,000 BTU of heat at 47F, however it may drop to 8,000 BTU at 5F.
Bought the 24K, but wish they'd sell the 12K since I think 18K would be too much for a bedroom.

18K = $1,299.99
24K = $1,499.99

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#3
What is the price for the 18k and 24k? The price is hidden for me as I'm not yet a member.
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Bought the 24K, but wish they'd sell the 12K since I think 18K would be too much for a bedroom.

18K = $1,299.99
24K = $1,499.99
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Last edited by bbbc July 12, 2021 at 04:31 PM.
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I'm looking to put one in a 660 square ft garage with 9.5ft ceiling. Would the 24k be overkill? I like the idea of the stronger unit to help bring the temp back to normal after a garage door is opened to bring a car in/out. What do you all think?
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#6
Quote from mikeworkman01 :
I'm looking to put one in a 660 square ft garage with 9.5ft ceiling. Would the 24k be overkill? I like the idea of the stronger unit to help bring the temp back to normal after a garage door is opened to bring a car in/out. What do you all think?
24k is overkill IMO, 18k is perfect and my garage is 550sqft with 8' ceilings and would love to get the 12k one...
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Quote from Fourgonbound :
24k is overkill IMO, 18k is perfect and my garage is 550sqft with 8' ceilings and would love to get the 12k one...
About how long after you open a garage door does it take for the temp to go back?
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Quote from Fourgonbound :
would love to get the 12k one
It doesn't look like Costco ever carried the 12k version per my searches of past SD threads. Wish they did.
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Quote from bbbc :
It doesn't look like Costco ever carried the 12k version per my searches of past SD threads. Wish they did.
Same. Sam's club has it but OOS. I don't mind wiring 220v but I would just be fine with the 12k and 110v is just easier.
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Quote from Fourgonbound :
24k is overkill IMO, 18k is perfect and my garage is 550sqft with 8' ceilings and would love to get the 12k one...
What about a 200sqrft barn style shed with 13ft tall ceilings. Will be insulated and located in northern Utah. From my research I landed on 12k for 200sqrft, but I'm not sure if that is taking into account the tall ceiling.
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#11
Quote from aklimaj :
What about a 200sqrft barn style shed with 13ft tall ceilings. Will be insulated and located in northern Utah. From my research I landed on 12k for 200sqrft, but I'm not sure if that is taking into account the tall ceiling.
Depends, do you care about having the last 3-5 feet as cool as below? 13' is ~60% more height than standard 8' ceilings and I believe the 12k is fine for 500sqft @ 8' ceiling. So it should be totally fine for your barn.
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#12
Nice! 18k and 24k are both back in stock. I previously posted the other Costco MrCool deals and saw that they were still out earlier this afternoon. Wish they still have the 12k system available since it would help a lot of people out here with the ease of install since that system runs off of 115VAC.
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Quote from Fourgonbound :
Depends, do you care about having the last 3-5 feet as cool as below? 13' is ~60% more height than standard 8' ceilings and I believe the 12k is fine for 500sqft @ 8' ceiling. So it should be totally fine for your barn.
Great thanks! Sounds like a 12k would work. I plan on using a mini split for heat in the winter as well. Is there any benefit to over sizing the system?
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Quote from aklimaj :
Great thanks! Sounds like a 12k would work. I plan on using a mini split for heat in the winter as well. Is there any benefit to over sizing the system?
I don't think so. I mean except for having to wire a 220v circuit and that bigger units usually cost more. I don't see the issue. Perhaps bigger units can be louder too?
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Quote from aklimaj :
Great thanks! Sounds like a 12k would work. I plan on using a mini split for heat in the winter as well. Is there any benefit to over sizing the system?
You don't want to oversize an AC system. Part of what cools a room is the heat being pumped from the inside to the outside, but the other part is the humidity being removed. If you get an oversized system it won't cycle on long enough to remove the humidity so you will end up putting the temperature lower than you really need just to get the system to turn on longer so it will remove the humidity. For a 1-story structure you can get 700 SqFt per 1 ton. I do not see the tonnage of these units so you may need to contact them to find out. The heating is measured in BTUs.
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