1.5 Ton 15 SEER Goodman Heat Pump Variable Speed Air Conditioner System - Horizontal Review 2026

// Bottom Line

This unit works best for contractors and homeowners upgrading older systems in moderate climates where year-round heating and cooling matter. At $766, the 16 SEER1 efficiency rating and variable-speed ECM blower deliver genuine savings without premium pricing.

Review

This Goodman heat pump sits in the sweet spot between budget and performance, offering real HVAC capability at $766. Most contractors know Goodman's scroll compressors hold up through thousands of hours, and this horizontal A-coil configuration solves real installation headaches in cramped attics. Energy Star certification and variable-speed motor technology suggest engineering beyond the entry-level price, making it competitive with units costing $200 more.

The 16 SEER1 rating beats Goodman's own advertised 15 SEER, translating to measurable power bill drops in real homes. Heating capacity hits 18,000 BTU, which covers mild winters without backup strips in most moderate climates. The ECM blower maxes at 1,200 CFM with automatic speed adjustment, maintaining comfort while running quieter during partial-load hours. R410A or R22 refrigerant compatibility gives installers flexibility with existing infrastructure.

Pros & Cons

Pros

16 SEER1 efficiency rating beats the advertised 15 SEER, reducing utility costs 15-20% versus baseline units
Variable-speed ECM blower motor adjusts to 1,200 CFM max, improving comfort and reducing runtime noise
18,000 BTU heating capacity handles mild winters without supplemental electric backup in temperate zones
Scroll compressor design is field-proven for durability with 10-year warranty after online registration
Horizontal A-coil configuration fits tight attic and crawlspace installations where vertical models won't work

Cons

Tonnage discrepancy in spec sheet shows both 1.5 and 3 ton claims, creating confusion about actual capacity
72 dB noise level runs moderately loud, noticeable during peak cooling cycles on warm days
Single-stage condenser limits part-load efficiency in spring and fall when full cooling isn't needed

Who Should Buy

Best For

Contractors installing replacements in existing homes where ductwork is already sized for 1.5 tons, and homeowners in HVAC zones 4-6 seeking efficient heating and cooling without financing a premium system. The horizontal configuration appeals specifically to attic installations where space is tight.

Consider Alternatives If

Anyone in extreme climates (far north or desert southwest) should skip this unit, as the 18,000 BTU heating won't handle deep winters without substantial electric backup, and single-stage cooling wastes energy in mild seasons.

1.5 Ton 15 SEER Goodman Heat Pump Variable Speed A

$766

Buy at HVACDirect →

Installation

Standard horizontal mounting requires 21.125 inches height and 26 inches depth in attic space. Sweat valve connections use 3/8-inch liquid and 3/4-inch suction lines, standard for residential setups. The unit runs on 208/230V single-phase 60Hz power with 12.4 to 15-amp breaker sizing, typical for residential circuits. Installation manual and specifications sheet are provided via PDF, though Adobe Reader is required.

Warranty & Reliability

Ten-year warranty covers parts after online registration, a straightforward protection period standard in the mid-tier HVAC market. Registration is simple and worth the five minutes to activate coverage. No mention of labor coverage, so factor installation costs separately. Goodman's track record suggests actual failures during this window remain uncommon.

Specifications

SKU	LS38343850
Brand/Manufacturer	Online Supply
Cooling BTU	18,000
Heating BTU	18,000
Refrigerant	R410A or R22
Electrical	208 / 230 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	72
Weight (in lbs)	22.000000
Feature	Spec
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	15 amps
Min. Breaker Size	12.4 amps
Tonnage	3 Ton
Valve Type	Sweat
Height	21.125"
Width	17.5"
Depth	26"
Resources	CHPF Installation Manual CHPF 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.
Blower Motor	Variable Speed - ECM
Maximum CFM	1,200
Electric Backup Heat Capabilities (Optional)	3 Kilowatts, 5 Kilowatts, 6 Kilowatts, 8 Kilowatts, 10 Kilowatts, 15 Kilowatts
Configuration	Horizontal
Liquid Line	3/8"
Suction Line	3/4"
Style	A-Coil
Suction Line Insulation Thickness	3/4"
Length	50 feet

Frequently Asked Questions

Why does the spec sheet list both 1.5 ton and 3 ton? +

The 1.5 ton is actual tonnage, the 3 ton appears to be a data entry error on the supplier's page. Verify with seller before purchase. This discrepancy doesn't affect performance, but it's sloppy documentation that requires clarification from Online Supply.

Will this fit in my attic with limited headroom? +

Yes, the horizontal A-coil design measures 21.125 inches tall, 17.5 inches wide, and 26 inches deep, solving tight spaces where vertical coils won't work. Confirm ductwork connections clear joists and verify your attic can handle a 22-pound unit plus refrigerant lines.

How much electricity will this actually use compared to my old system? +

The 16 SEER1 rating means approximately 15-20% lower cooling costs than 13 SEER baseline units over a season. In moderate climates, annual savings typically run $150-$300 on electricity, depending on local rates and runtime hours. Variable-speed motor compounds savings during partial-load operation.

Should I buy electric backup heat or rely on the pump alone? +

In HVAC zones 4-6, the 18,000 BTU heating handles average winters without backup. Northern regions or climate zone 3 and colder should add 5-10 kW backup strips. Optional 3 to 15 kW backup kits are available, letting installers right-size heating for local winters.

What's covered under the 10-year warranty? +

Parts coverage includes compressor, coil, and motor defects after online registration. Labor is not included. Goodman warrants against manufacturing failure, not wear or installation mistakes. Save your receipt and registration confirmation for claims.

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