Airspool MS12 Solar/Hybrid Air Conditioner and Heater (12,000 BTU)

The indoor unit operates at library-level quiet and most people forget it is running. The outdoor unit is comparable to a normal conversation. There is no jarring on/off cycling like traditional AC units because the inverter compressor ramps smoothly.

About 500 sq ft, which is ideal for a large bedroom, living room, studio, garage, workshop, ADU, or guest room. If you need twice the coverage, check out the MS24 for around 1,000 sq ft.

No. The MS12 works perfectly on a standard 15-amp, 120V outlet with no solar required. Add panels whenever you are ready. Many customers start on grid and add solar later.

About 1,500 watts, which is usually 3-4 standard panels. Budget around $400-$600 for panels plus mounting hardware. A little under is fine because grid power fills in automatically. A little over extends your free-cooling hours.

No big deal either way. Too little solar means grid power fills in automatically and seamlessly. Too much means the excess voltage simply goes unused with no damage and no problems. The system is designed to be flexible and forgiving.

A standard 15-amp, 120V household outlet. That is the same outlet you plug a lamp or TV into. No electrician needed and no new circuits. The MS12 draws about 8-9 amps, so we recommend not sharing the circuit with other high-draw appliances.

Most first-timers finish in 2-4 hours. The Quick ’n’ Easy^TM twist connections take about 5 minutes. The rest is mounting the wall bracket, drilling the pass-through hole, and routing the line set. If you have done it before, it can take under an hour.

Just a drill. We include a hole saw, drill bits, screwdriver bit, level, gloves, and all mounting hardware. No vacuum pump, no gauges, no torque wrench, and no wire strippers. Just your drill and a free afternoon.

Yes. The MS12 comes with a 10-foot pre-charged copper line set, but we can customize it up to 49 feet. Tell us what you need when you order and we will build it at our US headquarters.

Yes. The Quick ’n’ Easy^TM self-sealing valves unscrew and reconnect without losing refrigerant. Disconnect takes about 5 minutes and reconnecting at a new location takes another 5 minutes. No vacuum pump and no re-charging.

The units are very similar with two main differences. First, the HS12 has EVI SuperHeat technology that heats down to -22°F, while the MS12 heats down to 5°F. Second, the HS12 requires a 20-amp outlet (NEMA 5-20R) instead of the MS12's standard 15-amp outlet. Everything else, including Quick ’n’ Easy^TM connection, solar capability, cooling performance, and the guarantee, is effectively the same. If your winters regularly drop below 5°F, go with the HS12.

If the sun is shining, yes. Solar panels will power the unit even when the grid is down. At night during an outage, you would need a battery backup or generator.

Very little. Clean the indoor air filter quarterly by sliding it out, rinsing it, and replacing it. Vacuum the indoor coil and spray the outdoor coil annually. That is it.

Indoor and outdoor units, pre-charged 10-ft twist-to-connect line set, 120V power cord, communication wire, wall bracket, remote control, condensate hose, and our free Quick ’n’ Easy^TM Bonus Kit with solar whips, DC isolator, solar wire, hole saw, drill bits, level, gloves, and more. Everything except a drill and solar panels.

Shipping is highly discounted worldwide and shown at checkout before you purchase. You will receive 3 boxes: outdoor unit (around 95 lbs), indoor unit (around 27 lbs), and solar isolator (around 2 lbs).