3 Ton 13.4 SEER2 80,000 BTU Goodman Dual Fuel Heat Pump and Gas Package Unit Review 2026

// Bottom Line

This unit is built for contractors and homeowners in mixed climates who need dependable heating and cooling without premium pricing. The 13.4 SEER2 rating and 8.0 HSPF mean you'll see real energy savings compared to older equipment, especially in regions where you run both heat pump and gas furnace modes regularly.

Review

The Goodman GPDM3 represents mainstream dual-fuel thinking, pairing a heat pump with natural gas backup for markets where winter heating is significant enough to justify the investment. At 3 tons cooling capacity and 80,000 BTU heating output, it addresses the gap between pure electric heat pumps and traditional gas furnaces. The 13.4 SEER2 rating positions it solidly in today's efficiency baseline, while the $5,262 price keeps it accessible to residential contractors managing customer budgets.

Performance metrics show a competent but not exceptional unit. The 13.4 SEER2 cooling efficiency translates to roughly 1,200 maximum CFM with the 5-speed EEM blower motor, running at 76 dB from a single-stage scroll compressor. The 8.0 HSPF heat pump rating handles spring and fall transitions well, though the 80% AFUE gas furnace is purely functional, not cutting-edge. With 208/230V single-phase power and 40-amp maximum breaker sizing, installation fits standard residential electrical without major upgrades.

Pros & Cons

Pros

13.4 SEER2 rating delivers solid cooling efficiency, roughly 30% better than 10 SEER equipment from a decade ago
80,000 BTU heating capacity with two-stage gas burner handles cold climates better than heat pump alone
Pre-charged with 124 oz R410A refrigerant reduces installation labor and potential leak points
5-speed EEM blower motor optimizes airflow and reduces runtime noise at 76 dB
Direct drive scroll compressor is proven design with fewer moving parts than reciprocating alternatives

Cons

Single-stage cooling compressor means it runs full blast or off, no modulation for mild weather efficiency
Controller not included, requiring separate purchase and adds to total project cost
80% AFUE furnace is baseline efficiency, modern units push 95% AFUE
76 dB noise level is louder than high-end competitors, noticeable to neighbors in quiet areas

Who Should Buy

Best For

Contractors installing systems in moderate climates where dual-fuel makes economic sense, and homeowners replacing aging 10-13 SEER equipment on a realistic budget. This works well in zones where winter heating is needed 3-4 months yearly.

Consider Alternatives If

Anyone in consistently cold climates needing maximum heating efficiency should look at 95+ AFUE furnaces, and customers bothered by outdoor unit noise should audition quieter models around 72-73 dB.

3 Ton 13.4 SEER2 80,000 BTU Goodman Dual Fuel Heat

$5262

Buy at HVACDirect →

Installation

Pre-charged refrigerant is a genuine time-saver, eliminating field charging complexity and reducing commissioning from hours to minutes. Downflow/horizontal configuration suits basement or closet placement. You'll need a 25 to 40-amp dedicated circuit, standard for most homes. The 440-pound weight requires two technicians or mechanical lift assistance. Controller comes separate, so factor an additional controller purchase into project budgeting.

Warranty & Reliability

Ten-year parts coverage with online registration is competitive for this price tier, matching or beating most Goodman competitors. Coverage includes compressor, heat exchanger, and blower assembly defects. Registration is straightforward online. Note that labor is not covered, and voiding can occur with improper installation or failure to maintain filter changes per manual specifications.

Specifications

SKU	GPDM33608041
Brand/Manufacturer	Goodman
Cooling BTU	34,000 BTU
Heating BTU	80,000 BTU
Refrigerant	R410A
Electrical	208 / 230 V. 1 Phase 60 Hz
Warranty	10 Years with Online Registration
Decibel Level (dBA)	76 dB
Weight (in lbs)	440.000000
Feature	Spec
Refrigerant Charge	124 Oz
AHRI Certificate Number	209319582
Replaces	GPD1436080M41
Controller	Not Included
Additional Information	Pre-Charged for Easy Installation
Furnace Efficiency / AFUE	80%
Blower Motor	5 Speed EEM
Drive Type	Direct
Maximum CFM	1,200
Motor RPM	880
Horsepower	1/2
Configuration	Downflow/Horizontal
Efficiency	81%
HSPF	8.0
SEER2 (Efficiency)	13.4
Condenser Stages	Single Stage
Compressor Type	Scroll
Max Breaker Size	40 Amps
Min. Breaker Size	25 Amps
Tonnage	3 Ton
Low NOx	Low NOx
Burner Stages	Two
Fuel Type	Natural Gas
Height	34 1/2"
Width	47"
Depth	51"
Location	Outdoor
Resources	GPDM3 Installation Manual GPDM3 Specifications Sheet GPDM3 Replacement Parts Manual GPDM3 Service Manual Goodman Packaged Unit 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.

Frequently Asked Questions

What does 13.4 SEER2 really mean in my monthly bill? +

SEER2 reflects real-world cooling at high outdoor temps. At 13.4 SEER2, you're using roughly 30% less electricity than a 10 SEER unit from 2010. Monthly savings depend on your local climate and usage, but a Texas homeowner might see $15-25 monthly reductions versus older equipment during peak summer.

Do I need an external controller, and what will it cost? +

Yes, this unit ships without a thermostat or control board. You'll need a compatible Goodman or universal dual-fuel controller, running $400-800 installed depending on features. Budget this as a separate line item before purchase to avoid surprises.

How does 8.0 HSPF heating compare to a traditional furnace? +

The 8.0 HSPF heat pump mode is efficient in 35-50 degree weather but weak below 20 degrees. That's why the 80% AFUE gas furnace kicks in during winter. In moderate climates, you'll run heat pump mode 60-70% of heating season, saving substantially on gas costs.

Is Goodman reliability solid compared to Carrier or Lennox? +

Goodman scroll compressors have proven track records in commercial and residential work. They're not premium, but breakdowns are uncommon within the five-year warranty overlap period. Expect similar lifespans to mid-tier Carrier or Lennox units, usually 12-15 years with proper maintenance.

What happens if the compressor fails after year 5? +

Parts are covered under the 10-year warranty, but out-of-pocket labor can run $2,000-3,000 for compressor replacement. Consider extended service contracts if longevity beyond 10 years is important to you.

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