Goodman 2 Ton R32 Wall-Mount Air Handler With Built-in 5kW Heater (AWST24SU1305)
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Key features
- 2-ton (24,000 BTU nominal) wall-mount air handler for ductless split systems
- Built-in 5kW electric resistance heater for supplemental or standalone heating
- R-32 refrigerant compatible, with lower global warming potential than R-410A
- Wall-mount configuration suits rooms where ceiling or floor units are impractical
- Requires a compatible Goodman R-32 outdoor unit to form a complete system
- A2L refrigerant handling required; installer must be R-32 certified
About this system
The Goodman AWST24SU1305 is a 2-ton wall-mount air handler designed for ductless split systems using R-32 refrigerant. The wall-mount configuration makes it a practical choice for spaces where ceiling cassettes or floor-mount units are impractical, such as finished rooms, additions, server closets, or multi-use commercial spaces with limited overhead clearance. The built-in 5kW electric heater means this unit can deliver supplemental or primary heating without a separate heat pump outdoor unit, which simplifies wiring and reduces installation parts count in mild climates.
R-32 refrigerant is a step forward over older R-410A systems. It has a lower global warming potential (roughly one-third that of R-410A), requires a smaller refrigerant charge by weight to do the same cooling work, and has become the industry standard direction for new ductless equipment. Technicians familiar with R-32 handling procedures will find servicing straightforward, though it does require A2L-rated (mildly flammable) handling protocols, so confirming your installer is trained for R-32 work is worth doing before booking. No SEER2 rating is published for this air handler on its own, as efficiency figures depend on the matched outdoor unit selected.
The AWST24SU1305 is a competitively priced wall-mount air handler that suits budget-conscious buyers who want R-32 compatibility and built-in electric heat in a single wall unit. Goodman's value pricing comes with real trade-offs in long-term reliability compared to premium brands, and performance will depend heavily on the quality of installation and the matched outdoor unit. Buyers comfortable with a more hands-on ownership experience and willing to budget for potential mid-life repairs will get reasonable value here.
Overall score is the average of the five ratings above.
What we like
- Priced 15 to 25 percent below comparable Carrier, Trane, and Lennox equipment
- Built-in 5kW heater reduces need for a separate heating source in mild climates
- R-32 refrigerant is current-generation, future-friendlier than R-410A systems
- Wall-mount form factor fills a genuine installation gap where other configurations do not fit
- Goodman's wide dealer network means parts and service are generally accessible
Trade-offs
- No published SEER2 rating for this air handler alone; system efficiency depends entirely on the matched outdoor unit
- Goodman compressors average 10 to 14 years versus 15 to 20 years for premium brands, a real long-term cost consideration
- Evaporator coil leaks and dual-run capacitor failures are documented recurring issues across the Goodman lineup
- R-32 requires A2L-certified installers; not all HVAC technicians in every market are yet equipped for this refrigerant
What homeowners and pros say about Goodman
Among homeowners, Goodman’s reputation tends to split along price lines. On ConsumerAffairs, where the audience skews toward people with complaints, the brand sits around 2.5 out of 5, with the most repeated theme being repair costs that climb after roughly year seven of ownership. Across Google dealer reviews, where satisfied customers are more likely to weigh in, Goodman averages around 3.8 out of 5 across hundreds of reviews per location, with affordability consistently cited as the main reason buyers chose the brand. For a wall-mount air handler like the AWST24SU1305, the honest takeaway is that the lower purchase price is real, but it is not entirely free.
HVAC technicians who work on Goodman equipment regularly point to dual-run capacitor failures as the single most predictable service call across the brand’s lineup, typically an accessible repair in the 300 to 600 dollar range. More consequential are evaporator coil leaks, which show up in a meaningful share of owner feedback and represent a more involved repair. Compressor lifespan averaging 10 to 14 years versus 15 to 20 years for Trane, Lennox, or Carrier is the sharpest long-run cost difference. For an R-32 wall-mount unit specifically, pros also flag that install quality matters more than almost any other single factor with Goodman equipment, because a correctly matched, correctly charged, and correctly mounted system will outperform a sloppy install on a premium brand every time.
Sources: ConsumerAffairs Goodman owner reviews, AHRI Directory of Certified Product Performance, U.S. DOE appliance and equipment efficiency standards, Goodman product specification sheets.
How it compares
| Brand | Comparable model | SEER2 | Stage | Price position |
|---|---|---|---|---|
| Goodman | AWST24SU1305 | N/A (air handler only) | Single-stage | Value pick |
| Mitsubishi | MSZ-GL Series (wall-mount) | Up to 19+ SEER2 (system dependent) | Variable-speed | Significantly higher than Goodman |
| Daikin | Aurora Series wall-mount (FTXB) | Up to 17 SEER2 (system dependent) | Single-stage | Moderately higher than Goodman |
| Fujitsu | Halcyon ASHA Series wall-mount | Up to 20+ SEER2 (system dependent) | Variable-speed | Significantly higher than Goodman |
Competitor rows are comparable single-stage units at similar efficiency; price is relative position, not a quote.
Questions about this system
Do I need a specific Goodman outdoor unit to pair with this air handler?
Yes. This is an indoor air handler only and requires a compatible Goodman R-32 outdoor condensing unit to operate as a cooling or heat pump system. Confirm model compatibility with your dealer before purchasing, as not all Goodman outdoor units are R-32 rated.
Can the built-in 5kW heater serve as the primary heat source, or is it just backup?
The 5kW electric resistance heater can function as a primary heat source in mild climates where heating loads are modest, but it is relatively expensive to operate compared to a heat pump. In colder regions it is better treated as supplemental heat when the outdoor unit cannot keep up.
Is R-32 refrigerant safe, and will any HVAC technician be able to service this unit?
R-32 is classified A2L, meaning mildly flammable, and requires technicians trained in A2L handling procedures. It is increasingly common, but you should confirm your service technician is R-32 certified before scheduling work, particularly in markets where R-32 adoption is still catching up.
What does Goodman's warranty cover on this unit, and are there registration requirements?
Goodman typically offers a 10-year parts limited warranty on registered units, with a shorter coverage period for unregistered equipment. Registration must generally be completed within a set window after installation, so confirm the specific terms for this model at time of purchase and register promptly.
What repairs should I budget for over the life of this unit?
Based on Goodman's documented failure patterns, dual-run capacitor replacement is the most common service call and typically runs 300 to 600 dollars. Evaporator coil leaks are also reported with some frequency and cost more to address. Setting aside a modest annual service fund after year five is a practical approach with any Goodman equipment.
Specifications
| Cooling capacity | 2 Ton |
| Refrigerant | R-32 |
| Model | AWST24SU1305 |