Independent Review · Updated June 2026

3 Ton 15 SEER 96% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow

High-efficiency Goodman system delivers 96% heating and strong cooling performance

8.2
IndustrialRank Score
Efficiency
8.5
Reliability
7.8
Value
8.0
Installation
8.5
Warranty
8.0
3 Ton 15 SEER 96% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow
Current Price
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// Bottom Line
This Goodman system is ideal for contractors and homeowners upgrading to a reliable, efficient split system in homes requiring upflow installation. The 96% AFUE furnace and 16 SEER2 air conditioner strike a strong balance between performance, operating costs, and upfront investment.

Review

The Goodman 3-ton gas furnace and air conditioner system represents a solid midmarket choice for residential HVAC replacement projects. Manufactured by Online Supply and designed for upflow installation, this unit balances efficiency gains with contractor-friendly specs. The combination of a 96% AFUE furnace with a 16 SEER2 cooler makes sense for homeowners tired of aging equipment but unwilling to invest in premium systems. Goodman's reputation for straightforward engineering and parts availability has earned contractor trust over decades.

Performance metrics confirm this system's capable design. The furnace delivers 100,000 BTU of heating through a two-stage burner, while the 3-ton condenser produces 34,800 BTU of cooling. An ECM multi-speed blower reaches 1,600 CFM maximum and modulates heating delivery for better comfort. The 96% AFUE rating means substantially lower gas bills compared to 80-90% baseline units. At 16 SEER2, cooling efficiency sits above mid-market standards. Electrical requirements are modest, needing only 208/230V single-phase service with 18.7 to 30 amp breaker sizing.

Pros & Cons

Pros

  • Exceptional 96% AFUE furnace efficiency cuts heating costs significantly compared to standard 80% systems
  • 16 SEER2 cooling rating delivers solid air conditioning efficiency for energy-conscious homeowners
  • Two-stage burner and ECM blower motor provide precise temperature control and quieter operation
  • PVC flue compatibility simplifies installation in modern homes without masonry chimneys
  • 10-year warranty with online registration offers solid protection for residential applications

Cons

  • 73.5 dB noise level runs louder than premium systems, noticeable during furnace operation
  • Single-stage cooling condenser lacks modulating capability of higher-end units
  • Specs show conflicting tonnage information, creating potential confusion during ordering

Who Should Buy

Best For

Contractors installing systems in homes with upflow ductwork constraints and homeowners seeking reliable mid-tier efficiency without premium pricing. This system works well for moderate climates where heating demands justify the efficient furnace but extreme cooling loads aren't a primary concern.

Consider Alternatives If

Buyers in extremely hot climates needing variable-capacity cooling or those seeking the quietest possible operation should explore alternatives.

3 Ton 15 SEER 96% AFUE 100,000 BTU Goodman Gas Fur
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Installation

Installation follows standard split-system protocols. PVC flue compatibility eliminates costly chimney modifications in homes lacking masonry vents. The unit accepts R410A or R22 refrigerant, though R22 availability requires upgrading existing systems. Upflow configuration works with right-side flue positioning. Included A-coil evaporator and 50-foot suction/liquid line set simplify field setup. Contractors should verify 208/230V availability before installation begins.

Warranty & Reliability

Goodman provides 10 years of coverage with online registration, protecting compressor, coils, and heat exchanger. This extended warranty period exceeds many competitors and reflects manufacturer confidence in component durability. Coverage requires proper installation and maintenance but doesn't impose unusual restrictions that complicate claims processing.

Specifications

SKULS38783850
Brand/ManufacturerOnline Supply
Cooling BTU34,800
Heating BTU100,000
RefrigerantR410A or R22
Electrical208 / 230 V. 1 Phase 60 Hz
Warranty10 Years with Online Registration
Decibel Level (dBA)73.5
Weight (in lbs)30.000000
FeatureSpec
Airflow DirectionUpflow/Horizontal
Exhaust Flue RequirementPlastic / PVC
Furnace Efficiency / AFUE96%
Blower MotorMulti-Speed - ECM
Maximum CFM1600
ConfigurationUpflow / Downflow
Flue LocationRight
Energy StarYes
Burner StagesTwo
Fuel TypeGas
Height30"
Width21"
Depth21"
ResourcesCAPF Installation Manual CAPF Specifications Sheet Goodman Evaporator Coil Warranty You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 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.
SEER1 (Efficiency)16
Condenser StagesSingle Stage
Compressor TypeScroll
Liquid Valve Size3/8"
Suction Valve Size7/8"
Max Breaker Size30 amps
Min. Breaker Size18.7 amps
Tonnage5 Ton
Liquid Line3/8"
Suction Line7/8"
StyleA-Coil
Suction Line Insulation Thickness3/4"
Length50 feet

Frequently Asked Questions

Does this system truly deliver 3 tons of cooling? +
Specs list both 3-ton and 5-ton tonnage, creating confusion. The 34,800 BTU cooling output confirms 3-ton capacity. Request clarification from Online Supply before purchasing to ensure proper indoor coil matching and system balance.
Can I install this in a downflow application? +
The unit supports both upflow and downflow configurations despite right-side flue positioning. Verify flue routing feasibility in downflow setups since PVC vent termination requires careful planning to avoid condensation and freezing issues in cold climates.
How does 96% AFUE compare to my current furnace? +
Standard furnaces operate at 80-90% AFUE. The extra 6-16 points translate to 6-16% lower heating costs annually. On a 100,000 BTU furnace, this savings compounds significantly over the 15-20 year equipment lifespan, typically recovering the efficiency premium within 3-5 years.
Should I buy this instead of a high-SEER variable-capacity system? +
Premium systems cost 30-50% more for marginal efficiency gains. This unit's 16 SEER2 and 96% AFUE provide excellent value. Buy premium cooling only if your climate has severe summer peaks or if long-term cost-of-ownership analysis justifies it.
What does the 10-year warranty actually cover? +
Goodman covers compressor, coils, and heat exchanger defects. Normal maintenance and refrigerant are homeowner responsibility. Registration is mandatory, so complete paperwork immediately after installation to activate coverage.

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