3.5 Ton 14 SEER 92% AFUE 80,000 BTU Goodman Gas Furnace and Heat Pump System - Upflow Review 2026

// Bottom Line

This Goodman system works well for homeowners in moderate climates wanting reliable heating and cooling without premium pricing. The 92% AFUE gas furnace and 16 SEER heat pump combination delivers genuine energy savings, particularly in regions with moderate heating demands where the single-stage burner won't cycle excessively.

Review

Goodman's dual-fuel system combines a 92% AFUE gas furnace with a 16 SEER heat pump condenser in a compact upflow configuration. Designed for moderate climates, this 3.5-ton unit ships fully charged with R410A refrigerant and multi-speed blower technology. The setup handles both heating and cooling, making it popular among budget-conscious contractors and homeowners who want Energy Star compliance without premium-brand pricing.

The furnace generates 42,000 BTU of heating output using a single-stage burner fired by 208/230V single-phase power. Cooling capacity matches at 42,000 BTU through a scroll compressor running at single-stage compression. The multi-speed blower pushes up to 1,600 CFM, and PVC exhaust compatibility simplifies installation. This combination achieves real-world efficiency gains, though the single-stage burner operates at full capacity regardless of heating demand, reducing part-load efficiency compared to modulating designs.

Pros & Cons

Pros

92% AFUE furnace efficiency exceeds federal minimum standards and qualifies for many utility rebates
16 SEER cooling efficiency (SEER1 rating) cuts air conditioning costs significantly versus older 10-13 SEER units
Multi-speed blower motor allows better airflow control and quieter operation at partial load
PVC exhaust compatible with modern building codes and reduces installation costs versus rigid ducting
10-year warranty with online registration provides solid coverage for furnace and coil components

Cons

Single-stage burner means furnace runs full output or not at all, reducing efficiency on mild winter days
42,000 BTU heating capacity undershoots the stated 3.5 ton rating, creating potential comfort gaps in cold climates
73 dB noise level approaches upper-acceptable range, noticeable during heating cycles in quiet homes
Requires 208/230V single-phase power, limiting installation in some older homes with only 120V service

Who Should Buy

Best For

Homeowners in zones 4-6 replacing 15+ year old systems and prioritizing balanced efficiency and affordability. This system fits tight budgets while delivering measurable savings on both heating and cooling bills through its solid AFUE and SEER ratings.

Consider Alternatives If

Anyone in consistently cold climates (zones 1-3) should investigate modulating or two-stage furnaces that provide better efficiency on partial-load heating days common in harsh winters.

3.5 Ton 14 SEER 92% AFUE 80,000 BTU Goodman Gas Fu

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Installation

Installation requires 208/230V single-phase 60 Hz service with a 22.4 to 35-amp breaker. The upflow configuration suits basements and closet placement. Suction line insulation (1/2 inch) and pre-charged refrigerant lines with sweat valve connections demand proper brazing skills. PVC exhaust venting simplifies flue runs compared to rigid pipe. Most installations complete in one day with experienced technicians familiar with Goodman equipment.

Warranty & Reliability

Goodman provides 10 years comprehensive coverage when registered online within 30 days of installation. Coverage includes the furnace, heat pump compressor, and A-coil evaporator. This surpasses many budget brands but trails Carrier and Lennox extended warranties. Registration matters, so document the installation date and serial numbers immediately to activate protection.

Specifications

SKU	LS381183850
Brand/Manufacturer	Online Supply
Cooling BTU	42,000
Heating BTU	42,000
Refrigerant	R410A
Electrical	208 / 230 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	73
Weight (in lbs)	48.000000
Feature	Spec
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Plastic / PVC
Furnace Efficiency / AFUE	92%
Blower Motor	Multi Speed
Maximum CFM	1600
Configuration	Upflow / Downflow
Flue Location	Right
Burner Stages	Single
Fuel Type	Gas
Height	30"
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.
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	35 amps
Min. Breaker Size	22.4 amps
Tonnage	5 Ton
Valve Type	Sweat
Liquid Line	3/8"
Suction Line	1 1/8"
Style	A-Coil
Suction Line Insulation Thickness	1/2"
Length	50 feet

Frequently Asked Questions

Why does the specs list 3.5 ton but show 42,000 BTU heating output? +

True 3.5-ton capacity equals approximately 42,000 BTU. The tonnage rating refers to cooling capacity primarily. However, some contractors note this undershoots heating needs in harsh climates, making it better suited for zones 4-6 than northern regions requiring 50,000+ BTU furnaces.

Can this install in homes with 120V-only electrical service? +

No. This system requires 208/230V single-phase service with appropriate breaker sizing. Homes with only 120V service need either electrical panel upgrades or selection of a different system rated for lower voltage operation.

How does 16 SEER rating translate to actual cooling bills? +

16 SEER means 16 BTU of cooling per watt consumed. Compared to a 13 SEER unit, expect roughly 20 percent lower summer electricity costs. Actual savings depend on local rates, usage patterns, and thermostat settings but typically total $100 to 200 annually in moderate climates.

Is this better than a Rheem or Carrier equivalent? +

Goodman delivers similar efficiency and reliability at lower upfront cost. Carrier and Rheem offer better warranty terms and slightly quieter operation. Choose Goodman for budget-conscious replacements, Carrier for long-term warranty peace of mind in critical comfort applications.

What happens if I don't register the warranty online? +

Without registration, warranty defaults to five years instead of ten. Registration requires proof of purchase and installation date. Complete it immediately after installation to secure full ten-year coverage for all components.

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