4 Ton 16 SEER Goodman Heat Pump Variable Speed Air Conditioner System - Upflow/Downflow Review 2026

// Bottom Line

This 4-ton Goodman unit is ideal for contractors and homeowners replacing existing systems in homes up to 2,000 square feet with moderate to high cooling demands. The variable-speed ECM blower and 16 SEER rating deliver meaningful energy savings, while flexible backup heat options (3-20 kW) make it work in diverse climates.

Review

The 4-ton Goodman heat pump occupies a sweet spot in the residential market where efficiency meets practical installation flexibility. At 16 SEER1, this unit qualifies as ENERGY STAR and delivers legitimate energy savings without requiring exotic refrigerants or complicated controls. It's designed for contractors who need a reliable workhorse and homeowners willing to invest slightly above entry-level pricing for meaningfully better performance.

Performance specs show 48,000 BTU cooling and heating capacity with a variable-speed ECM blower topping out at 2,000 CFM. The scroll compressor handles single-stage compression efficiently without the complexity of modulating designs. Liquid and suction lines measure 3/8 inch and 1 1/8 inch respectively, with 1/2 inch insulation on 50 feet of pre-insulated suction line included. This straightforward refrigerant circuit uses R410A and operates cleanly at 74 dBA.

Pros & Cons

Pros

16 SEER rating exceeds most utility rebate minimums and delivers approximately 20-25% better efficiency than standard 13 SEER units
Variable-speed ECM blower motor runs quietly at 74 dBA and adjusts output from 0-2,000 CFM for consistent comfort
Flexible electric backup heat from 3 kW to 20 kW covers everything from mild climates to harsh winters
A-coil configuration with upflow/downflow flexibility simplifies installation in tight spaces and various home layouts
10-year warranty with online registration provides meaningful protection for residential applications

Cons

Single-stage compressor cannot modulate capacity, so variable-speed benefits are limited compared to dual-stage or inverter models
74 dBA noise level is acceptable but not class-leading, noticeable during operation in quiet neighborhoods
Requires 26.4-45 amp breaker and 208/230V single-phase service, limiting compatibility with older electrical panels

Who Should Buy

Best For

This unit fits homeowners in moderate climates seeking to upgrade from aged heat pumps, and contractors installing replacements where upflow/downflow flexibility matters. It's especially practical for homes already rated for the electrical requirements and those targeting modest utility rebates.

Consider Alternatives If

Skip this if you need the absolute quietest operation, prefer inverter-driven variable capacity, or live in a region without reliable electric infrastructure for backup heat strips.

4 Ton 16 SEER Goodman Heat Pump Variable Speed Air

Buy at HVACDirect →

Installation

Installation requires 208/230V single-phase 60 Hz service with a 26.4-45 amp breaker sized appropriately for your electrical panel. The A-coil design fits both upflow and downflow configurations, simplifying placement in basements, attics, or tight utility closets. Pre-insulated suction lines and straightforward valve connections keep job time reasonable for experienced HVAC crews familiar with Goodman units.

Warranty & Reliability

Goodman provides a 10-year parts warranty when you register the unit online after installation. This coverage protects against compressor failure, component defects, and refrigerant leaks, though labor costs remain the homeowner's responsibility. Registration is straightforward and documented in included warranty materials.

Specifications

SKU	LS381183850
Brand/Manufacturer	Online Supply
Cooling BTU	48,000
Heating BTU	48,000
Refrigerant	R410A
Electrical	208 / 230 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	74
Weight (in lbs)	48.000000
Feature	Spec
Blower Motor	Variable Speed - ECM
Maximum CFM	2,000
Electric Backup Heat Capabilities (Optional)	3 Kilowatts, 5 Kilowatts, 6 Kilowatts, 8 Kilowatts, 10 Kilowatts, 15 Kilowatts, 20 Kilowatts
Max Breaker Size	45 amps
Tonnage	4 Ton
Height	35"
Width	35.5"
Depth	35.5"
Resources	Goodman Specifications Goodman Customer Brochure Goodman Installation Instructions Goodman Kit Instructions Goodman Parts Manual Goodman Service Manual 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 / Downflow
Liquid Line	3/8"
Suction Line	1 1/8"
Style	A-Coil
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"
Min. Breaker Size	26.4 amps
Valve Type	Sweat
Suction Line Insulation Thickness	1/2"
Length	50 feet

Frequently Asked Questions

How much will this heat pump reduce my cooling costs compared to a 13 SEER unit? +

The 16 SEER rating delivers roughly 23% better efficiency than 13 SEER equipment. In a home running AC 2,000 hours annually, expect annual savings of $200-400 depending on local electricity rates and your specific usage patterns. Utility rebates often offset $500-1,500 of upfront cost.

Can this unit fit in my existing furnace closet with upflow configuration? +

Yes. At 35 inches wide, 35.5 inches deep, and 35 inches tall, the A-coil footprint fits standard residential spaces. Upflow/downflow flexibility means you can orient it to match existing ductwork, though you'll need proper clearance for service access around the unit.

What makes the variable-speed blower better than standard motors? +

The ECM blower adjusts from 0-2,000 CFM based on heating or cooling demand, running at lower speeds during mild weather. This reduces energy consumption, improves humidity control, and delivers quieter operation. Standard single-speed motors run at full capacity constantly, wasting energy and creating comfort inconsistencies.

Is 16 SEER the same as SEER2, or are they different standards? +

They're different metrics. SEER1 (this unit's 16 rating) uses older testing conditions. SEER2 uses newer, stricter conditions and typically shows 15-20% lower numbers. A 16 SEER1 unit usually converts to roughly 12-13 SEER2 equivalent, still solid performance by current standards.

Do I really need online registration to get the 10-year warranty? +

Yes. Goodman requires registration within 30 days of installation. It takes five minutes online with your proof of purchase and serial number. Skipping registration voids the extended warranty, leaving you with minimal coverage.

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