2 Ton 15 SEER 96% AFUE 80,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow Review 2026

// Bottom Line

This Goodman system is ideal for homeowners upgrading from older units and wanting measurable energy savings without premium pricing. The 96% AFUE furnace and 16 SEER2 condenser deliver strong performance in mixed climates, particularly where heating and cooling loads are balanced year-round.

Review

The Goodman 2-ton upflow system (model LS38343850) represents solid mid-market engineering for homes requiring reliable combined heating and cooling. This unit pairs an 80,000 BTU furnace with a 23,600 BTU cooling condenser in a space-conscious A-coil configuration. It's ENERGY STAR certified and delivers respectable efficiency at a price point accessible to budget-conscious contractors and homeowners. The upflow design suits basements and utility closets, while the variable-speed blower adds operational sophistication often missing from budget units.

Performance data shows why this system punches above its price tier. The furnace achieves 96% AFUE, meaning 96 cents of every heating dollar converts to warmth rather than exhaust loss. The air conditioner delivers 16 SEER2 efficiency, exceeding the 15 SEER specification. Variable-speed ECM blower technology means the unit modulates airflow between 0 and 1600 CFM based on actual demand, reducing short-cycling and runtime noise compared to fixed-speed motors. Two-stage burner operation during mild heating days further reduces energy consumption.

Pros & Cons

Pros

96% AFUE furnace efficiency means minimal fuel waste and lower winter heating bills
16 SEER2 condenser rating significantly outperforms the 15 SEER minimum specification
Variable-speed ECM blower motor adapts to actual demand, reducing runtime and energy use
Two-stage burner allows the furnace to run at lower capacity during mild weather for quieter, more efficient operation
ENERGY STAR certified with 10-year warranty when registered online

Cons

Single-stage compressor in the condenser limits part-load efficiency compared to two-stage units
71.5 dB noise level is moderately loud, noticeable during peak cooling cycles
Scroll compressor design is less tolerant of liquid slugging than rotary types, requiring proper installation and maintenance

Who Should Buy

Best For

Homeowners in HVAC zones needing balanced heating and cooling who prioritize energy efficiency over premium features. Contractors looking for a reliable mid-tier system that meets ENERGY STAR requirements without overspending on variable-capacity compressors.

Consider Alternatives If

Anyone requiring ultra-quiet operation or living in climates where either heating or cooling dominates should explore two-stage or variable-capacity alternatives.

2 Ton 15 SEER 96% AFUE 80,000 BTU Goodman Gas Furn

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Installation

Installation requires a qualified technician for refrigerant handling, electrical setup, and gas line connections. The unit operates on 115V single-phase 60Hz power and draws 12.4 to 20 amps, fitting standard residential service. Plastic or PVC exhaust venting is required, simplifying ductwork modifications versus older metal flue systems. Suction line insulation (3/4 inch thickness, 50 feet) and proper evacuation procedures are critical for reliability.

Warranty & Reliability

Goodman includes a 10-year parts warranty when owners register online, providing solid coverage for compressor and heat exchanger failure. This matches industry standard mid-tier protection but lacks the extended terms some competitors offer. Registration is straightforward and recommended immediately after installation to activate coverage and simplify future claims.

Specifications

SKU	LS38343850
Brand/Manufacturer	Online Supply
Cooling BTU	23,600
Heating BTU	80,000
Refrigerant	R410A or R22
Electrical	115 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	71.5
Weight (in lbs)	22.000000
Feature	Spec
Replaces	GSX16S241
Energy Star	Yes
SEER1 (Efficiency)	16
Condenser Stages	Single Stage
Compressor Type	Scroll
Liquid Valve Size	3/8"
Suction Valve Size	3/4"
Max Breaker Size	20 amps
Min. Breaker Size	12.4 amps
Tonnage	3.5 Ton
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.
AHRI Certificate Number	7368835
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Furnace Efficiency / AFUE	96%
Blower Motor	Variable Speed - ECM
Maximum CFM	1600
Configuration	Upflow / Downflow
Flue Location	Right
Burner Stages	Two
Fuel Type	Propane, Natural Gas
Liquid Line	3/8"
Suction Line	3/4"
Style	A-Coil
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

How much heating and cooling capacity does this unit provide? +

The furnace delivers 80,000 BTU of heating output. The condenser provides 23,600 BTU of cooling, matching a 2-ton air conditioning system. This suits homes of 1,200 to 1,800 square feet in moderate climates where heating and cooling loads are relatively balanced throughout the year.

Will this unit fit in a standard basement utility closet? +

Yes, dimensions are 26 inches tall, 21 inches wide, and 21 inches deep. Most basement closets and utility spaces accommodate this footprint. The upflow configuration and right-side flue location provide flexibility for typical residential installations.

What efficiency improvements should I expect versus an older system? +

If replacing a 78% AFUE furnace and 10 SEER air conditioner from 2005, expect 15-25% annual energy savings. The 96% AFUE furnace reduces heating bills substantially, while 16 SEER2 cooling provides notable summer efficiency gains, with payback typically within 7-9 years.

How does this compare to premium Goodman or carrier systems? +

This model uses a single-stage compressor versus variable-capacity designs in premium units. That means slightly higher full-load efficiency but less flexibility during partial-load conditions. Two-stage furnace burners and ECM blower bring it closer to higher tiers than the price suggests.

Is registration necessary for the warranty to be valid? +

Yes, Goodman requires online registration within a specified period to activate the full 10-year warranty. Without registration, coverage is limited to shorter timeframes. Registration is quick and protects your investment.

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