Review
The Goodman 4-ton combination furnace and air conditioning system represents solid middle-market positioning in today's HVAC landscape. This upflow unit bundles a 120,000 BTU gas furnace with a 48,000 BTU cooling condenser, designed for homes roughly 1,800 to 2,400 square feet. It carries Energy Star certification and arrives as a complete packaged system, reducing complexity for contractors and homeowners alike. Online Supply offers this unit with potential rebates, offsetting initial cost concerns.
Performance specs tell a practical story here. The furnace delivers 92% AFUE efficiency, meaningfully better than 80% baseline units and translating to real heating cost savings. Cooling efficiency hits 16 SEER, which Energy Star validates as solid for the price point. The scroll compressor operates single-stage, meaning it runs at full or minimum capacity without intermediate modulation. Maximum airflow reaches 2,000 CFM via the multi-speed blower, enabling better temperature distribution. At 74 dBA, noise levels run slightly higher than premium variable-speed competitors, noticeable but acceptable for most installations.
Pros & Cons
Pros
- 92% AFUE furnace efficiency rated, exceeding baseline federal standards by 7 percentage points
- 16 SEER cooling rating with Energy Star certification for year-round efficiency gains
- Multi-speed blower motor delivers up to 2,000 CFM, improving comfort and air distribution
- Scroll compressor is proven reliable workhorse with solid track record in residential applications
- 10-year warranty with online registration provides meaningful coverage for peace of mind
Cons
- Single-stage compressor means less modulation on partial-load cooling days, wasting some efficiency potential
- 74 dBA noise level is higher than premium variable-speed models, noticeable during operation
- Spec sheet shows conflicting tonnage data (listed as both 4-ton and 5-ton), raising quality control concerns
- R410A refrigerant compatibility only, not backward compatible with R22 systems despite spec notation
Who Should Buy
Best For
Budget-conscious homeowners and landlords replacing 15+ year old equipment who want solid mid-range performance without premium pricing. Contractors doing volume replacements in moderate climates will appreciate the straightforward single-stage design and proven reliability.
Consider Alternatives If
Anyone in extreme hot climates needing maximum cooling efficiency or seeking variable-speed compressors should explore Goodman's premium GSZC or look at competing brands.
Installation
This upflow configuration fits standard attic or basement placement in most homes. The unit requires 115V single-phase 60 Hz power with breaker sizing between 26.4 and 45 amps, accommodating most residential electrical panels. Plastic or PVC exhaust flue is required with right-side location. Suction line needs 1,128-inch piping with 1/2-inch insulation rated to 50 feet. Installation demands standard HVAC tools and CAPF manual reference.
Warranty & Reliability
Goodman backs this system with 10-year parts coverage when registered online, a meaningful commitment for sealed component failures. Labor warranty typically runs one year through installation contractors. This protects against compressor failure, coil defects, and heat exchanger issues without surprising gaps. Registration is straightforward online.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 48,000 |
| Heating BTU | 120,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 74 |
| Weight (in lbs) | 48.000000 |
| Feature | Spec |
| Product Features | Rebate Available |
| Energy Star | Yes |
| SEER1 (Efficiency) | 16 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 7/8" |
| Max Breaker Size | 45 amps |
| Min. Breaker Size | 26.4 amps |
| Tonnage | 5 Ton |
| Valve Type | Sweat |
| Height | 30" |
| Width | 24.5" |
| Depth | 21" |
| Resources | CAPF Installation Manual CAPF Specifications Sheet Goodman Evaporator Coil Warranty You will need Adobe® Acrobat® Reader to view PDF documents. |
| Safety Information | PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here. |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 92% |
| Blower Motor | Multi Speed |
| Maximum CFM | 2000 |
| Configuration | Upflow / Downflow |
| Flue Location | Right |
| Burner Stages | Single |
| Fuel Type | Gas |
| Liquid Line | 3/8" |
| Suction Line | 1 1/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 1/2" |
| Length | 50 feet |
Frequently Asked Questions
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