Bottom Line Up Front
The Goodman GSXH503610 is a 3-ton 16 SEER2 air conditioner condenser using R-454B refrigerant — Goodman's transition to the new lower-GWP refrigerant standard effective 2025. The Copeland scroll compressor, 10-year parts warranty, and lifetime compressor warranty combine to offer the lowest total cost of ownership in the 3-ton residential and light commercial AC market. For cooling-only applications paired with a gas furnace in the Sun Belt, this is the default value specification.
Spec Sheet
| Model | GSXH503610 |
| Cooling | 16 SEER2 |
| Compressor | Single-stage Copeland scroll |
| Tonnage | 3 ton (36,000 BTU) |
| Refrigerant | R-454B |
| Voltage | 208-230V / 60Hz |
| Sound Level | 72 dB |
| Warranty | 10-year parts + lifetime compressor (registered) |
| Price | $2,600–$5,800 installed |
Extended Analysis
The GSXH5 series represents Goodman's R-454B transition lineup — functionally equivalent to the previous GSX16 R-410A platform with the refrigerant change mandated by EPA Section 608. The Copeland scroll compressor is unchanged and carries the same well-documented reliability record.
At 16 SEER2, this unit delivers efficiency above the federal minimum (13.4-15.2 SEER2 depending on region) but below the 18-21 SEER2 of variable-speed alternatives. For cooling-only applications in climate zones 2-3 running 1,200-1,800 annual cooling hours, the efficiency gap versus an 18 SEER2 unit costs approximately $100-$180/year — payback on the higher-efficiency unit is 8-14 years.
The lifetime compressor warranty is Goodman's most compelling specification point. Compressor replacement is typically the largest single repair cost on a central AC system ($900-$2,200 in parts alone). Goodman's warranty effectively eliminates this failure cost for the life of the original owner's property ownership. For landlords and property managers with long holding periods, this warranty has genuine financial value that is often underappreciated in initial cost comparisons.
How It Compares
| Model | Efficiency | Price | Key Spec | Score | Type |
|---|---|---|---|---|---|
| Goodman GSXH503610 | 16 SEER2 | $2,600–$5,800 | R-454B, single-stage | 10yr+lifetime | ★★★★☆ 4.3 |
| ACiQ 3T 18 SEER2 | 18 SEER2 | $2,800–$6,200 | R-454B, variable | 10 years | ★★★★☆ 4.4 |
| Carrier Performance 14 | 15 SEER2 | $3,200–$7,000 | R-454B, single-stage | 10 years | ★★★★☆ 4.2 |
Customer Reviews
Goodman is my standard spec for rental replacements. The R-454B units are the same quality as the R-410A units they replaced. Lifetime compressor warranty is what keeps me coming back — I have not paid for a compressor replacement in 8 years of using Goodman. Parts availability through local suppliers in Phoenix is excellent.
Goodman GSXH5 installs cleanly, techs are familiar with the platform. The R-454B transition was smooth — our team got A2L certified over one weekend and we have been installing R-454B equipment ever since. The efficiency is as labeled. My clients who need value and reliability get Goodman; clients who want top efficiency get Carrier or Lennox.
Had this installed after my old unit died in August. Installation was same-day. The AC cools our 1,800 sq ft house to 72°F without running continuously even on 100°F days. Energy bills are lower than with the 13-year-old unit it replaced. The lifetime compressor warranty gives peace of mind. Would give 5 stars but the 72 dB outdoor unit is noticeably louder than I expected.
Frequently Asked Questions
What is the difference between Goodman GSXH5 and GSX16?
The GSXH5 uses R-454B refrigerant; the GSX16 used R-410A. Both use the same Copeland scroll compressor and carry the same warranty. The R-454B units are required by EPA regulations for new equipment manufactured after January 2025. Performance, efficiency, and installation are essentially identical.
Does the Goodman GSXH503610 require a new air handler?
No. The GSXH503610 condenser can be matched with existing R-410A compatible air handlers or evaporator coils in many retrofit applications. However, the refrigerant lines must be flushed when switching refrigerants. Consult the AHRI matchup database for verified efficiency ratings with your specific air handler.
What is the sound level of the Goodman GSXH503610?
72 dB at full load — typical for single-stage residential condensers. This is louder than two-stage (67 dB) and variable-speed (52-58 dB) alternatives. For noise-sensitive locations, consider variable-speed equipment.
Is Goodman owned by a major HVAC manufacturer?
Yes. Goodman is owned by Daikin, the world's largest HVAC manufacturer. Daikin acquired Goodman in 2012. The Goodman brand continues to operate independently with its own distribution network and product line, but benefits from Daikin's global manufacturing scale and R&D investment.
Does Goodman GSXH5 qualify for utility rebates?
16 SEER2 may qualify for some utility rebates depending on your utility's threshold. Many programs require 15+ SEER2 or Energy Star certification. Check your local utility's rebate portal for current requirements. The Energy Star minimum for central AC is 15 SEER2, which the GSXH5 exceeds.