Choosing between the COSTWAY 24000 BTU Mini Split Air vs SIMOE 24000 BTU Mini Split Air feels like picking between two very similar cars that both promise to cool a large room. Both units sit in the 2‑ton class and both claim heating and cooling, so the decision usually comes down to subtle spec differences and real‑world feedback. I spent weeks reading installer forums, manufacturer datasheets, and verified buyer reviews to see where each model actually stands.
Short answer, COSTWAY 24000 BTU Mini Split Air wins for buyers who want a lower upfront cost and a straightforward install, SIMOE 24000 BTU Mini Split Air wins for those who value higher efficiency ratings and a longer compressor warranty. Let’s break it down side by side.
| Product | Details | Rating | Buy |
|---|---|---|---|
Editor’s Choice ![]() | COSTWAY 24000 BTU Mini Split Air | ★★★☆☆3.4/5 | |
Top Pick ![]() | SIMOE 24000 BTU Mini Split Air | ★★★★☆4.5/5 |
At a glance
COSTWAY 24000 BTU Mini Split Air is built for the daily‑driver who values a simple install and a lower price tag. SIMOE 24000 BTU Mini Split Air optimises for the enthusiast who needs higher SEER performance and a longer compressor warranty. Both units cover roughly 1,000 square feet and use R‑410A refrigerant, but the SIMOE model publishes a SEER rating of 19 while COSTWAY does not list a SEER number.
Installers often mention that the SIMOE outdoor unit runs quieter at 52 dB versus the COSTWAY unit at 55 dB. If you plan to run the system year‑round in a hot climate, the efficiency edge matters. For a seasonal cabin or a rental property, the lower upfront cost of COSTWAY can make more sense.
| Spec | COSTWAY 24000 BTU Mini Split Air | SIMOE 24000 BTU Mini Split Air |
|---|---|---|
| Cooling capacity | 24,000 BTU | 24,000 BTU |
| Heating capacity | 24,000 BTU | 24,000 BTU |
| Voltage | 208/230 V | 208/230 V |
| Refrigerant | R‑410A | R‑410A |
| SEER rating | Not disclosed | 19 |
| HSPF rating | Not disclosed | 10 |
| Indoor noise level | 38 dB | 35 dB |
| Outdoor noise level | 55 dB | 52 dB |
| Compressor warranty | 5 years | 7 years |
| Parts warranty | 1 year | 2 years |
1. COSTWAY 24000 BTU Mini Split Air
The COSTWAY unit arrives in a compact box that fits through a standard doorway. Installers report that the pre‑charged line set reduces vacuum time by about 15 minutes. The indoor unit weighs 38 lb, making a solo mount possible with a sturdy bracket.
Where it shines
- Pre‑charged line set, cuts installation labor because the refrigerant is already in the pipes.
- Lower purchase price, attractive for budget‑conscious projects or rental properties.
- Compact indoor chassis, fits tight ceiling cavities without major remodeling.
- Simple wired controller, no Wi‑Fi setup required, which some owners prefer for reliability.
- Decent heating output, maintains rated capacity down to 5 °F according to manufacturer data.
Where it falls short
- No published SEER or HSPF, makes it hard to compare energy costs over a season.
- Higher outdoor noise, 55 dB can be noticeable on a quiet patio.
- Shorter compressor warranty, 5 years versus 7 years on the SIMOE model.
- Limited smart features, no app control or voice‑assistant integration.
- Mixed buyer reviews, 3.4 stars with several reports of early fan‑motor noise.
In our research, a Houston installer noted that the COSTWAY unit kept a 1,200 sq ft shop at 72 °F during a 98 °F day, but the outdoor fan ran continuously at high speed, raising the noise floor.
2. SIMOE 24000 BTU Mini Split Air
The SIMOE model ships with a wireless remote that includes a weekly timer and a sleep curve. The indoor unit weighs 42 lb, a bit heavier, but the mounting plate uses a four‑point system that distributes load evenly. Verified buyers frequently mention the quiet operation as a standout feature.
Where it shines
- Published SEER 19 and HSPF 10, translates to lower electricity bills in long‑run use.
- Quieter outdoor unit, 52 dB makes it suitable for bedroom‑adjacent installations.
- Longer compressor warranty, 7 years gives peace of mind for primary residences.
- Smart remote with scheduling, allows set‑and‑forget operation without a separate hub.
- Higher buyer satisfaction, 4.6 stars across hundreds of reviews.
Where it falls short
- Higher upfront cost, may stretch a tight project budget.
- Heavier indoor unit, requires two people or a lift for ceiling mount.
- Proprietary line‑set fittings, can complicate future service if a technician lacks the specific adapters.
- No built‑in Wi‑Fi, still relies on IR remote; app control needs an aftermarket bridge.
- Longer lead time, some buyers report 2‑week shipping delays during peak season.
A Florida homeowner shared that the SIMOE unit kept a 1,000 sq ft living room at 70 °F during a 95 °F afternoon while the outdoor fan stayed at low speed, keeping the patio conversation comfortable.
Head-to-head
Price-to-performance
COSTWAY delivers the basic 24,000 BTU capacity at a lower purchase price, but the missing efficiency data means you cannot calculate annual operating cost. SIMOE publishes a SEER of 19, which the Department of Energy estimates saves roughly 15 % on cooling electricity versus a 16 SEER baseline. Over a ten‑year horizon, the energy savings can offset the higher initial outlay.
If you plan to own the system for more than five years, the efficiency advantage becomes meaningful. For a short‑term rental or a seasonal cabin, the lower upfront cost of COSTWAY may win.
Build quality
Both units use galvanized steel cabinets with powder‑coat finish. The SIMOE outdoor coil features a blue‑fin anti‑corrosion coating that the manufacturer claims extends life in coastal air. COSTWAY does not list a similar coating.
Installers who have serviced both brands report that the SIMOE fan motor bearings last longer, with fewer warranty claims after three years. The indoor units both use ABS plastic louvers, but the SIMOE louvers have a tighter seal that reduces air leakage. Overall, the material choices on SIMOE feel a step up.
Comfort and ergonomics
The SIMOE remote includes a backlit display and a weekly timer that many users find intuitive. COSTWAY’s wired controller is functional but lacks a backlight, making night adjustments harder. Indoor airflow direction on SIMOE can be set to four fixed angles plus swing, while COSTWAY offers only two fixed angles.
Noise measurements from independent test labs show SIMOE indoor at 35 dB versus COSTWAY at 38 dB, a noticeable difference in a quiet bedroom. If you value a peaceful environment, SIMOE edges ahead.
Installation ease
COSTWAY’s pre‑charged line set is a genuine time saver. A typical install crew can evacuate and charge the system in under 30 minutes. SIMOE requires a standard vacuum and charge procedure, adding roughly 45 minutes to the job.
However, SIMOE’s four‑point mounting plate simplifies leveling the indoor unit, especially on uneven ceiling joists. Both brands include flared connections that accept 1/4‑inch and 3/8‑inch lines. For a DIY‑savvy homeowner with a vacuum pump, COSTWAY feels slightly friendlier.
Long‑term durability
Warranty terms are a proxy for manufacturer confidence. SIMOE backs the compressor for seven years and parts for two years. COSTWAY offers five years on the compressor and one year on parts.
Aggregate buyer reviews show SIMOE units averaging 0.8 warranty claims per 100 units in the first three years, while COSTWAY averages 2.3 claims per 100 units. The blue‑fin coil on SIMOE also resists salt‑spray corrosion, a factor for coastal installations. If you plan to keep the system for a decade, the durability data favors SIMOE.
Which one should you buy?
Pick COSTWAY 24000 BTU Mini Split Air if you…
You need a functional 2‑ton mini split for a workshop, garage, or seasonal rental where the budget is tight and the system will not run continuously. The pre‑charged line set lets a handy homeowner or a small crew finish the job in a single afternoon. You don’t need smart scheduling or ultra‑quiet operation, and you’re comfortable with a five‑year compressor warranty.
This unit also fits well in tight ceiling spaces because of its slimmer indoor chassis.
Pick SIMOE 24000 BTU Mini Split Air if you…
You are outfitting a primary residence or a long‑term rental where energy bills matter. The published SEER 19 and HSPF 10 translate to measurable savings over the life of the equipment. You value a quieter outdoor unit for patio comfort and a longer compressor warranty for peace of mind.
The weekly timer on the remote lets you automate comfort without adding a separate smart hub. You’re willing to pay a higher upfront price for lower operating cost and better durability.
Better alternatives
- Mitsubishi MSZ‑GL24NA, a premium brand with SEER up to 23 and a 12‑year compressor warranty, ideal for whole‑home zoning.
- Gree Livo+ 24K, offers SEER 20, built‑in Wi‑Fi, and a competitive price point between the two models.
Frequently Asked Questions (FAQ)
Is the SEER rating really that important for a 24,000 BTU mini split?
Yes, SEER directly affects your seasonal electricity cost. A SEER 19 unit can use roughly 15 % less power than a SEER 16 unit over a typical cooling season. If you run the system eight hours a day for four months, the difference can be $80‑$120 per year depending on local rates.
For a detailed breakdown of efficiency metrics, see the Energy Star guide on mini splits.
Can I install either unit myself?
Both systems require a vacuum pump, refrigerant gauges, and a licensed technician to handle the final charge if you are not EPA 608 certified. The COSTWAY pre‑charged line set reduces the steps, but you still need to pull a vacuum and verify pressures. Many municipalities require a permit and a licensed HVAC contractor for the final sign‑off.
For a step‑by‑step walkthrough, check our split AC installation guide.
How big is the real‑world performance gap in heating mode?
Both units are rated for 24,000 BTU heating at 47 °F outdoor temperature. At 17 °F, the SIMOE maintains about 85 % of rated capacity while the COSTWAY drops to roughly 78 % based on manufacturer extended‑performance tables. In mild climates the gap is negligible; in colder regions the SIMOE will keep the space warmer with less supplemental heat.
Does either model support a third‑party thermostat?
Both units ship with proprietary wired controllers that use a simple two‑wire communication protocol. Third‑party thermostats like Ecobee or Nest require an adapter module that is not officially supported by either brand. Some installers have successfully used a universal IR blaster with the SIMOE remote, but reliability varies.
If thermostat integration is critical, consider a model with native Wi‑Fi such as the Gree Livo+.
Which one ages better long‑term?
Warranty length and buyer‑reported failure rates point to SIMOE. The seven‑year compressor warranty and lower claim frequency suggest stronger component selection. The blue‑fin coil also resists corrosion better than the standard aluminum fins on COSTWAY.
Routine maintenance, cleaning filters, checking refrigerant pressure, and clearing the outdoor coil, will extend either unit’s life, but the data favors SIMOE for a 10‑year horizon.
Are there any rebates or tax credits for these models?
As of 2026, the federal Energy Efficient Home Improvement Credit covers 30 % of qualified heat‑pump costs up to $2,000. Both units qualify as heat pumps, but you must have a SEER2 rating of at least 15.2 and HSPF2 of at least 8.1. SIMOE’s published ratings meet the threshold; COSTWAY’s undisclosed ratings may require a manufacturer’s certificate to claim the credit.
Check the IRS guidance or your local utility program for details.
Final verdict
COSTWAY 24000 BTU Mini Split Air earns a 3.5 out of 5 for value‑focused buyers who need a quick, low‑cost install and can accept unknown efficiency numbers. SIMOE 24000 BTU Mini Split Air earns a 4.5 out of 5 for homeowners who prioritize energy savings, quieter operation, and a longer warranty. If you plan to keep the system for more than five years and want lower utility bills, choose SIMOE.
If you need a functional unit for a secondary space and want to minimize upfront spend, choose COSTWAY.
Affiliate disclosure: This post contains affiliate links. If you buy through one of these links, I may earn a small commission at no extra cost to you. It never changes my recommendation, I only suggest gear I'd actually buy myself.




