Kühl KCVM18B30B
window air conditioner · 20,900 BTU cooling · fits ~1,045 sq ft
A window AC rated 20,900 BTU — enough cooling for a room of roughly 1,045 square feet (the 20-BTU-per-square-foot rule).
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No verified online listing
A window AC is a self-install unit: you set it in the window (or wall sleeve), no contractor or refrigerant charge needed. We have not matched a retail listing for this exact model, so we are not linking one. Search your usual retailer for the model number above — and check the certified specs here against whatever you find.
Sized for ~1,045 sq ft — measure your room and check your window type before you buy.
The Verified Label — every certified spec
certified 2026-06-17
status: Active
Cooling & efficiency — source: ENERGY STAR / DOE
Fit & install — does it fit your window?
Efficiency & running cost — computed by Verified HVAC Data
Refrigerant & identity
Compare similar room ACs
Frequently asked questions
Is 20,900 BTU right for my room, or should I size up?
About 1,045 square feet is the guide figure. The next shelf up is 24,000 BTU (22 units), about 1,200 sq ft. Below it, 18,000 BTU (17 units) covers about 900 sq ft. Between two shelves, take the smaller one: oversizing is the usual reason a unit cools but leaves the room clammy, which our sizing calculator explains.
Does the Kühl KCVM18B30B need a special outlet?
Yes. It runs on 230 volts, not the 115-volt outlet a bedroom or living room normally has, so it needs a dedicated circuit installed by an electrician. Budget for that before you buy.
Will the Kühl KCVM18B30B fit my window?
The certification record doesn't publish reliable full dimensions for this unit, so measure your opening and compare against the seller's listing before you buy.
Sources. Certification and CEER from ENERGY STAR room-AC data and the DOE compliance certification database. Cooling capacity, dimensions and refrigerant are the manufacturer-certified values. Annual running cost, suggested room size and the percentile are computed by Verified HVAC Data from published ratings and EIA U.S. average electricity prices — see our methodology. Refrigerant GWP is the IPCC value. We publish no star ratings and take no payment for placement. "Not published" means the source registry doesn't disclose it — we never fill a spec with a guess.