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Deal.ai › Goodman
Goodman
Goodman GD9S800804BN 80% Efficiency, Multi-speed ECM, Down-flow Multi-position Gas Furnace Heater

Goodman GD9S800804BN 80% Efficiency, Multi-speed ECM, Down-flow Multi-position Gas Furnace Heater

Best price now

$1,197.00at The AC OutletChecked 37 min ago

18% under what the other stores charge

Compared across 16 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $1,197.00 at The AC Outlet (checked Nov 14, 2026).
  • Checked at 16 stores.

Our take on the Goodman GD9S800804BN 80% Efficiency, Multi-speed ECM, Down-flow Multi-position Gas Furnace Heater

The Goodman GD9S80 is an 80% AFUE single-stage gas furnace with a multi-speed ECM blower, built for downflow and multi-position installations. Its heavy-duty aluminized-steel tubular heat exchanger uses wrinkle-bend technology for durability and heat transfer, and the unit is designed, engineered and assembled in the US. It suits budget-minded homeowners replacing an older 80% furnace or outfitting a basement, closet or crawlspace where a downflow layout fits. Against premium two-stage and 90%+ condensing furnaces it gives up efficiency and finer temperature control, but it keeps the install simple and the parts common.

Best forHomeowners replacing an aging 80% furnaceDownflow or basement and closet installationsBudget-focused heating upgradesBuyers who want common, serviceable parts
Pros
  • Multi-speed ECM blower runs at lower speeds for quieter, more even airflow
  • Heavy-duty aluminized-steel tubular heat exchanger with wrinkle-bend construction
  • Multi-position cabinet fits downflow and other layouts
  • Single-stage operation keeps controls and service simple
  • Designed, engineered and assembled in the US
Cons
  • 80% AFUE is below the 90%+ of condensing furnaces, so more heat goes up the flue
  • Single-stage burner runs at full output or off, with wider temperature swings
  • No variable-speed blower or two-stage modulation for finer comfort
  • Venting and installation still require a qualified HVAC contractor

Goodman GD9S800804BN 80% Efficiency, Multi-speed ECM, Down-flow Multi-position Gas Furnace Heater prices at every store

  • The AC OutletNew

    In stock

    $1,197.00Free shippingChecked 37 min ago
    Visit The AC Outlet
  • HVACDirect.comNew

    In stock

    $1,416.20Free shippingChecked 37 min ago
    Visit HVACDirect.com
  • SupplyHouse.comNew

    In stock

    $1,469.07Free shippingChecked 37 min ago
    Visit SupplyHouse.com
  • Heat and CoolNew

    In stock

    $1,470.00Free shippingChecked 37 min ago
    Visit Heat and Cool
  • Grainger Industrial SupplyNew

    In stock

    $1,326.00+ $230.69 shippingChecked 37 min ago
    Visit Grainger Industrial Supply
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $1,207.99Free shippingChecked 37 min ago
    Visit Amazon
  • ZoroNew

    Availability unknown

    $1,207.99Checked 37 min ago
    Visit Zoro
  • Skip The WarehouseNew

    Availability unknown

    $1,237.47Checked 37 min ago
    Visit Skip The Warehouse
  • Buy Comfort DirectNew

    Availability unknown

    $1,460.00Checked 37 min ago
    Visit Buy Comfort Direct
  • eBayNew

    Availability unknownSold by hvacdirectonline

    $1,460.00Checked 37 min ago
    Visit eBay
  • eFireplaceStore.comNew

    Availability unknown

    $1,460.00Checked 37 min ago
    Visit eFireplaceStore.com
  • Jackson Systems & SupplyNew

    Availability unknown

    $1,526.00Checked 37 min ago
    Visit Jackson Systems & Supply
  • acunitsforlessNew

    Availability unknown

    $1,526.00Checked 37 min ago
    Visit acunitsforless
  • AC DirectNew

    Availability unknown

    $1,527.22Checked 37 min ago
    Visit AC Direct
  • BudgetHeating.ComNew

    Availability unknown

    $1,555.00Checked 37 min ago
    Visit BudgetHeating.Com
  • National Air WarehouseNew

    Availability unknown

    $1,877.85Checked 37 min ago
    Visit National Air Warehouse

Also available at

  • HeatAndCool.comCheck price at HeatAndCool.com

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Goodman GD9S800804BN 80% Efficiency, Multi-speed ECM, Down-flow Multi-position Gas Furnace Heater price history

Lowest price we've seen: $1,197.00 on Nov 14 at The AC Outlet. Tracked across 16 stores since Nov 14.

About the Goodman GD9S800804BN 80% Efficiency, Multi-speed ECM, Down-flow Multi-position Gas Furnace Heater

This is a single-stage, multi-speed ECM gas furnace with an 80% AFUE rating. The GD9S80 model is a downflow, multi-position unit. It is designed, engineered and assembled in the United States.

The primary heat exchanger is a dual-diameter tubular design made of heavy-duty aluminized steel. Wrinkle-bend technology keeps the wall strength of the tubes and helps transfer heat efficiently. The heat exchanger is wrapped in foil-faced insulation.

The furnace has a single-stage gas valve, a hot-surface igniter and a single-speed draft inducer. A self-diagnostic control board and color-coded low-voltage terminals are included. The cabinet is heavy-gauge steel with a baked-enamel finish. Gas and electrical connections can be made on the left or right.

Model
GD9S800804BN
Brand
Goodman
Efficiency
80% AFUE
Stages
Single-stage
Blower motor
Multi-speed ECM
Installation
Downflow, horizontal left or right
Heat exchanger
Aluminized-steel, dual-diameter tubular, with wrinkle-bend technology
Gas valve
Single-stage
Igniter
Hot-surface
Draft inducer
Quiet, single-speed
Cabinet
Heavy-gauge steel with baked-enamel finish
Connections
Left or right gas and electrical connection
Certifications
AHRI Certified; ETL Listed
Emissions
California Low NOx models available
Restrictions
Cannot be installed in California's SCAQMD and SJVAPCD districts
Warranty
Lifetime limited heat exchanger warranty and 10-year limited parts warranty; online registration within 60 days of installation required (not required in California or Québec)
In the box
Indoor unit, installation manual, user's manual, manufacturer's warranty

Questions and answers

Is the GD9S80 a good furnace for a basement or closet?
Yes, if the ductwork runs down or the layout is multi-position. The cabinet is built for downflow and multi-position installs, which suits basements, closets and crawlspaces. Confirm the orientation with your contractor before ordering.
How efficient is it compared with a 90% furnace?
It is rated 80% AFUE, so roughly 20% of the fuel energy leaves through the flue. A 90%+ condensing furnace captures more heat but needs different venting and a drain for condensate.
What does the multi-speed ECM blower do for me?
It lets the blower run at lower speeds for gentler, more even airflow and less noise than a fixed-speed motor. It is not a variable-speed blower, so it steps between speeds rather than varying continuously.
Does it work with air conditioning?
Yes. The multi-speed ECM blower moves air for a matched cooling coil and outdoor unit, so it can serve as the air handler for a full heating and cooling system.
What is in the box?
The furnace cabinet and its factory-installed components. Venting, ductwork, the thermostat, the gas line and the condensate parts for cooling are supplied separately by the installer.
How does it compare with Goodman's two-stage models?
A two-stage model runs at a lower output most of the time for steadier temperatures and less cycling. The GD9S80 is single-stage, so it is simpler and less expensive to service but less refined in comfort.
Where is the Goodman GD9S800804BN 80% Efficiency, Multi-speed ECM, Down-flow Multi-position Gas Furnace Heater cheapest?
At The AC Outlet, for $1,197.00, 18% under what the other stores charge, as of our latest check.
Where can I buy the Goodman GD9S800804BN 80% Efficiency, Multi-speed ECM, Down-flow Multi-position Gas Furnace Heater?
16 stores we checked sell it, including Amazon, The AC Outlet, Zoro, Skip The Warehouse, Grainger Industrial Supply.

Stores we've priced the Goodman GD9S800804BN 80% Efficiency, Multi-speed ECM, Down-flow Multi-position Gas Furnace Heater at

  • Grainger Industrial Supply deals and prices
  • Zoro deals and prices

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