Goodman · Furnaces
Goodman GR9S800805CU — 80,000 BTU/h
Goodman 80,000 Btu 80% Afue Single Stage Ultra Low-NOx Upflow Gas Furnace for use with R-32 or R-410A (Colorado & California AQMD's Only)(2,000 CFM)
Where it's listed
| Retailer | Listed price | |
|---|---|---|
| ACUnitsForLess | $2,255 | View → |
| TheACOutlet | $2,255 | View → |
Prices are public listings captured from HVAC e-commerce sources; some retailers gate the final price in cart (manufacturer minimum-advertised-price). Always confirm on the retailer's site. Links are affiliate-eligible.
Specifications
| Capacity (BTU/h) | 80,000 BTU/h |
Specs are decoded from the model number and retailer listings. Confirm against the manufacturer submittal sheet before purchase.
Efficiency & refrigerant
This unit uses R-32, a current low-GWP (A2L) refrigerant that meets the post-2025 EPA AIM Act standard — future-proof for serviceability. A2L refrigerants are mildly flammable, so above a charge threshold the system needs factory leak detection; a certified installer handles this.
Rebates & tax credits
Federal 25C tax credit (now expired for new installs). A qualifying natural-gas, propane, or oil furnace may have qualified for the federal 25C credit (up to $600) if it met the CEE highest-efficiency tier — within the $1,200 combined annual cap. Important: the federal 25C credit applied only to property placed in service on or before December 31, 2025 — under the One Big Beautiful Bill (Pub. L. 119-21), it does not apply to systems installed after that date. If you installed a qualifying system in 2023–2025, you may still be able to claim it on that year's return — and 2025 claims require the manufacturer's qualified-manufacturer (QM) code. Read the federal credit details at ENERGY STAR / IRS →
This is not tax advice. We do not know this exact model's certified efficiency rating, so we cannot say it qualifies for any specific amount. Eligibility depends on the installed system's AHRI-matched rating, your tax liability, and the home being your residence. Always confirm with your installer and a tax advisor.
Official documents
Find the manufacturer's submittal sheet, installation manual, owner's manual, and warranty for the Goodman GR9S800805CU:
Search Goodman literature for GR9S800805CU →
Documents are hosted by the manufacturer — TradeBench links to the official source and never re-hosts copyrighted manuals.
Matched systems (AHRI)
For ducted split systems, the rated efficiency only holds for AHRI-certified matched combinations of outdoor unit, coil, and air handler. Look up certified matches for this model in the official directory:
Find AHRI-certified matches for GR9S800805CU →
A retailer "system bundle" is not proof of an AHRI reference number. Verify the match in the AHRI Directory.
Before you buy or install
Furnace sizing follows a Manual J heat-loss calculation, not square-footage rules of thumb — an oversized furnace short-cycles and stresses the heat exchanger. Confirm fuel type (natural gas vs propane), orientation (upflow/downflow/horizontal), and that the blower matches the rest of the system. Gas furnaces require code-compliant venting, combustion air, and a permitted, professional installation; CO safety makes this not a DIY job.
Maintenance
Replace the air filter every 1–3 months, keep supply and return vents unblocked, and have a technician inspect the heat exchanger, burners, and venting before each heating season for safe combustion.