Editor's pick
WindowENERGY STAR
LG Dual Inverter LW1022IVSM
Cooling
10,000 BTU
Covers
450 ft²
Efficiency
15 CEER
Noise
44 dB
$429 est.
typical retail priceIndependent · data-driven · freeFind the right AC
Find the right AC
in 60 seconds.
Answer a few questions about your room and we'll size it, estimate the running cost, and match you to the best-value units — no fluff, no sponsored rankings.
58
units compared
units compared
50
states covered
states covered
100%
independent
independent
⚡ HVAC Pulse
● Before You Turn Up the Heat : What Is Your HVAC System Trying to Tell You ? — newsargus.com● 2005 : HVACR Industry Rallied to Help Hurricane Katrina Victims — achrnews.com● Iowa weather : Cold snap prompts HVAC , furnace tune - ups — kcci.com● Third Annual HVAC Homeowner Study , Part 1 — achrnews.com● Want a free heat pump ? Government offering no - cost retrofits to low income households in N . L . — cbc.ca● HelloNation Examines Repair vs Replace HVAC Decisions With Insights From HVAC Expert Leslie Roe — prnewswire.com● Lewisville HVAC Company Southern Comfort Mechanical Sponsors Santa Hustle Dallas to Spread Holiday Cheer Across North Texas — baltimorestar.com● Hvac Panel Car Bus Truck HVAC Climate Air Conditioner Control Panel Bus Air Conditioning Control System I . 1285493351 Ac Control Panel — roarmag.org● HVAC maintenance tips : What to know — berkshireeagle.com● Conotton Valley approves $48,000 for 70 marching band uniforms — Your Ohio News● Norwalk School Board Approves Oviatt HVAC Agreement, Accepts High School Roof Project — Knia / Krls● Andy and Andrew Garza were here to give us a look at what a new HVAC system may look like — Headtopics● HVAC technicians share tips to get your furnace ready for winter — Https://www.kcrg.com● Women in HVACR and Carrier team up to award $55,000 in scholarships — Pr Newswire● C & C Heating & Air Conditioning shares steps to take before the first freeze arrives — Pr Newswire● 48" Air Conditioner Fence Privacy Screen for $123 + free shipping — Dealnews● Before You Turn Up the Heat : What Is Your HVAC System Trying to Tell You ? — newsargus.com● 2005 : HVACR Industry Rallied to Help Hurricane Katrina Victims — achrnews.com● Iowa weather : Cold snap prompts HVAC , furnace tune - ups — kcci.com● Third Annual HVAC Homeowner Study , Part 1 — achrnews.com● Want a free heat pump ? Government offering no - cost retrofits to low income households in N . L . — cbc.ca● HelloNation Examines Repair vs Replace HVAC Decisions With Insights From HVAC Expert Leslie Roe — prnewswire.com● Lewisville HVAC Company Southern Comfort Mechanical Sponsors Santa Hustle Dallas to Spread Holiday Cheer Across North Texas — baltimorestar.com● Hvac Panel Car Bus Truck HVAC Climate Air Conditioner Control Panel Bus Air Conditioning Control System I . 1285493351 Ac Control Panel — roarmag.org● HVAC maintenance tips : What to know — berkshireeagle.com● Conotton Valley approves $48,000 for 70 marching band uniforms — Your Ohio News● Norwalk School Board Approves Oviatt HVAC Agreement, Accepts High School Roof Project — Knia / Krls● Andy and Andrew Garza were here to give us a look at what a new HVAC system may look like — Headtopics● HVAC technicians share tips to get your furnace ready for winter — Https://www.kcrg.com● Women in HVACR and Carrier team up to award $55,000 in scholarships — Pr Newswire● C & C Heating & Air Conditioning shares steps to take before the first freeze arrives — Pr Newswire● 48" Air Conditioner Fence Privacy Screen for $123 + free shipping — Dealnews
Start here
Three ways to cool smarter
Size it right
Our BTU calculator factors in climate, sun, insulation and ceiling height — not just square footage.
Size my roomCompare the field
Sort 45+ top units by efficiency, noise, price and smart features in one honest spec table.
Open the comparisonFind an HVAC pro
Need it installed or repaired? Browse top-rated, established HVAC contractors across all 50 states.
Find a pro near me33→16BTU per ft² — small rooms need double the cooling density of big ones
40%of window ACs people buy are the wrong size for the room
$300+typical yearly saving from a right-sized, efficient unit
60 secaverage time to a recommendation with our calculator
Editor-tracked
See full comparison Popular units right now
Spec-matched value picks across window, portable and mini-split — chosen on the data, not paid placement.
Best efficiency
Mini-splitENERGY STAR
MRCOOL DIY 4th Gen 12K
Cooling
12,000 BTU
Covers
500 ft²
Efficiency
22 SEER2
Noise
32 dB
$1099 est.
typical retail price
Best portable
Portable
Midea Duo MAP12S1TBL-A
Cooling
12,000 BTU
Covers
450 ft²
Efficiency
14.7 CEER
Noise
42 dB
$579 est.
typical retail price“Check Price” opens the retailer’s listing in a new tab. Prices are set by the retailer.
For installs & repairs
Need a real human to install it?
Mini-splits and central systems need a licensed pro. Browse established, top-rated HVAC contractors across all 50 states — ratings, specialties, and experience at a glance.
4.8★+
avg. Google rating of listed pros~50 yrs
avg. time in businessFind a pro near you
Top-rated AC repair, install & maintenance contractors across all 50 states.
Browse HVAC prosLocal guides
All state guides AC sizing & costs, state by state
Climate, humidity, and electricity rates change the right answer — see what cooling really costs where you live.
FloridaTexasArizonaLouisianaGeorgiaMississippiAlabamaNevadaSouth CarolinaOklahomaArkansasNorth CarolinaKansasTennesseeMissouriKentuckyDelawareMarylandVirginiaNew MexicoNebraskaIowaIllinoisCaliforniaNew JerseyIndianaSouth DakotaWest VirginiaOhioPennsylvaniaNew YorkMichiganMassachusettsMinnesotaWisconsinConnecticutColoradoUtahWashingtonRhode IslandOregonIdahoNorth DakotaNew HampshireMaineMontanaVermontWyomingHawaiiAlaska
Latest guides
All guides Honest, no-nonsense guides
FAQ
Common questions
Is CoolVerdict free to use?
Yes — the BTU calculator, comparison tools, buying guides, and HVAC-contractor directory are all free, with no sign-up required.
Is CoolVerdict independent?
Yes. Recommendations are based on specs and data, not paid placement — there are no sponsored rankings. Some retailer links do earn us a commission (as an Amazon Associate we earn from qualifying purchases), at no extra cost to you and with no effect on what we recommend or how units rank. See our affiliate disclosure for the details.
Where does CoolVerdict’s data come from?
Product specs come from manufacturer documentation and independent testing, shown with each unit’s true efficiency metric (CEER, EER, SEER, or SEER2). Contractor listings are compiled from public information. See How we rate.
How accurate are the running-cost estimates?
They are estimates based on each unit’s efficiency, typical usage of about 8 hours a day, and average residential electricity rates — your actual cost varies with your utility rate and habits. The calculator personalizes it to your room and state.