Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
frontpageSlick_Drone posted Jul 14, 2026 5:10 PM

TCL 550-sq-ft 12,000 BTU Smart Inverter Window Air Conditioner

$330

$500

34% off
+ Free S&Hat Best Buy
6K Views
Get Deal at Best Buy
Deal Details
Best Buy has TCL 550-sq-ft 12,000 BTU Smart Inverter Window Air Conditioner (H12W4MW) on sale for $329.99. Shipping is free.

Thanks to community member Slick_Drone for finding this deal.

Features:
  • Experience powerful cooling with the Q-Series, boasting an impressive 12000 BTU capacity that effortlessly cools rooms up to 550-sq. ft. on those scorching summer days
  • Enjoy stronger, more powerful performance that's ultra-quiet (down to 40dBs) with Innovative sound-reducing inverter technology
  • Unlock impressive energy savings up to 38% with TCL's AI Inverter technology; The Q-Series also achieved Energy Star's Most Efficient Certification
  • Reach cooler temperatures more quickly and consistently without any harsh noises or heat spikes with the TCL proprietary Smart Inverter algorithm
  • The Q-Series features a built-in pre-assembled frame, ensuring a significantly easier and faster setup compared to traditional ACs (Window Size Requirement: 26-36 inch width, 14.5 inch opening height)

Editor's Notes

Written by megakimcheelove | Staff
  • Our research indicates that this offer is $118.01 lower (26% savings) than the next best available price from a reputable merchant with prices starting from $448.
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion. 

Original Post

Written by Slick_Drone
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Best Buy has TCL 550-sq-ft 12,000 BTU Smart Inverter Window Air Conditioner (H12W4MW) on sale for $329.99. Shipping is free.

Thanks to community member Slick_Drone for finding this deal.

Features:
  • Experience powerful cooling with the Q-Series, boasting an impressive 12000 BTU capacity that effortlessly cools rooms up to 550-sq. ft. on those scorching summer days
  • Enjoy stronger, more powerful performance that's ultra-quiet (down to 40dBs) with Innovative sound-reducing inverter technology
  • Unlock impressive energy savings up to 38% with TCL's AI Inverter technology; The Q-Series also achieved Energy Star's Most Efficient Certification
  • Reach cooler temperatures more quickly and consistently without any harsh noises or heat spikes with the TCL proprietary Smart Inverter algorithm
  • The Q-Series features a built-in pre-assembled frame, ensuring a significantly easier and faster setup compared to traditional ACs (Window Size Requirement: 26-36 inch width, 14.5 inch opening height)

Editor's Notes

Written by megakimcheelove | Staff
  • Our research indicates that this offer is $118.01 lower (26% savings) than the next best available price from a reputable merchant with prices starting from $448.
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion. 

Original Post

Written by Slick_Drone

Community Voting

Deal Score
+22
Good Deal
Get Deal at Best Buy

Join The Conversation

Share information with the community. Please follow our Community Guidelines and be kind!

11 Comments

Sign up for a Slickdeals account to remove this ad.

Jul 14, 2026 8:05 PM
333 Posts
Joined Nov 2016
JoedelalineaJul 14, 2026 8:05 PM
333 Posts
Will this work for a large dog house?
I think it is overkill
1
Jul 14, 2026 8:40 PM
391 Posts
Joined Feb 2010
maz021Jul 14, 2026 8:40 PM
391 Posts
Quote from Joedelalinea :
Will this work for a large dog house?I think it is overkill
If your dog house is 550 sq ft it would be perfect 👍
5
Jul 14, 2026 9:52 PM
1,432 Posts
Joined Dec 2008
rjsmith2007Jul 14, 2026 9:52 PM
1,432 Posts
Quote from Joedelalinea :
Will this work for a large dog house?
I think it is overkill
I use a couple similar to this to cool about 900sq ft. Most of the time I can get by with one.
Yesterday 1:40 PM
206 Posts
Joined Jan 2018
SnowbearzYesterday 1:40 PM
206 Posts

Our community has rated this post as helpful. If you agree, why not thank Snowbearz

Inverter technology is a game-changer for home cooling. Instead of the harsh, energy-draining "on/off" cycles of traditional air conditioners, an inverter compressor intelligently throttles down once your target temperature is reached. This constant, micro-adjusted output maintains a highly stable climate and significantly reduces long-term energy consumption. Think of it as a "variable BTU" unit (up to 12k BTU).
4
Yesterday 11:29 PM
3,128 Posts
Joined Nov 2010
smarttYesterday 11:29 PM
3,128 Posts
Quote from Joedelalinea :
Will this work for a large dog house?
I think it is overkill
You could save yourself some money by just apologizing to your wife. Doesn't matter if you are guilty or not.
2
Yesterday 11:55 PM
4,158 Posts
Joined Nov 2013
JumpstarYesterday 11:55 PM
4,158 Posts
Quote from smartt :
You could save yourself some money by just apologizing to your wife. Doesn't matter if you are guilty or not.
Since the apology only works when accompanied by a gift, I'm certain this option will be cheaper than the apology+gift option.
1
Today 12:11 AM
9,415 Posts
Joined Dec 2014
LEOMHK1.0Today 12:11 AM
9,415 Posts
Quote from Joedelalinea :
Will this work for a large dog house?
I think it is overkill
Get your dog as swamp cooler.

Sign up for a Slickdeals account to remove this ad.

Today 12:38 AM
669 Posts
Joined May 2017
BillytheGOATToday 12:38 AM
669 Posts
Quote from Snowbearz :
Inverter technology is a game-changer for home cooling. Instead of the harsh, energy-draining "on/off" cycles of traditional air conditioners, an inverter compressor intelligently throttles down once your target temperature is reached. This constant, micro-adjusted output maintains a highly stable climate and significantly reduces long-term energy consumption. Think of it as a "variable BTU" unit (up to 12k BTU).
What about if it's during a power outage and I don't know if it'll reach target temp because the rest of the house has no AC? Which would be the best in that scenario? Or would the best scenario would be to just keep an inverter one at like 78? I would buy the Midea 8k BTU for $350 instead.
Original Poster
Pro
Today 1:28 AM
7,144 Posts
Joined Nov 2017
Slick_DroneToday 1:28 AM
Original Poster
Pro
7,144 Posts
Quote from BillytheGOAT :
What about if it's during a power outage and I don't know if it'll reach target temp because the rest of the house has no AC? Which would be the best in that scenario? Or would the best scenario would be to just keep an inverter one at like 78? I would buy the Midea 8k BTU for $350 instead.
Inverter will use less power and pull less draw, as a traditional AC will need to draw more when the compressor cycles on at full wattage. 12k inverter can run lower, but an 8k cannot run higher.

Otherwise, hard to answer your question without more information. What size space are you trying to cool? How are you cooling during a power outage?
Today 1:31 AM
1,014 Posts
Joined Apr 2008
vsspamToday 1:31 AM
1,014 Posts
The TCL has a CEER rating of 11.5 and is NOT Energy Star Rated. A CEER (Combined Energy Efficiency Ratio) measures the energy efficiency of window and portable air conditioners by dividing the cooling capacity (BTUs) by the total power consumed (Watts)

The Midea U Shaped window Air Conditioner CEER is 14.5 to 15 and is Energy Star Rated.

The Hisense U Shaped window Air Conditioner CEER is 15 and is Energy Star Rated.

The Midea and Hisense (both inverter) are available at Costco and Amazon (on sale earlier this year and typically clearanced at the summer's end, if not sold out)

Your choice.

I have both Midea U (8K, 10K, and 12K) and Hisense U 8K. I prefer the Midea, but the Hisense is OK (lower profile, but slightly noiser). P.S. I have a large house with central air and use the window ACs to cool bedrooms at night or add cooling to living areas (I am retired and kids have grown up, moved out). HOA restrictions are the main hurdle.
Last edited by vsspam July 15, 2026 at 06:49 PM.
Today 1:32 AM
2,671 Posts
Joined Jan 2004
holysinToday 1:32 AM
2,671 Posts
Heads up, the listed ceer on the page is 11 but if you read the energy bit (or search the model) the actual ceer is 15 putting it at the same ceer as the latest midea inverters. (also it weighs 60lbs which is pretty standard for 12k btu)
Last edited by holysin July 15, 2026 at 10:18 PM.
1

Join The Conversation

Share information with the community. Please follow our Community Guidelines and be kind!

Popular Deals

Trending Deals