3.5 Ton 13 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This Goodman system excels for homeowners replacing older equipment who prioritize heating efficiency and upfront savings. The 96% AFUE furnace and single-stage AC offer reliable performance in moderate climates where variable-speed cooling isn't essential.

Review

The Goodman 3.5-ton combo system occupies the sweet spot for contractors and homeowners seeking straightforward equipment replacement without premium features. Sized at 26 inches tall and 30 pounds, this upflow A-coil condenser pairs with an 80,000 BTU furnace for complete climate control. Goodman has built its reputation on reliable, no-frills equipment, and this configuration delivers that promise at accessible pricing for single-stage applications.

Performance metrics show genuine strengths in heating efficiency. The 96% AFUE furnace converts nearly all fuel to usable heat, translating to measurable savings on winter bills. The AC side rates 13 SEER with single-stage compressor operation and R410A refrigerant compatibility. However, the actual cooling capacity measures 42,000 BTU, slightly below true 3.5-ton specifications. Multi-speed blower motor technology helps optimize comfort at 2000 CFM maximum airflow.

Pros & Cons

Pros

96% AFUE furnace efficiency reduces heating costs significantly compared to 80s-era units
13 SEER cooling efficiency meets federal minimums without premium pricing
Multi-speed blower motor optimizes comfort and reduces short-cycling
PVC-compatible exhaust allows flexible installation in modern homes
10-year parts warranty with online registration provides reasonable protection

Cons

Single-stage compressor lacks modulation, cycling on-off rather than running efficiently at partial load
75 dBA noise level runs louder than variable-capacity units during operation
42,000 cooling BTU lags the stated 3.5-ton nameplate, suggesting it performs closer to 3.25 tons

Who Should Buy

Best For

Budget-conscious homeowners in moderate climates upgrading from 15+ year old systems will appreciate the heating efficiency and entry-level pricing. This works well for homes where the AC doesn't run year-round and heating dominates seasonal costs.

Consider Alternatives If

Skip this if you live in hot climates requiring heavy AC use, value whisper-quiet operation, or need variable-capacity cooling to handle extreme load swings efficiently.

3.5 Ton 13 SEER 96% AFUE 80,000 BTU Goodman Gas Fu

Buy at HVACDirect →

Installation

Installation requires standard 115V single-phase power with 23.9 to 40-amp breaker capacity, typical for most residential panels. The unit accepts 3/8-inch liquid lines and 7/8-inch suction lines with sweat valve connections. PVC exhaust compatibility simplifies flue routing in newer construction. Upflow configuration and compact dimensions make it straightforward for experienced technicians to fit existing closets.

Warranty & Reliability

Goodman provides 10 years of parts coverage upon online registration, standard for mid-tier residential equipment. This protects against compressor failure and major component defects but excludes labor costs. Registration is essential, so budget time for that step during installation to activate full coverage.

Specifications

SKU	LS38783830
Brand/Manufacturer	Online Supply
Cooling BTU	42,000
Heating BTU	80,000
Refrigerant	R410A or R22
Electrical	115 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	75
Weight (in lbs)	30.000000
Feature	Spec
Energy Star	No
SEER1 (Efficiency)	13
Condenser Stages	Single Stage
Compressor Type	Reciprocating
Liquid Line	3/8"
Suction Line	7/8"
Liquid Valve Size	3/8"
Max Breaker Size	40 amps
Min. Breaker Size	23.9 amps
Tonnage	3.5 Ton
Valve Type	Sweat
Height	26"
Width	21"
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	96%
Blower Motor	Multi Speed
Maximum CFM	2000
Configuration	Upflow / Downflow
Flue Location	Right
Burner Stages	Single
Fuel Type	Gas
Style	A-Coil
Suction Line Insulation Thickness	3/8"
Length	30 feet

Frequently Asked Questions

How does 42,000 cooling BTU compare to the 3.5-ton rating? +

The discrepancy suggests this unit performs nearer 3.25 tons in real-world conditions. One ton equals 12,000 BTU, so true 3.5-ton capacity would deliver 42,000 BTU. While technically matching the nameplate, efficiency ratings indicate conservative output. Verify cooling load calculations before ordering.

What electrical work is required for installation? +

The system requires 115V single-phase 60 Hz power with breaker sizing between 23.9 and 40 amps. Most existing residential circuits handle this, but verify your panel capacity and wire gauge before installation. Hire a licensed electrician if upgrades are needed.

Is 13 SEER adequate for my climate? +

13 SEER meets federal minimums for most regions and suits moderate climates where cooling isn't extreme. However, hot climates like Arizona or Florida benefit from 14+ SEER units. Run your cooling load analysis to confirm this system handles summer peaks without excessive cycling.

How does single-stage cooling compare to variable-capacity models? +

Single-stage compressors run full power or off, cycling frequently at partial loads. Variable-capacity units modulate output smoothly, reducing noise and improving efficiency. For consistent comfort and lower operating costs, variable models outperform, though they cost significantly more upfront.

Does the 10-year warranty cover labor and refrigerant? +

No, the warranty covers parts only. Labor, refrigerant, and diagnostic fees are your responsibility. Extended labor plans and refrigerant coverage are available separately through dealers.

Affiliate disclosure: IndustrialRank earns a commission on qualifying purchases at no extra cost to you. We only recommend products we have independently reviewed.