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Mini-Splits

Heat and cool a room or a whole home off the sun. Pick a complete single-zone unit, build a multi-zone system, or shop the parts that hold it all together.

1. Hybrid Solar Mini-Splits

Single-zone, runs straight off the sun.

Panels feed the DC input on the outdoor unit. No separate inverter, no battery, no extra box on the wall. Pair with one of our kits for a turnkey install.

EG4 24K BTU Hybrid Solar Mini-Split (AC/DC R32)
EG4

EG4 24K BTU Hybrid Solar Mini-Split (AC/DC R32)

Bigger brother of the 12K hybrid. Same solar-direct DC concept, sized for a 24,000 BTU load: open floor plan, two zones connected by a doorway, a barndominium, a small shop. Important difference: this one needs a 208 to 240 VAC circuit, not 115V. DC solar input is 150 to 380 VDC, up to 2,200W, 20A max. Plan for an 8 to 10 panel string sized to that window. SEER2 around 21, HSPF2 around 7.9. Slightly lower than the 12K because moving more heat per hour costs efficiency. Still well above old-style window units and most single-stage central ACs. R32 refrigerant pre-charged (about 41 oz). Outdoor unit 102 lbs. Lineset max 82 feet, pre-vacuumed quick-connect included. Cooling 32 to 131°F outdoor, heating 5 to 86°F. 5-year limited warranty. Energy Star and AHRI certified. Good fit for a workshop, an off-grid cabin great room, or a small commercial space where AC is the major load.

EG4 12K BTU Hybrid Solar Mini-Split (AC/DC R32)
EG4

EG4 12K BTU Hybrid Solar Mini-Split (AC/DC R32)

This is the model that actually plugs into your solar array. Two power inputs: 115V AC from the grid, and 90 to 380 VDC straight from a string of panels (up to 1,100W, 12A max). Built-in MPPT prioritizes the solar input during the day and hands off to grid power when the panels aren't producing. That means a small array, four to six 300W panels in series, can run the mini-split for free during sunlight hours without an inverter in the loop. Off-grid customers can pair it with a charge controller and a small battery for after-dark cooling. Grid-tied homes use it as a daytime offset that runs whether or not net metering is in play. 12,000 BTU of cooling and heat-pump heating. SEER2 around 22.5, HSPF2 around 9.7. R32 refrigerant pre-charged (about 27 oz). Cooling operating range 32 to 131°F outdoor, heating range 5 to 86°F outdoor. Max lineset 49 feet, pre-vacuumed quick-connect included. Indoor unit 21 lbs, outdoor unit 71 lbs. 5-year limited warranty. Energy Star and AHRI certified.

EG4 Hybrid Solar Window Unit 12000 BTU
EG4

EG4 Hybrid Solar Window Unit 12000 BTU

The window-mount version of the hybrid solar story. 12,000 BTU of cooling in a single chassis that drops into a standard window opening. Lower install lift than a wall-mount mini-split: no lineset, no outdoor unit, no roof penetrations. A window, a 115V dedicated 20A outlet, and the DC solar input if you want to use it. DC input is 75 to 350 VDC, up to 1,200W of solar (12 AWG PV wire, MC4 connectors). On a sunny afternoon, four 300W panels in series will run this unit straight from the array. R32 refrigerant, pre-charged (about 17 oz). Cools spaces up to about 600 square feet. Outdoor operating range 50 to 131°F. Cooling only on this model, no heat pump. 66 lbs total. Window opening size: 15 inches tall by 19 inches wide, 25 inches deep. Energy Star certified, AHRI listed. 5-year limited warranty. This is the option for a renter, a workshop with no wall-mount real estate, or anyone who wants to test the solar-direct concept before committing to a full split system.

2. Multi-Zone Systems

One outdoor unit, multiple indoor zones.

Pick an outdoor unit, then add indoor heads in 12K, 18K, or 24K BTU sizes up to the outdoor's BTU budget (24K supports 3 heads, 36K supports 4). Outdoor units do not ship with heads.

Outdoor units
EG4 36K Multizone Mini-Split AC/DC Outdoor Unit
EG4

EG4 36K Multizone Mini-Split AC/DC Outdoor Unit

The bigger multi-zone hybrid. One outdoor unit, up to four indoor heads, total cooling capacity of 36,000 BTU. Good fit for a small home with four zones, a workshop plus living space, or a multi-bedroom open-floor plan. Hybrid AC/DC power inputs: 208 to 240 VAC for grid, 100 to 410 VDC for solar. Two MPPT ports on this one (the 24K has one), so the array can split into two strings if your roof or ground layout doesn't take a single long run. Build to 3,500W minimum. R32 refrigerant. SEER2 around 22.5, HSPF2 around 10. Same outdoor operating range as the 24K. Outdoor noise 58 to 60 dB(A). 5-year limited warranty. AHRI Certified and Energy Star Certified. Indoor heads sold separately. The configurator on this page caps the build at 36,000 BTU total and four heads. Mix 12K, 18K, and 24K to fit your floor plan.

EG4 24K Multizone Mini-Split AC/DC Outdoor Unit
EG4

EG4 24K Multizone Mini-Split AC/DC Outdoor Unit

The outdoor side of a multi-zone hybrid system. One outdoor unit, up to three indoor heads, total cooling capacity of 24,000 BTU. Mix the head sizes to match how you actually use the rooms: one 12K bedroom and one 12K office, or a 12K and an 18K, or a single 24K head for one big space. Hybrid AC/DC power inputs: 208 to 240 VAC for grid, 100 to 410 VDC for solar. One MPPT port. The unit prioritizes solar during the day and switches to grid when the panels aren't producing. Build the array to hit 2,300W minimum. R32 refrigerant. SEER2 around 22, HSPF2 around 10. Cooling 5 to 131°F outdoor, heating 5 to 86°F outdoor. Outdoor noise 58 to 60 dB(A). 5-year limited warranty. AHRI Certified and Energy Star Certified. Indoor air handlers are sold separately so you spec each zone independently. Pair with the matching line sets (3/8 inch gas valve for the 12K head, 1/2 inch for the 18K and 24K heads) and one comm cable per head. The configurator on this page walks every part.

Indoor heads
EG4 Multizone 24K BTU Indoor Head
EG4

EG4 Multizone 24K BTU Indoor Head

The largest indoor air handler for the multi-zone systems. 24,000 BTU, sized for a big main living area, a small open-floor home zone, or a workshop up to about 1,000 square feet. Pairs with the 1/2 inch pre-charged line set. One head needs one line set and one comm cable to connect back to the outdoor unit. R32 refrigerant inside the system. Same low-noise rating as the smaller heads.

EG4 Multizone 18K BTU Indoor Head
EG4

EG4 Multizone 18K BTU Indoor Head

The middle indoor air handler for the multi-zone systems. 18,000 BTU of cooling and heat-pump heating, sized for a larger living room, a master bedroom, or an open kitchen up to about 800 square feet. Pairs with the 1/2 inch pre-charged line set. One head needs one line set and one comm cable to connect back to the outdoor unit. R32 refrigerant inside the system. Indoor sound as low as 43 dB(A) on low fan speed.

EG4 Multizone 12K BTU Indoor Head
EG4

EG4 Multizone 12K BTU Indoor Head

The smaller indoor air handler for the multi-zone systems. Wall-mounted, 12,000 BTU of cooling and heat-pump heating. Sized for a bedroom, an office, or a small living area up to about 500 square feet. Pairs with the 3/8 inch pre-charged line set. One head needs one line set and one comm cable to connect back to the outdoor unit. R32 refrigerant inside the system. Indoor sound as low as 43 dB(A). Quiet enough for a bedroom at night.

3. AC-Only Mini-Splits

Grid-powered comfort.

No DC solar input. To run these off solar you need a separate hybrid inverter and battery. Better fit if you already have a backup system or just want efficient cooling on grid.

EG4 12K BTU High Efficiency Mini-Split Air Conditioner
EG4

EG4 12K BTU High Efficiency Mini-Split Air Conditioner

Same platform as the 9K, sized up to 12,000 BTU. Rule of thumb: 9K does one room up to about 500 sq ft, 12K does one room or open area up to about 650 sq ft. Same Plug-n-Cool pre-vacuumed lineset, same 115V single-phase wiring, same Wi-Fi app. SEER2 still in the high twenties. Inverter-driven, R32 refrigerant, pre-charged. Heat-pump rated for shoulder-month heating in mild climates. Energy Star certified, AHRI listed, 5-year limited warranty. Pick this if you want EG4 efficiency without the DC solar input. For the same 12K BTU with solar-direct DC, see the 12K Hybrid.

EG4 9K BTU High Efficiency Mini-Split Air Conditioner
EG4

EG4 9K BTU High Efficiency Mini-Split Air Conditioner

The EG4 9K is the entry-size mini-split: 9,000 BTU of cooling and heat-pump heating, sized for a single room up to about 500 square feet. AC-only, runs off a 115V circuit. No DC solar input on this one (see the hybrid line for that). What matters: SEER2 in the high twenties, which means low cooling cost per watt-hour compared to a wall AC or a single-stage central unit. Inverter-driven (the compressor modulates instead of cycling on and off), which is what gets you both the efficiency and the quiet operation. Pre-charged with R32 refrigerant (the newer low-GWP refrigerant replacing R410A). Plug-n-Cool pre-vacuumed quick-connect lineset means a DIY homeowner can hook it up without a vacuum pump or a refrigerant license. Wi-Fi control through the EG4 app. Energy Star certified. 5-year limited warranty. Mount it with the wall bracket kit if you don't have a ground pad next to the install location.

4. Line Sets

Pre-charged refrigerant lines.

Pick the diameter that matches your indoor head size. Each kit comes pre-vacuumed with Plug-N-Cool connectors, no HVAC tech needed.

3/8" gas valve (for 12K heads)
EG4 Mini-Split Line Set Pre-Charged 26 ft 3/8 in (R32, 12K Indoor)
EG4

EG4 Mini-Split Line Set Pre-Charged 26 ft 3/8 in (R32, 12K Indoor)

Pre-charged refrigerant line set for the 12K indoor heads (multi-zone) and the 12K AC/DC single-zone units. 26 feet, 3/8 inch gas valve, 1/4 inch liquid valve. Plug-n-Cool fittings on both ends. R32 refrigerant pre-loaded. Same install procedure as the 16 ft version, sized for runs where the outdoor unit can't sit close to the indoor head.

EG4 Mini-Split Line Set Pre-Charged 16 ft 3/8 in (R32, 12K Indoor)
EG4

EG4 Mini-Split Line Set Pre-Charged 16 ft 3/8 in (R32, 12K Indoor)

Pre-charged refrigerant line set for the 12K indoor heads (multi-zone) and the 12K AC/DC single-zone units. 16 feet, 3/8 inch gas valve, 1/4 inch liquid valve. Plug-n-Cool fittings on both ends. No vacuum pump or refrigerant handling required, just thread the connector by hand and torque. R32 refrigerant pre-loaded. For runs longer than 16 feet, see the 26 ft version.

1/2" gas valve (for 18K and 24K heads)
5. Accessories

The hardware that holds it all together.

Wall bracket for the outdoor unit, communication cable between outdoor and indoor, and line set extensions when the standard length is short.

EG4 Mini-Split Line Set Extension (12K AC/DC)
EG4

EG4 Mini-Split Line Set Extension (12K AC/DC)

Adds 16 feet of line set to a 12K AC/DC single-zone install. Pre-vacuumed, Plug-n-Cool connectors on both ends, same R32 refrigerant load as the original. Documented 3% efficiency loss from the extended run, well within tolerance for most installs. Liquid valve 1/4 inch, gas valve 3/8 inch.

EG4 Mini-Split Comm Cable 30 ft
EG4

EG4 Mini-Split Comm Cable 30 ft

30 ft communication cable between the outdoor mini-split unit and the indoor air handler. Multi-conductor cable rated for the unit's data and control signals. Match the length to your install. For runs longer than 30 ft, see the 50 ft version. One cable per indoor head.

Mini Split Wall Bracket kit
EG4

Mini Split Wall Bracket kit

The wall bracket holds the outdoor unit of a mini-split off the side of the house instead of on a ground pad. Useful when you have no level ground next to the install location, when you want to keep the condenser above snow or leaves or critters, or when the install runs straight up from a basement wall and you want the shortest lineset path. Steel construction with mounting hardware included. Sized for the typical 9K through 24K mini-split outdoor unit, lag-bolts into the wall studs. Pair with any EG4 wall-mount mini-split. The window unit doesn't need this.

Not sure where to start?

The Solar Mini-Split Kit bundles a Hybrid Solar unit with panels, mount, wire, and connectors at one click.

See the Mini-Split Kit