Verdict
Head-to-head · Best Mini Split Air Conditioners

Quilt Ductless Heat Pump (Quilt Mini-Split System) vs Senville LETO 9,000 BTU 115V (SENL-09CD-16)

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

Quilt Ductless Heat Pump (Quilt Mini-Split System) comes out ahead by a clear margin (4.4 vs 4.0). Quilt Ductless Heat Pump (Quilt Mini-Split System) is best for: homeowners without ductwork who want a professionally installed, good-looking heat pump. Read the strengths below before deciding.

Quilt Ductless Heat Pump (Quilt Mini-Split System)
Higher ratedRanked #1 in Best Mini Split Air Conditioners
Quilt Ductless Heat Pump (Quilt Mini-Split System)
2 sourcesall derived

The Quilt is a ductless mini-split heat pump with a slim wall-mounted indoor head, outdoor units that serve two or three zones, and dial and smartphone controls, sold and installed only through certified contractors. Wirecutter's overnight test in the Catskills found it kept a room comfortable at single-digit outdoor temperatures and stayed near 50 dB at full fan speed, and it judged the design and controls a clear improvement on typical mini-splits. Gary Cruz, reviewing five heads in his own home after three months, praised the design, app and support but called the roughly $6,500-per-room price steep. It suits homeowners without ductwork who want an installed, good-looking system and can pay a premium; DIY installers and buyers outside Quilt's contractor network should look elsewhere.

Strengths
  • — Kept Wirecutter's test room warm with outdoor temperatures in the single digits °F
  • — Barely reached 50 dB at top fan speed in Wirecutter's noise test
  • — Slim indoor head with a front cover that can be painted or wallpapered to match a room
Watch-outs
  • — About $6,500 per room installed, steep next to DIY systems such as MrCool
  • — Only available through a limited network of certified contractors
  • — Depends on Wi-Fi; the only offline control was a fixed-temperature power switch
Senville LETO 9,000 BTU 115V (SENL-09CD-16)
Ranked #2 in Best Mini Split Air Conditioners
Senville LETO 9,000 BTU 115V (SENL-09CD-16)
1 sourceall derived$699.99as of Oct 16

The Senville LETO SENL-09CD-16 is a 9,000 BTU ductless mini-split heat pump that runs on a 115V circuit. In a video review after about three weeks of use in his kitchen, Fix It Scotty called it very quiet, inside and out, and economical, and said it would be a win overall if it lasts. The catch is installation: he describes it as a job for a fairly advanced DIYer, because the line set has to be cut, re-flared and vacuumed down with a pump before the refrigerant is released.

Strengths
  • — Very quiet indoors, and Fix It Scotty says the outdoor unit is about as quiet, without the usual compressor grind
  • — Economical: Fix It Scotty cites a $699 retail price for the unit and put his total at under $800, as he already owned the tools
  • — Runs on a 115V, 15-amp dedicated circuit in the 9,000 BTU size, per Fix It Scotty
Watch-outs
  • — Installation needs a fairly advanced DIYer: Fix It Scotty had to trim and re-flare the line set, then vacuum it down with a pump and check for leaks with a gauge set before releasing refrigerant
  • — A dedicated circuit and outdoor disconnect are needed; Fix It Scotty suggests an electrician if you are not comfortable working in your panel
  • — Line set cover and outdoor wall bracket are not included; Fix It Scotty bought both separately

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

How they stack up

Quilt Ductless Heat Pump (Quilt Mini-Split System)

Unlike the Senville LETO 9,000 BTU 115V and the Della Optima Series 12,000 BTU 115V, which are sold as single units, the Quilt is only sold through Quilt's certified contractors with installation in the quote. Like the LG Artcool Deluxe KNSAL, it is a premium heating and cooling system, but its indoor heads are designed to be painted or stained to match the room.

Senville LETO 9,000 BTU 115V (SENL-09CD-16)

Like the Della Optima Series 12,000 BTU 115V, the LETO runs on a 115V circuit, but it is a smaller 9,000 BTU unit, and its listing rates the heat pump to 5F against the LG Artcool Deluxe KNSAL's full heating capacity at -13F. Unlike the Della, which Wired had professionally installed, the LETO's hands-on source installed it himself, line set vacuum included.

Specs side-by-side

SpecQuilt Ductless Heat Pump (Quilt Mini-Split System)Senville LETO 9,000 BTU 115V (SENL-09CD-16)
TypeDuctless mini-split heat pump (heating and cooling)—
Indoor Head Height7 7/8 in—
Outdoor UnitsTwo-zone and three-zone—
Front CoverMatte white or oak veneer; paintable—
ControlsDial thermostat and smartphone app—
Occupancy SensingmmWave radar (Auto-Away)—
InstallationCertified Quilt contractors only—
Cooling Capacity—9,000 BTU
Voltage—115V, 60Hz, 1Ph
Efficiency—21.5 SEER2 (listing)
Refrigerant—R-454B
Heat Pump—Yes, rated to work down to 5F (listing)
Indoor Noise—25 dB (listing)
Line Set—16 ft included
Warranty—5 years parts, 5 years compressor, labor not included (listing)
Model—SENL-09CD-16
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