Review
The Goodman GPDM34210041 is a packaged dual fuel unit designed for homeowners seeking simplicity and moderate efficiency. At 3.5 tons, it handles cooling and heating in one outdoor cabinet, eliminating the coordination challenges of separate components. Priced at $5,656, it positions itself in the middle market, appealing to contractors and homeowners balancing budget against modern performance standards. This unit replaces the older GPD1442100M41 model.
Cooling delivers 40,500 BTU through a scroll compressor with a 13.4 SEER2 rating, meeting current federal minimums competently. Heating adds 100,000 BTU via a two-stage natural gas burner at 80% AFUE efficiency. The 6.7 HSPF2 heating score indicates solid performance in shoulder seasons but not exceptional in deep cold. The 5-speed EEM blower motor pulls up to 1,313 CFM and runs at 76 dB, which is moderate noise for a packaged unit.
Pros & Cons
Pros
- 13.4 SEER2 cooling efficiency meets modern standards without premium pricing
- Complete dual fuel package eliminates matching headaches between AC and furnace components
- Downflow/horizontal configuration fits crawlspace and attic installations
- Two-stage burner with low NOx certification for natural gas efficiency
- 5-speed EEM blower motor allows quieter operation at partial load
Cons
- 80% AFUE gas efficiency lags high-efficiency units that reach 95%, costing more on heating bills over time
- 76 dB noise level is noticeably loud during operation compared to variable-speed alternatives
- Single-stage cooling means full compressor capacity regardless of temperature, less adaptive than two-stage designs
Who Should Buy
Best For
This unit fits homeowners in mixed-climate regions who heat and cool regularly and want one integrated package. Choose this if you need straightforward installation without complex controls and prefer moderate efficiency over premium performance.
Consider Alternatives If
Skip this if you're in a high-cooling climate (like the South or Southwest) where 13.4 SEER2 feels dated, or if you want the highest efficiency gas heating available with 95% AFUE ratings.
Installation
This downflow/horizontal unit requires proper staging for both heating and cooling circuits. Single-phase 208/230v electrical demands a 30 to 40-amp breaker, standard for residential service. Gas line sizing for 100,000 BTU must be verified during install. No controller is included, so integration with existing thermostats or new installations requires purchasing one separately. Weighing 525 pounds, it needs solid pad placement.
Warranty & Reliability
Goodman covers this unit for 10 years parts and labor with online registration. This duration is solid and typical for the brand, though some competitors offer limited lifetime coverage. Registration is required to activate the full term, so document your purchase carefully. Coverage protects against defects but excludes maintenance and wear items.
Specifications
| SKU | GPDM34210041 |
| Brand/Manufacturer | Goodman |
| Cooling BTU | 40,500 BTU |
| Heating BTU | 100,000 BTU |
| Refrigerant | R410A |
| Electrical | 208/230v 1Phase 60Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 76 dB |
| Weight (in lbs) | 525.000000 |
| Feature | Spec |
| Refrigerant Charge | 206 Oz |
| AHRI Certificate Number | 209319588 |
| Replaces | GPD1442100M41 |
| Controller | Not Included |
| Furnace Efficiency / AFUE | 80% |
| Blower Motor | 5 Speed EEM |
| Drive Type | Direct |
| Maximum CFM | 1,313 |
| Motor RPM | 880 |
| Horsepower | 3/4 |
| Configuration | Downflow/Horizontal |
| Efficiency | 81% |
| HSPF2 | 6.7 |
| SEER2 (Efficiency) | 13.4 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Phase | Single Phase |
| Max Breaker Size | 40 amps |
| Min. Breaker Size | 30 Amps |
| Tonnage | 3.5 Ton |
| Low NOx | Low NOx |
| Burner Stages | Two |
| Fuel Type | Natural Gas |
| Height | 42.5" |
| Width | 47" |
| Depth | 51" |
| Location | Outdoor |
| Resources | Goodman Brochure Goodman Installation Instructions Goodman Parts Manual Goodman Service Manual Goodman Specifications Goodman 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
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