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

// Bottom Line

This Goodman system is ideal for contractors and homeowners in mixed climates wanting efficient heating and cooling without premium pricing. At $2053, it delivers respectable efficiency (14 SEER, 80% AFUE) with solid Goodman reliability and a 10-year warranty, making it a practical mid-tier choice for renovation projects or new builds.

Review

The Goodman 3 Ton gas furnace and heat pump system represents a pragmatic middle ground in HVAC equipment. At $2053, it combines heating and cooling capabilities in one compact upflow unit, making it attractive for space-constrained installations. This A-coil configuration works well in residential applications where ducting requires horizontal or upward airflow. Goodman's reputation for solid construction and service parts availability supports its standing among contractors who prioritize reliability over cutting-edge features.

Performance figures tell a practical story. The 14 SEER rating for the heat pump cooling and 80% AFUE for the gas furnace provide mid-tier efficiency, saving modest energy costs compared to older equipment. Cooling capacity sits at 36,000 BTU, while gas heating delivers 80,000 BTU across two burner stages. The variable-speed blower motor keeps the 74 dB noise output reasonable for residential settings. Standard R410A refrigerant, a scroll compressor, and 120V single-phase electrical requirements keep installation straightforward for most technicians.

Pros & Cons

Pros

14 SEER rating meets Energy Star standards with proven efficiency for moderate cooling demands
Dual-fuel flexibility with 80,000 BTU gas heating and 36,000 BTU heat pump cooling in one unit
Variable speed blower motor optimizes airflow and reduces noise at 74 dB during operation
Two-stage burner provides efficiency and comfort by adjusting to heating load automatically
10-year warranty with online registration covers parts and gives peace of mind for contractors
Scroll compressor design is reliable, field-proven, and easier for technicians to service

Cons

Single-stage compressor limits modulation efficiency compared to variable-stage competitors
80% AFUE is adequate but not high-end, limiting gas heating efficiency gains
Product spec sheet shows 5 ton tonnage but title claims 3 ton, creating potential confusion
74 dB operating level is noticeable in quiet residential settings during peak cooling

Who Should Buy

Best For

Contractors doing moderate-budget residential retrofits or new construction in areas with mixed heating and cooling seasons will appreciate this system's balance of performance and cost. Homeowners seeking practical efficiency without premium pricing find good value in the 14 SEER rating and dual-fuel flexibility.

Consider Alternatives If

Buyers in extremely hot climates needing maximum cooling capacity or those prioritizing ultra-high efficiency should explore variable-speed compressor models or higher SEER ratings.

3 Ton 14 SEER 80% AFUE 80,000 BTU Goodman Gas Furn

$2053

Buy at HVACDirect →

Installation

Installation requires standard HVAC practices with no unexpected complexity. The unit needs 22.4 to 30 amp electrical service at 120V, 1 phase, 60 Hz. Suction and liquid valve sizing (3/4 inch and 3/8 inch respectively) are common for systems this size. Metal exhaust flue is required for gas operation. Sweat-type valve connections allow experienced installers quick setup, though brazing skills are necessary. Dimensions of 34.5 inches by 21 inches by 28.75 inches fit most mechanical closets.

Warranty & Reliability

Goodman provides a solid 10-year parts warranty when you register the unit online, a reasonable protection period for residential buyers. This covers compressor, coil, and major components against manufacturing defects. Labor warranty terms vary by installer, so clarify coverage before purchase. Registration is straightforward through Goodman's website and takes minutes. This warranty duration matches or exceeds many competitor offerings at this price point.

Specifications

SKU	LS38783850
Brand/Manufacturer	Online Supply
Cooling BTU	36,000
Heating BTU	80,000
Refrigerant	R410A or R22
Electrical	120 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	74
Weight (in lbs)	30.000000
Feature	Spec
Replaces	GSZ140371
Product Features	Rebate Available
Energy Star	Yes
SEER1 (Efficiency)	14
Condenser Stages	Single Stage
Compressor Type	Scroll
Liquid Valve Size	3/8"
Suction Valve Size	3/4"
Max Breaker Size	30 amps
Min. Breaker Size	22.4 amps
Tonnage	5 Ton
Valve Type	Sweat
Height	34.5"
Width	21"
Depth	28.75"
Resources	Goodman Brochure Goodman Installation Instructions Goodman Parts Manual Goodman Service Manual Goodman Technical Information Goodman User Information Goodman Warranty You will need AdobeÂ® AcrobatÂ® 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.
Configuration	Upflow/Horizontal
Liquid Line	3/8"
Suction Line	7/8"
Style	A-Coil
AHRI Certificate Number	204633302
Airflow Direction	Upflow/Horizontal
Exhaust Flue Requirement	Metal
Furnace Efficiency / AFUE	80%
Blower Motor	Variable Speed
Maximum CFM	2000
Burner Stages	Two
Fuel Type	Propane, Natural Gas
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

Why does the spec sheet list 5 ton tonnage when the product is marketed as 3 ton? +

This is a documentation inconsistency worth clarifying with the seller. The 36,000 BTU cooling capacity and three-ton designation are the accurate figures. The five-ton notation may reference a larger platform this unit shares with other models. Request AHRI certification (204633302) to confirm exact specifications before purchase.

What are the suction and liquid line sizes I need for installation? +

Suction line is 3/4 inch diameter with 3/4 inch insulation thickness, and the liquid line is 3/8 inch. A 50-foot pre-charged line set is included. These standard sizes fit typical residential runs. For longer distances or unusual layouts, consult Goodman's installation manual to confirm adequate refrigerant charge.

How does the 14 SEER rating translate to real-world energy savings? +

A 14 SEER unit uses roughly 28% less energy than a 10 SEER system for identical cooling output. In moderate climates, annual cooling cost reduction runs $150 to $300 depending on local electricity rates and usage patterns. The 80% AFUE furnace adds modest gas heating savings compared to 78% baseline equipment, though gains are smaller in mild winters.

How does this compare to higher-SEER heat pump systems at similar price points? +

Higher SEER models (16 to 18) typically cost $500 to $1200 more and use variable-stage compressors. For moderate climates, this 14 SEER single-stage unit justifies its lower cost with proven reliability, easier repair access, and comparable cooling comfort. Premium efficiency models benefit mainly homeowners in hot climates using air conditioning heavily year-round.

Is online registration required for the warranty to be valid? +

Yes, Goodman requires online registration to activate the full 10-year warranty. Registration is free and takes a few minutes on their website. Without registration, warranty coverage is significantly reduced, so complete this immediately after installation to protect your investment.

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