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Airspool MS24 Solar/Hybrid Air Conditioner and Heater (24,000 BTU)

When 12,000 BTU just isn't enough. The Airspool MS24 brings all the Quick ’n’ EasyTM simplicity you love — doubled. At 24,000 BTU, it's built for larger spaces like open living areas, workshops, garages, or guest houses. Same patent-pending 5-minute connection system, same solar/hybrid flexibility, same unbeatable guarantee — just twice the comfort.

  • True DIY install — no HVAC tech needed
  • Runs on solar, grid, or both (solar always prioritized)
  • 365 Day "Buy and Try" Guarantee + 5-Year Full Guarantee
  • Fast, highly-discounted shipping
  • Flexible kink-proof line set included (no bent copper headaches)
$2,930$2,795 Add MS24 To Cart
“I am shocked the this unit can product heat at 8 degrees outdoor temp. We will see as time passes how the unit continues to perform I have zero complaints as of now
and only have great things to say about it!”
Laura B Verified Buyer

via email

“It hit -12F last week. The unit seems to work well.”
Richard H Verified Buyer

via email

Meet the Airspool MS24

The MS24 is 24,000 BTU of Quick ’n’ EasyTM power — built for spaces that need real climate control, not a compromise.

Whether it's an open-concept living area, a large workshop, a garage you actually spend time in, or a guest house that deserves real comfort — the MS24 handles it. Same solar-first hybrid design as the MS12, same 5-minute connection, same industry-best guarantee. Just double the capacity.

The MS24 is a true hybrid for "always on" comfort. It runs on solar when the sun's up and automatically uses grid power when it's dark or cloudy. No switches, no downtime, and no batteries required.

Configuration 1 Zone
Heats and cools around 1,000 Sq Ft 24,000 BTU
Cooling up to 131°F Outdoor temperature
Heating down to 5°F Outdoor temperature
MS24 installed on interior wall in a spacious room

Operating Modes

Grid Power Only

Connect your unit to a 220/240V outlet and enjoy high-efficiency heating and cooling for larger spaces.

Solar Power Only mode

Solar Power Only

Going off grid? We recommend around 3,000 watts of solar panels to enjoy year-round comfort in larger spaces.

Hybrid Grid/Solar

Your MS24 seamlessly blends grid and solar power so you never lose comfort. Solar is prioritized, and grid power automatically fills in as needed.

The Kink-Proof Advantage

If you’ve ever worked with 1/2" copper line sets, you know the frustration: one wrong bend and it kinks. A kinked line set means restricted refrigerant flow, reduced efficiency, and potentially a trip to the hardware store.

The MS24 eliminates that headache entirely.

Instead of rigid copper, your MS24 comes with a flexible, kink-proof line set. Bend it, route it around corners, thread it through tight spaces — it won't kink. Period.

It's one of those upgrades that seems small until you're in the middle of an install and realize how much easier everything just became.

16 feet of flexible, kink-proof line set included. Need more? We can customize your line set length up to 49 ft.
Flexible kink-proof line set close-up
Hands twisting together Airspool Quick 'n' Easy refrigerant line valves

The Quick ’n’ EasyTM System

The Secret That Will Save You Hours and $$$

Installing a mini-split system typically requires a vacuum pump, gauge set, specialized wrenches, adapters, correct-sized screwdrivers, wire cutters/strippers, and potentially extra refrigerant. Plus, know-how, patience and time.

But not with Airspool.

We do all of that work and pre-install our patent-pending Quick ’n’ EasyTM valves at our US headquarters. So when your unit shows up at your doorstep, you just twist the connections!

We'll Customize Your Line Set Length!

With most mini-splits, you get what you get as far as line set length.

But not with Airspool.

Because we customize everything in-house, you have the option to customize the length of your lineset. All the way to 49 ft!

And, since we test all aspects (e.g. solar, grid, and a combination of both) before shipping, we know it's going to work for you. Because of this, you get an unprecedented 5-year functionality guarantee.

2 Ways to Control Your Airspool

Imagine coming home to the perfect temperature in your room, no matter what season. With our Apple/Android app, you can control your air conditioning and heat directly from your phone from anywhere in the world. Or program the times you want and forget about it.

But if you're like us and like to have some physical buttons to press, you'll appreciate the remote included with your unit.

Download the Airspool App

Airspool remote and smartphone app

Do It Yourself (Really!)

The Airspool Quick ’n’ EasyTM system is about to make your life much easier.

Imagine installing a full HVAC system by yourself, with no previous experience, and doing it in a few hours!

This is your reality with Airspool.

Step 1. Place the outdoor unit

Set the outdoor unit on a stable surface with room for airflow. Double-check the final location before moving forward.

Step 2. Drill hole

Mark your wall path and drill the pass-through opening for the line set. Keep the angle slightly downward to support drainage.

Step 3. Mount your indoor unit

Secure the wall bracket and hang the indoor unit in place. Make sure it is level and fully seated on the bracket.

Step 4. Twist to connect your line set

Route the flexible, kink-proof lines and connect them by hand as instructed. Tighten to spec and confirm each connection is fully seated.

Step 5. Mount your isolator and plug in your solar (optional)

Install the isolator in an accessible location near your outdoor setup. Connect solar input if desired, or continue with grid power only.

Step 6. Turn it on and enjoy!

Power the system, run startup checks, and set your comfort mode. You are now ready for efficient heating and cooling.

For MS24 installations, use the MS12 installation manual below, then review the MS24 insert for the model-specific changes.

How can we be so confident you can install this yourself, even with zero experience?

Because we give you:

  • an industry-best installation manual full of full color photos and written in native English!
  • dozens of installation videos which make it even easier
  • and unlimited phone support if you get stuck!

Customers often ask...

How long will it take to install my MS24?
Most first-time installers complete the full job in 2-4 hours. The Quick ’n’ EasyTM connections themselves take about 5 minutes. The rest of the time is spent mounting the wall bracket, drilling a pass-through hole, and routing the line set. The flexible kink-proof line set on the MS24 actually makes routing easier than rigid copper. If you've done it before, you can have a unit up and running in under an hour.
What tools do I need at home to install an MS24?
Just a drill — that's it. We include the hole saw, drill bits, screwdriver bit, level, and all the hardware you need. No vacuum pump, no gauges, no torque wrench. Just your drill and about 2-4 hours.
Colorado Airspool installation Colorado customers completing an install

Airspool MS24 Specs at a Glance

Feature Details
Capacity 24,000 BTU (heating & cooling) — ideal for ~1,000 sq ft
Efficiency 21 SEER2 (cooling) · 9.6 HSPF2 (heating)
Power 220/240V, 20-amp (plug or whip and disconnect — specify at order)
The MS24 requires a 220/240V connection — the same type used for most clothes dryers and large appliances. You can specify whether you want a plug or whip and disconnect at the time of order.
Operating Range Heats down to 5°F · Cools up to 131°F
Modes Solar-only · Grid-only · Hybrid (auto-switch)
Recommended Solar Power around 3,000 watts
Line Set Flexible kink-proof, 5 meters (16 ft), pre-charged, twist-to-connect
Communication Wire 7 meters (23 ft), 4-lead
Dimensions (Approx.) Indoor unit: 42in × 13in × 8in
Outdoor unit: 33in × 26in × 13in
Weight (Approx.) Indoor unit: ~35 lbs
Outdoor unit: ~130 lbs
Certifications ENERGY STAR Most Efficient 2026, ETL, AHRI, UL

What’s Included with Your MS24

Everything you need (except a drill and solar panels):

  • Indoor & outdoor units (24,000 BTU each)
  • Pre-charged, flexible kink-proof twist-to-connect refrigerant line set (16 ft)
  • 220/240V 20-amp power cord (12 AWG) — with plug or whip and disconnect, your choice
  • 23 ft (7-meter) 4-lead communication control wire
  • Wall bracket, putty, and mounting hardware
  • Remote control (with batteries)
  • 10 ft condensate hose + wrap tape + valve dust caps
  • MC4 disconnect tools & extra connectors
  • Clear English installation manual with tons of pictures

Free Quick ’n’ EasyTM Bonus Kit (included free)

Solar whips, DC isolator box, 10m solar wire, gloves, zip ties, tape, hole saw & bits, screwdriver bit, and level.

MS12 indoor unit

Indoor Unit

Backed by Dave’s Double Guarantee

Like every purchase you make with Airspool, your MS24 is backed by two industry-leading guarantees.

365 Day "Buy and Try" Guarantee

Take a full year to make sure your Airspool system is right for you. For any reason — or no reason at all — you can return it within 365 days for a full refund, and we’ll even cover the shipping back to us.

We want to take all the risk off your shoulders so you know you're making a good decision with Airspool.

5 Year Guarantee

Your comfort shouldn’t come with fine print. For five full years after purchase, we’ll make sure your unit keeps running like new. That means we cover all parts and labor.

David VanZanten

David VanZanten Founder and President of Airspool

Your New MS24 Shipped

Here's what to expect when we ship your MS24.

The packages you'll receive

Your new MS24 ships palletized via a freight carrier. It will arrive on a truck with a lift gate to your residence or business.

Pallet: Freight shipment

Delivered palletized via freight carrier with lift-gate service

MS24 palletized freight shipment MS24 palletized shipment detail

How much does shipping cost?

Worldwide: Highly discounted shipping (when you enter your address at checkout, your shipping total will be displayed before you purchase).

Which package provider will ship my unit?

These larger systems ship via freight carrier on a pallet. Delivery arrives on a truck with a lift gate to your residence or business. For international shipments, DHL, FedEx, UPS, or other carriers may handle final delivery logistics.

What if my package gets damaged?

That's not your problem! Remember you have a 365-day Buy and Try Guarantee so you can return your unit for any reason or no reason. We'll even cover the shipping costs back to us.

Frequently Asked Questions about MS24

How loud is the MS24?

The indoor unit operates at a whisper-quiet level, comparable to a library. The outdoor unit is slightly louder than the MS12 due to the larger compressor, but still comparable to a normal conversation — you'll barely notice it.

How much space does the MS24 cover?

About 1,000 sq ft — an open-concept living room, large workshop, garage, guest house, or ADU. If you only need ~500 sq ft, the MS12 is a better value.

Do I need solar panels right now or can I get them later?

Nope! The MS24 works perfectly on 220/240V grid power alone. Add solar panels whenever you're ready. Many customers start on grid and add solar later.

How many solar panels do I need for the MS24?

About 3,300 watts (6-8 standard panels). Budget around $1,300 for panels plus mounting hardware. The solar input range is 90-380V. A little under or over is fine — grid power fills in any gaps.

What kind of electrical outlet does the MS24 need?

220/240V, 20-amp — the same type of power used for your clothes dryer or oven. Most homes already have this available in the laundry room, garage, or at the electrical panel. You can specify whether you want a plug or direct wire at the time of order. If you need a new circuit, an electrician can typically run one in a couple of hours.

What kind of line set does the MS24 use?

Unlike the MS12's copper line set, the MS24 uses a flexible, kink-proof line set. If you've ever worked with 1/2" copper refrigerant lines, you know they kink easily. Our flexible line set bends, routes, and flexes without kinking. It's 16 ft (5 meters), pre-charged, and twist-to-connect. Need more? We can customize up to 49 ft.

How long does the MS24 take to install?

Most first-timers finish in 2-4 hours. The Quick ’n’ EasyTM connections take about 5 minutes — the rest is mounting, drilling, and routing. The flexible kink-proof line set actually makes routing easier than rigid copper. Done it before? Under an hour.

What tools do I need?

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.

What happens if I have too much or too little solar power?

No problem either way. Too little solar? Grid power fills in automatically. Too much? The excess voltage goes unused — no damage, no issues. The system adjusts seamlessly.

What's the difference between the MS24 and the MS12?

The MS24 doubles the power: 24,000 BTU (vs 12,000), covers ~1,000 sq ft (vs ~500), requires 220/240V (vs 120V), and comes with a flexible kink-proof line set (vs copper). It needs more solar — around 3,000 watts vs 1,500 watts. Same Quick ’n’ EasyTM connection, same guarantee, same DIY install.

Should I get the MS24 or the HS24?

If your winters regularly drop below 5°F, go with the HS24 SuperHeat. It has EVI technology that enables heating down to -22°F — plus 17% better heating efficiency. If your winters are milder (above 5°F), the MS24 handles heating just fine and is a great value. Both are 24,000 BTU with kink-proof line sets and identical cooling performance.

Can I move the MS24 after installation?

Yes. The Quick ’n’ EasyTM self-sealing valves unscrew and reconnect without losing refrigerant. Disconnect in ~5 minutes, reconnect in ~5 minutes. No HVAC tech needed.

Will the MS24 work during a power outage?

If the sun is shining — yes. Solar panels continue powering the unit even when the grid is down. At night during an outage, you'd need a battery backup or generator.

What maintenance does the MS24 need?

Clean the indoor air filter quarterly (slide out, rinse, replace — 2 minutes). Vacuum the indoor coil and spray down the outdoor coil annually. That's it.

What's included with my MS24?

Indoor and outdoor units (24K BTU), pre-charged 16-ft kink-proof twist-to-connect line set, 220/240V power cord, 23-ft communication wire, wall bracket, remote control, condensate hose, and our free Quick ’n’ EasyTM Bonus Kit (solar whips, DC isolator, solar wire, hole saw, drill bits, level, gloves, and more). Everything except a drill and solar panels.

How much does shipping cost for the MS24?

Shipping is highly discounted worldwide and shown at checkout before you purchase. The MS24 ships on a pallet via a freight carrier and arrives on a truck with a lift gate to your residence or business.

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