Mini splits that run on a standard 115 V circuit
The units that can often run from a circuit you already have — which for a single-room installation can mean no electrical work at all.
Every figure here is taken from the manufacturer’s published listing and measured against the rest of the group. We do not install or test mini splits. Where a listing is silent, this site prints not stated rather than a plausible default.
What this group looks like
| Measure | Middle half | Median |
|---|---|---|
| Capacity | 12,000 BTU – 12,000 BTU | 12,000 BTU |
| Claimed coverage | 550 sq ft – 750 sq ft | 750 sq ft |
| Sizing check (derived) | — | 16.0 BTU/sq ft |
| SEER2 | 19 – 20 | 19 |
The middle-half column spans the 25th to 75th percentile, so it describes where most of this group sits rather than being pulled about by one unusual unit.
This is arithmetic, not a load calculation. The sizing check is the unit’s own BTU rating divided by the coverage area it claims, against a rule of thumb of roughly 20 BTU per square foot. It tells you when a listing’s two numbers disagree with each other. It knows nothing about your ceiling height, insulation, window area, climate or which way the room faces — and all of those move the answer. Sizing a system properly is a Manual J calculation and it is a professional’s job.
Against the market as a whole this group claims about as much coverage per BTU as average — a median of 16.0 BTU per square foot against 16.0 overall. Lower means a bolder coverage claim, not a better unit.
What these listings publish
Specification coverage is uneven, and knowing where it runs out is part of shopping honestly.
| Specification | Stated | Share |
|---|---|---|
| Capacity in BTU | 42 | 98% |
| Claimed coverage | 40 | 93% |
| SEER2 | 35 | 81% |
| Noise level | 43 | 100% |
| Circuit voltage | 43 | 100% |
| Refrigerant | 37 | 86% |
What they cost
Bands, not prices — and the equipment is frequently the smaller half of the project once the circuit and the installation are counted.
| Band | Listings | Share |
|---|---|---|
| Under $400 | 8 | 19% |
| $400–700 | 26 | 60% |
| $700–1,200 | 6 | 14% |
| $1,200–2,000 | 3 | 7% |
This is the cheapest install on the site
A 230 V unit needs a dedicated circuit run from the panel, and on a long run to a far bedroom that is a real bill no listing mentions. A 115 V unit can frequently share or reuse an existing circuit, and for a garage conversion or a single bedroom that removes the electrician from the project. Combined with a DIY line set it removes both trades.
The ceiling is physical
A 115 V circuit can only supply so much current, which caps the capacity available at this voltage. In practice that means the class runs out somewhere around 12,000 to 18,000 BTU — enough for a bedroom or a modest living room, not for an open-plan floor. If the arithmetic says you need more, the choice is made for you.
Check the circuit before assuming
Existing is not the same as available. A 15-amp circuit already carrying lighting and outlets may not have the headroom for a compressor cycling on, and a dedicated 20-amp run is still cheaper than a 230 V one. The question is worth asking an electrician even when the answer is encouraging.
Why this class stops at a certain size
A 115 V circuit carries only so much, and that ceiling is why this class holds almost entirely smaller capacities. Above roughly 12,000 BTU the units in this corpus move to 230 V without exception. The voltage question and the capacity question are therefore the same question: choosing a room size above a certain point decides the circuit, and no amount of shopping changes it.
An existing circuit is not any circuit
Running at 115 V often means an outlet already exists; it does not mean the unit can share one. A mini split is a continuous load and generally wants a dedicated breaker even at this voltage — a smaller job than a new 230 V run, and still a job. A listing describing a unit as plug-in is describing the connector, not the circuit it belongs on.
What this class is good at
For a bedroom, an office, a garage conversion or a room addition, a 115 V unit is frequently the whole answer: it fits the load, it avoids the largest single line in a typical installation, and it overlaps heavily with the DIY units for that reason. The limitation only bites when the room is bigger than the class can serve, and at that point the honest comparison includes the electrician.
The refrigerant these ship with
Almost every unit in this corpus has moved from R-410A to R-32 or R-454B, and the small handful still on the old refrigerant are the ones that will be hardest to service in a decade. Both replacements carry a mild flammability classification, which brings rules about line-set routing and minimum room volume that R-410A did not have. For a unit going into a small room — which is most of this class — the room-volume rule is the one worth checking before committing.
Noise, and the figure that is quoted
Nearly every listing here states a decibel rating and the medians are low enough to sound implausible for an air conditioner. They are accurate and they describe the best case: the indoor head, lowest fan speed, at a set distance. The number that matters in a bedroom is the one on the setting that actually holds temperature overnight, which is not published, and the outdoor unit is a separate figure that most listings omit altogether.
Before you buy
Do not size up “to be safe”
An oversized unit short-cycles, never dehumidifies, and leaves the room cold and clammy while looking perfectly functional. Where the arithmetic puts you between two sizes, insulation and window area decide — and a load calculation decides properly.
Price the circuit, not just the box
A 230 V unit needs a dedicated run from the panel, and on a long route that can cost more than the difference between any two units here.
Treat marketing language as a claim
“Whole home”, “ultra quiet” and a square footage on a box are positioning. Look for the number behind each: a BTU rating, a decibel figure, a SEER2 value. Where this site could not find one, it says not stated.
Compare them
The finder below is already filtered to this group. Every result carries its sizing check.
46 mini splits match
DELLA Hyper Heat Lower as -13℉ 12,000 BTU WiFi Mini Split,Work with Alexa,Energy Star 115V 23 SEER2,Cools Up to 550 Sq. Ft,Inverter AC with 1 Ton Pre-Charged Heat Pump & 16.4ft Installation Kits
- Sizing check
- 21.8BTU/sq ft
- Capacity
- 12000BTU
- SEER2
- 23.0
- Noise
- 27dB
- Circuit
- 115 V
- Refrigerant
- R-454B
Rated for
550sq ft
12,000 BTU · 500 – 750 sq ft · 17 mini splits
SEER2 efficiency
23.0SEER2
+15% vs the 20.0 median — more efficient than most in its class
Rated area is 0% against the class median of 550.
Manastin 12000BTU Mini Split AC & Heating System, 19 SEER2, 115V
- Sizing check
- 16.0BTU/sq ft
- Capacity
- 12000BTU
- SEER2
- 19.0
- Noise
- 41dB
- Circuit
- 115 V
- Refrigerant
- R-32
Rated for
750sq ft
12,000 BTU · 750 – 1,000 sq ft · 30 mini splits
SEER2 efficiency
19.0SEER2
0% vs the 19.0 median — typical for its class
Rated area is 0% against the class median of 750.
12000BTU Mini Split Air Conditioner& Heater, 17 SEER2 𝟏𝟏𝟓𝐕 Wall-Mounted AC Unit Cools Rooms up to 750 Sq. Ft, Energy Efficient Inverter AC with Heat Pump
- Sizing check
- 16.0BTU/sq ft
- Capacity
- 12000BTU
- SEER2
- 17.0
- Noise
- 26dB
- Circuit
- 115 V
- Refrigerant
- R-32
Rated for
750sq ft
12,000 BTU · 750 – 1,000 sq ft · 30 mini splits
SEER2 efficiency
17.0SEER2
-11% vs the 19.0 median — less efficient than most in its class
Rated area is 0% against the class median of 750.
Rellytech Mini Split AC/Heating System, 12000 BTU, 19 SEER2 115V/110V
- Sizing check
- 16.0BTU/sq ft
- Capacity
- 12000BTU
- SEER2
- 19.0
- Noise
- 42dB
- Circuit
- 115 V
- Refrigerant
- R-32
Rated for
750sq ft
12,000 BTU · 750 – 1,000 sq ft · 30 mini splits
SEER2 efficiency
19.0SEER2
0% vs the 19.0 median — typical for its class
Rated area is 0% against the class median of 750.
12000 BTU Mini Split Air Conditioner, 115V 22 SEER2 AC & Heat Pump
- Sizing check
- 16.0BTU/sq ft
- Capacity
- 12000BTU
- SEER2
- 22.0
- Noise
- 23dB
- Circuit
- 115 V
- Refrigerant
- R-32
Rated for
750sq ft
12,000 BTU · 750 – 1,000 sq ft · 30 mini splits
SEER2 efficiency
22.0SEER2
+16% vs the 19.0 median — more efficient than most in its class
Rated area is 0% against the class median of 750.
Albott 12,000 BTU DIY Mini Split AC & Heating System with Pro Fast-Fit Set
- Sizing check
- 16.0BTU/sq ft
- Capacity
- 12000BTU
- SEER2
- 18.0
- Noise
- 29dB
- Circuit
- 115 V
- Refrigerant
- R-32
Rated for
750sq ft
12,000 BTU · 750 – 1,000 sq ft · 30 mini splits
SEER2 efficiency
18.0SEER2
-5% vs the 19.0 median — typical for its class
Rated area is 0% against the class median of 750.
Tehanld 12000 BTU Mini Split Air Conditioner, 17 SEER2 115V Energy Efficient AC Inverter Air Conditioner & Heater Pump System, Cools Up to 750 Sq.Ft, Complete Installation Kit, Upgraded Version
- Sizing check
- 16.0BTU/sq ft
- Capacity
- 12000BTU
- SEER2
- 17.0
- Noise
- 41dB
- Circuit
- 115 V
- Refrigerant
- R-32
Rated for
750sq ft
12,000 BTU · 750 – 1,000 sq ft · 30 mini splits
SEER2 efficiency
17.0SEER2
-11% vs the 19.0 median — less efficient than most in its class
Rated area is 0% against the class median of 750.
12000BTU Mini Split Air Conditioner Heat Pump, 19 SEER2 Inverter Compressor AC Unit Cools Rooms up to 750 Sq. Ft, 115V Ductless Split AC with Pre-Charged Condenser & Installation Kit(White)
- Sizing check
- 16.0BTU/sq ft
- Capacity
- 12000BTU
- SEER2
- 19.0
- Noise
- 38dB
- Circuit
- 115 V
- Refrigerant
- R-32
Rated for
750sq ft
12,000 BTU · 750 – 1,000 sq ft · 30 mini splits
SEER2 efficiency
19.0SEER2
0% vs the 19.0 median — typical for its class
Rated area is 0% against the class median of 750.
Albott Easy DIY Series 12,000 BTU 115V Mini Split AC & Heat Pump, 18 SEER2
- Sizing check
- 16.0BTU/sq ft
- Capacity
- 12000BTU
- SEER2
- 18.0
- Noise
- 29dB
- Circuit
- 115 V
- Refrigerant
- R-32
Rated for
750sq ft
12,000 BTU · 750 – 1,000 sq ft · 30 mini splits
SEER2 efficiency
18.0SEER2
-5% vs the 19.0 median — typical for its class
Rated area is 0% against the class median of 750.
MEPTY 12000BTU Mini Split AC/Heating System, 19 SEER2 Energy Efficient Mini Split Air Conditioner with Heat Pump, 110V Cools Up to 750sq.ft, Ductless Inverter AC Unit with Pre-Charged Condenser
- Sizing check
- 16.0BTU/sq ft
- Capacity
- 12000BTU
- SEER2
- 19.0
- Noise
- 26dB
- Circuit
- 115 V
- Refrigerant
- R-32
Rated for
750sq ft
12,000 BTU · 750 – 1,000 sq ft · 30 mini splits
SEER2 efficiency
19.0SEER2
0% vs the 19.0 median — typical for its class
Rated area is 0% against the class median of 750.
ZAFRO 12000 BTU Mini Split Air Conditioner and Heater 22 SEER2, 115V
- Sizing check
- 16.0BTU/sq ft
- Capacity
- 12000BTU
- SEER2
- 22.0
- Noise
- 24dB
- Circuit
- 115 V
- Refrigerant
- R-32
Rated for
750sq ft
12,000 BTU · 750 – 1,000 sq ft · 30 mini splits
SEER2 efficiency
22.0SEER2
+16% vs the 19.0 median — more efficient than most in its class
Rated area is 0% against the class median of 750.
Senville LETO Mini Split Air Conditioner, Heat Pump, White, 12000 BTU
- Sizing check
- 17.1BTU/sq ft
- Capacity
- 12000BTU
- SEER2
- not stated
- Noise
- 28dB
- Circuit
- 115 V
- Refrigerant
- R-454B
Rated for
700sq ft
12,000 BTU · 500 – 750 sq ft · 17 mini splits
SEER2 efficiency
SEER2 not stated, so efficiency cannot be compared.
Rated area is +27% against the class median of 550.
Related
- The full mini split finder — unfiltered, every class.
- What size mini split do I actually need? — the full table.
- How we compile these figures.