DIY mini splits ranked by price per BTU

Every capacity on the same $/1,000 BTU axis as the ranking above, so the segments can be compared rather than just listed.

Whether the saving is worth the work is a number, not a slogan: installation cost against the cheapest DIY unit at each size.

$/1,000 BTU	Price	BTU/h	Zones	Efficiency	Volts	System
per 1,000 BTU/h$28.75Best	price$689.99	24,000	Single	21SEER2	220-230V	TABU 24,000BTU Mini Split Air Conditioner wi · 3rd-party All specs Volts 220-230V Line set —
per 1,000 BTU/h$44.44	price$799.99	18,000	Single	19SEER2	208-230V	Electactic SE7203SP 18K Easy DIY All specs Volts 208-230V Line set —
per 1,000 BTU/h$45.83	price$549.98	12,000	Single	18SEER2	115V	Albott DIY 12K Pro Fast-Fit · 3rd-party All specs Volts 115V Line set —
per 1,000 BTU/h$46.67	price$559.99	12,000	Single	18SEER2	220V	Albott Easy DIY 12K 220V · 3rd-party All specs Volts 220V Line set —
per 1,000 BTU/h$47.50	price$569.99	12,000	Single	18SEER2	115V	Albott Easy DIY 12K 115V · 3rd-party All specs Volts 115V Line set —
per 1,000 BTU/h$50.00	price$599.99	12,000	Single	23SEER2	—	TURBRO 12,000 BTU Ductless Mini Split Invert · 3rd-party All specs Volts — Line set —
per 1,000 BTU/h$50.00	price$599.99	12,000	Single	18SEER2	220V	YUMPIE Easy DIY 12,000 BTU 220V · 3rd-party All specs Volts 220V Line set —
per 1,000 BTU/h$50.00	price$899.99	18,000	Single	23SEER2	—	TURBRO 18,000 BTU Ductless Mini Split Invert · 3rd-party All specs Volts — Line set —
per 1,000 BTU/h$54.17	price$649.99	12,000	Single	24SEER2	—	TURBRO 12,000 BTU Ductless Mini Split Invert · 3rd-party All specs Volts — Line set —
per 1,000 BTU/h$64.44	price$579.99	9,000	Single	23SEER2	115V	TURBRO 9,000 BTU Ductless Mini Split 115V · 3rd-party All specs Volts 115V Line set —
per 1,000 BTU/h$71.43	price$2,499.98	35,000	Single	22SEER2	208-230V	PerfectAire Perfect Aire 35000 BTU Quick Connect… · 3rd-party All specs Volts 208-230V Line set 25 ft
per 1,000 BTU/h$73.58	price$2,649.00	36,000	Single	23SEER2	230V	Klimaire DIY 36,000 BTU 23 SEER2 Quick Conne · 3rd-party All specs Volts 230V Line set 25 ft
per 1,000 BTU/h$81.88	price$1,965.00	24,000	Single	23SEER2	230V	Klimaire DIY 24,000 BTU 23 SEER2 Quick Conne · 3rd-party All specs Volts 230V Line set 25 ft
per 1,000 BTU/h$84.39	price$2,025.45	24,000	Single	17SEER2	230V	PerfectAire Perfect Aire 24,000 BTU Mini Split AC &… · 3rd-party All specs Volts 230V Line set 25 ft
per 1,000 BTU/h$99.39	price$1,789.00	18,000	Single	23SEER2	230V	Klimaire DIY 18K Quick Connect · 3rd-party All specs Volts 230V Line set 25 ft
per 1,000 BTU/h$104.14	price$3,749.00	36,000	Single	18SEER2	208-230V	MRCOOL DIY 36K 4th Gen · 3rd-party All specs Volts 208-230V Line set 25 ft
per 1,000 BTU/h$124.08	price$1,489.00	12,000	Single	23SEER2	230V	Klimaire DIY 12,000 BTU 23 SEER2 Quick Conne · 3rd-party All specs Volts 230V Line set 25 ft
per 1,000 BTU/h$132.42	price$1,589.00	12,000	Single	23SEER2	115V	Klimaire DIY 12,000 BTU 23 SEER2 Quick Conne · 3rd-party All specs Volts 115V Line set 25 ft
per 1,000 BTU/h$137.42	price$1,649.00	12,000	Single	19.5SEER2	115V	MRCOOL Easy Pro 12K 5th Gen · 3rd-party All specs Volts 115V Line set 16 ft
per 1,000 BTU/h$138.71	price$3,329.00	24,000	Single	18SEER2	230V	MRCOOL 24000 BTU 230V Ductless Inverter Mini · 3rd-party All specs Volts 230V Line set 25 ft
per 1,000 BTU/h$143.33	price$1,719.99	12,000	Single	17SEER2	115V	PerfectAire Perfect Aire 12,000 BTU Mini Split AC &… · 3rd-party All specs Volts 115V Line set —
per 1,000 BTU/h$150.00	price$1,799.99	12,000	Single	19.5SEER2	115V	MRCOOL DIY 12K 5th Gen All specs Volts 115V Line set 25 ft
per 1,000 BTU/h$155.56	price$2,799.99	18,000	Single	23.5SEER2	230V	Zone Air 18,000 BTU DIY Ductless Mini Split · 3rd-party All specs Volts 230V Line set —
per 1,000 BTU/h$161.61	price$2,909.00	18,000	Single	21SEER2	—	MRCOOL DIY 18K 5th Gen All specs Volts — Line set 25 ft
per 1,000 BTU/h$174.33	price$1,569.00	9,000	Single	17.5SEER2	115V	MRCOOL 9000 BTU Ductless Inverter Mini Split · 3rd-party All specs Volts 115V Line set —
per 1,000 BTU/h$183.33	price$2,199.99	12,000	Single	23SEER2	115V	Zone Air 12,000 BTU DIY Ductless Mini Split 115V · 3rd-party All specs Volts 115V Line set —
per 1,000 BTU/h$185.33	price$1,667.98	9,000	Single	18SEER2	115V	PerfectAire Perfect Aire 9000 BTU Quick Connect · 3rd-party All specs Volts 115V Line set —
per 1,000 BTU/h$187.50	price$2,249.99	12,000	Single	24SEER2	230V	Zone Air 12,000 BTU DIY Ductless Mini Split 230V · 3rd-party All specs Volts 230V Line set —
per 1,000 BTU/h$233.33	price$2,099.99	9,000	Single	23SEER2	115V	Zone Air 9,000 BTU DIY Ductless Mini Split 115V · 3rd-party All specs Volts 115V Line set —
per 1,000 BTU/h$238.89	price$2,149.99	9,000	Single	24SEER2	230V	Zone Air 9,000 BTU DIY Ductless Mini Split 230V · 3rd-party All specs Volts 230V Line set —
per 1,000 BTU/h$256.56	price$2,309.00	9,000	Single	23.6SEER2	115V	MRCOOL DIY 9K 4th Gen · 3rd-party All specs Volts 115V Line set 25 ft

A pre-charged DIY system ships with the refrigerant already sealed inside a line set that connects with threaded quick-connect fittings. That removes the one step a homeowner legally and practically cannot do: evacuating and charging the line set, which needs a vacuum pump, a manifold gauge set and, in the United States, EPA Section 608 certification to handle refrigerant. Removing that step is the entire value proposition, and it is what makes the equipment price the total price.

What it does not remove:

The electrical work

A 115V system often reaches an existing circuit. A 208-230V system needs a dedicated circuit and a disconnect, which in most jurisdictions means a permit and an electrician. That cost is real and it is not in any $/BTU on this site.

Mounting

The outdoor unit needs a pad or wall bracket and the wall needs a three-inch core hole, drilled on a slight downward angle for condensate.

Line set length

The sealed charge supports the length supplied, commonly 16 or 25 feet. Going further generally means a technician after all, at which point the DIY premium bought you nothing.

Permits and inspection

Requirements are local. Some jurisdictions treat a pre-charged system as an appliance install, others do not.

We are not an HVAC contractor and nothing here is installation advice. Check your local code before ordering, not after.

Conventional systems can look dramatically cheaper per BTU, and for a comparison site that would be a tempting table to publish. It would also be dishonest: those systems carry roughly $1,000–$3,500 of installation that a DIY system does not, so putting the two in one ranking would let the cheapest-looking row be the more expensive purchase. If professional-install equipment is catalogued here later, it will sit in its own class with its own crown, and the difference will be stated on the row rather than buried in a footnote.

What counts as a good price per BTU · Size the system first