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WoodSlayR 5.8K Views
Sep 14, 2026 3:11 PM

Prime: COSTWAY Blast Pro 12000 BTU 20 SEER2 Mini Split Air Conditioner & Heater

$486

$560

13% off
+ Free S&Hat Amazon
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costway via Amazon has for Prime Members: COSTWAY Blast Pro 12000 BTU 20 SEER2 Mini Split Air Conditioner & Heater on sale for $485.99. Shipping is free.

Thanks to Community Member WoodSlayR for finding this deal.

Features:
  • Ideal for large spaces up to 750 sq.ft.
  • This ductless inverter split ac with heat pump adjusts output smoothly to maintain steady temperatures, which saves energy without sacrificing comfort with a high-efficiency 20 SEER2 rating. You can choose ECO mode to reduce power use even further. GWP of air conditioning refrigerants is 675.
  • This mini split air conditioner allows you to control your comfort from anywhere with wifi connectivity and simple app operation or use voice control (works with Alexa/Google Assistant) and the included remote for quick adjustments at home.
  • Customize your airflow with 7 modes including auto, cool, heat, dry, fan, ECO, and sleep, plus 8 fan speeds for precise control. The 4D airflow design helps distribute air more evenly across the room, while the child lock helps prevent unwanted setting changes.
  • This mini split air conditioner and heater ensures peaceful operation as low as 28 dB, plus a 24H timer for hands-free scheduling. The self-clean function supports fresher performance over time, while the removable and washable filters make routine maintenance simple

Editor's Notes

Written by ValPal2011 | Staff
  • Our research indicates that this offer is $54 lower (10% savings) than the next best available price from a reputable merchant with prices starting from $539.99.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by WoodSlayR
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
costway via Amazon has for Prime Members: COSTWAY Blast Pro 12000 BTU 20 SEER2 Mini Split Air Conditioner & Heater on sale for $485.99. Shipping is free.

Thanks to Community Member WoodSlayR for finding this deal.

Features:
  • Ideal for large spaces up to 750 sq.ft.
  • This ductless inverter split ac with heat pump adjusts output smoothly to maintain steady temperatures, which saves energy without sacrificing comfort with a high-efficiency 20 SEER2 rating. You can choose ECO mode to reduce power use even further. GWP of air conditioning refrigerants is 675.
  • This mini split air conditioner allows you to control your comfort from anywhere with wifi connectivity and simple app operation or use voice control (works with Alexa/Google Assistant) and the included remote for quick adjustments at home.
  • Customize your airflow with 7 modes including auto, cool, heat, dry, fan, ECO, and sleep, plus 8 fan speeds for precise control. The 4D airflow design helps distribute air more evenly across the room, while the child lock helps prevent unwanted setting changes.
  • This mini split air conditioner and heater ensures peaceful operation as low as 28 dB, plus a 24H timer for hands-free scheduling. The self-clean function supports fresher performance over time, while the removable and washable filters make routine maintenance simple

Editor's Notes

Written by ValPal2011 | Staff
  • Our research indicates that this offer is $54 lower (10% savings) than the next best available price from a reputable merchant with prices starting from $539.99.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by WoodSlayR

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12 Comments

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Sep 14, 2026 11:19 PM
132 Comments
Joined Jul 2014
MaartenTSep 14, 2026 11:19 PM
132 Comments
I like this style. 120V easy to run on a single phase. Can even be ran from an inverter something that is much harder with the 208-230v units. I think the price might not be as Wow as some $3xx deals, but my sweet spot. Keep the filters clean and start saving.
1
Sep 15, 2026 12:55 AM
2.3K Comments
Joined Jan 2007
gullzwaySep 15, 2026 12:55 AM
2.3K Comments
I need an 18k unit. The Costway is $800, Yitahome is $594, looks like they are made by the same manufacturer, according to Google?
https://a.co/d/090etm7a
1
Sep 15, 2026 2:11 AM
6.8K Comments
Joined Dec 2004
CaleoSep 15, 2026 2:11 AM
6.8K Comments
Quote from MaartenT View quoted comment :
I like this style. 120V easy to run on a single phase. Can even be ran from an inverter something that is much harder with the 208-230v units. I think the price might not be as Wow as some $3xx deals, but my sweet spot. Keep the filters clean and start saving.
Yep. These are good if you have a small solar setup you want to use to run AC during peak billing hours in the summer.

I've got the Atomi one (12K / 23.9 SEER2) on the way from Costco. Paid $700 so not as cheap obviously but having Costco return policy & 5/7yr warranty support along with the high SEER2 rating seemed worth a bit extra.
Last edited by Caleo September 14, 2026 at 07:22 PM.
Sep 15, 2026 2:40 PM
2.2K Comments
Joined Feb 2008
Kuma1Sep 15, 2026 2:40 PM
2.2K Comments
This is 12000 115V 20 SEER2 WiFi is $380 right now. FS and FR. Extended 3 yr warranty is only $32. Is this better deal or ?

https://www.ebay.com/itm/19838567...swQAvD_BwE
Sep 15, 2026 2:46 PM
38 Comments
Joined Jan 2017
BlueCat999Sep 15, 2026 2:46 PM
38 Comments
Quote from kuma1 View quoted comment :
this is 12000 115v 20 seer2 wifi is $380 right now. fs and fr. extended 3 yr warranty is only $32. is this better deal or ?

https://www.ebay.com/itm/19838567...swqavd_bwe
wifi 2.0!
Sep 16, 2026 1:33 AM
3.4K Comments
Joined Jun 2014
EdEd1190Sep 16, 2026 1:33 AM
3.4K Comments
Quote from Caleo View quoted comment :
Yep. These are good if you have a small solar setup you want to use to run AC during peak billing hours in the summer.

I've got the Atomi one (12K / 23.9 SEER2) on the way from Costco. Paid $700 so not as cheap obviously but having Costco return policy & 5/7yr warranty support along with the high SEER2 rating seemed worth a bit extra.
I finally got my Atomi 12K from Costco up and running today. Nice unit, nice build quality, and Costco return policy worth paying a couple hundred more for me.

Took me a while to get it installed. Had to run a long wire run (12/2 wire on 20 amp circuit), then pour a small concrete slab. Needed to get a vacuum pump and gauges.

And need this adapter for the gauges. https://www.homedepot.com/p/Yello.../205317865

Also, get a small bottle of NYLOG BLUE for the flare nuts so they don't leak. I also got this torque wrench. https://www.amazon.com/dp/B00LCBU...title&th=1 You need the 17mm and 24mm for the Atomi 12K, I didn't want to take the change of "guesstimating" the torque.

This thing is ice-cold. And the heater gets really hot. Very quite also, I can barely even hear it running. Nice remote control and can also control it with smart app.
Last edited by EdEd1190 September 15, 2026 at 06:37 PM.
1
Sep 16, 2026 2:09 AM
6.8K Comments
Joined Dec 2004
CaleoSep 16, 2026 2:09 AM
6.8K Comments
Quote from EdEd1190 View quoted comment :

I finally got my Atomi 12K from Costco up and running today. Nice unit, nice build quality, and Costco return policy worth paying a couple hundred more for me.

Took me a while to get it installed. Had to run a long wire run (12/2 wire on 20 amp circuit), then pour a small concrete slab. Needed to get a vacuum pump and gauges.

And need this adapter for the gauges. https://www.homedepot.com/p/Yello.../205317865

Also, get a small bottle of NYLOG BLUE for the flare nuts so they don't leak. I also got this torque wrench. https://www.amazon.com/dp/B00LCBU...title&th=1 You need the 17mm and 24mm for the Atomi 12K, I didn't want to take the change of "guesstimating" the torque.

This thing is ice-cold. And the heater gets really hot. Very quite also, I can barely even hear it running. Nice remote control and can also control it with smart app.
Check, check, and check! I've spent a few hundred bucks on things needed for the install (vacuum pump+gauge manifold, AC disconnect, liquidtight whip, nylog blue, bracket, lineset cover, fish sticks for electrical, etc.), but it's still going to be significantly cheaper than hiring someone to do it.

My biggest hurdle is going to be the wire run. Mine's also going to be a long run because my main box is on the opposite side of the house - going to have to go up from my basement to the attic through a wall, over, then back down again through two more top/bottom plates, which is going to require opening up the wall in a couple spots in my master bedroom.

I grabbed a wall mount bracket for mine to keep it off the ground since I live in a snowy area (although I don't really plan to use it for heat much, especially in really cold weather since the gas furnace will likely be cheaper) - the wall mount also has long enough 'arms' to ensure appropriate offsets.

Appreciate the info, especially on the flare nut sizes on the 12K; wasn't sure based on the installation guide which ones it uses. I guess I may end up picking up that torque wrench. I was planning on using a 3/8" with a set of crowfoot flare wrenches I already have, but now that I've checked those I definitely don't have a 24mm one.

Mine's set to be delivered this friday but I have company so I probably won't have it installed until the weekend after. Should've gone ahead and ordered it earlier but I've been on the fence since a 12K window unit's been doing the job 'just fine'.
Last edited by Caleo September 15, 2026 at 07:16 PM.

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Sep 16, 2026 2:23 AM
2.2K Comments
Joined Feb 2008
Kuma1Sep 16, 2026 2:23 AM
2.2K Comments
Quote from BlueCat999 View quoted comment :
wifi 2.0!
Not gaming or streaming to the ac, dont even care about the phone app. Is their anything else?
Sep 17, 2026 2:03 AM
184 Comments
Joined Jan 2008
bluersubaruSep 17, 2026 2:03 AM
184 Comments
I am trying to find out how many amps this requires. Would I be able to run 2 on a single 15 amp circuit? I had been looking at a dual zone unit. But having redundancy with 2 separate units is appealing to me.
Sep 17, 2026 3:18 AM
6.8K Comments
Joined Dec 2004
CaleoSep 17, 2026 3:18 AM
6.8K Comments
Quote from bluersubaru View quoted comment :
I am trying to find out how many amps this requires. Would I be able to run 2 on a single 15 amp circuit? I had been looking at a dual zone unit. But having redundancy with 2 separate units is appealing to me.
It probably calls for a 20 amp breaker and 12/2 wiring, but 12K inverter ACs usually don't tend to use more than ~1500W (~13A) at the most. Probably OK on a 15A circuit as long as you're not trying to run anything else demanding on the same circuit.
1
Sep 18, 2026 2:45 PM
3.4K Comments
Joined Jun 2014
EdEd1190Sep 18, 2026 2:45 PM
3.4K Comments
Just bought this for the garage.

I was going to get another Costco Atomi 12K, but they are not on sale any more. Were $699, but now are $999. Even $699 is kind of high, but was worth it for the Costco "forever" return policy. But forget about $999, that's too high.

Now that I have bought all the mini split tools for the install, figured it made sense to get one for the garage that gets really hot during the summer. Currently have a portable A/C in the garage, but it just doesn't cut it. Wanted to get another Costco Atomi, but not for a thousand bucks. The Costway seems like a well respected and reliable brand, so went with this Costway.
Today 11:58 AM
630 Comments
Joined Mar 2007
SavingdownToday 11:58 AM
630 Comments
Are these DIY or is there something/somewhere on thumbtack you get these installed ?

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