(800)865-5931 Mon-Fri 7am-7pm, Sat 9am-2pm CT Closed Memorial Day
EST. 2002
Home Air Products™
My Location: Ashburn, VA [Change]
Free Shipping See Details
No Sales Tax See Details
Enter your zip for personalized product and service recommendations.
Actual product may vary from photos.

Comfort-Aire GDD95A054B4XE

54,000 BTU Furnace, 95% Efficiency, 1-Stage Burner, 1,600 CFM Fixed Speed PSC, Dedicated Downflow Application

Have It Installed

Professional installation now available in Ashburn, VA!

  • Free online quotes
  • No home visit
Learn More
In Stock and Ready to Ship. (If ordered by 1 p.m. CST M-F, ships same day. All items on your order must be in stock for same-day shipping.)
This is a Downflow unit. Learn about Downflow
To use LP fuel, this unit requires an LP Conversion Kit. See Accessories

Two heat exchangers make this one of the most efficient furnaces on the market today. Using 95% or more of the heat output from each cubic foot of gas, this furnace produces not just greater comfort, but also significant fuel savings.

At only 34-1/2" in height, the furnace is ideal for renovations and replacements, fitting in virtually any space where a furnace was previously installed, including basements and utility closets.

The furnace comes assembled and prewired, with a color-coded wiring harness and quick connect fittings. An integrated control board simplifies hook-ups, and all components are easy to reach. Because of its small size, the furnace is easy to handle, fitting through doors, halls and stairways.

The blower compartment has a sealed insulated door, while a sealed vestibule reduces burner and inducer sound levels for clean, efficient, quiet combustion.

The primary and secondary heat exchangers are covered by a limited lifetime warranty; other components are covered for 12 years. (Limitations apply; see "Warranty" for details.)


  • Draft Inducer—Specifically designed for the tubular heat exchanger, it pulls hot combustion gases through the exchanger; heated air is locked in while cold air is locked out
  • In-shot Burner—Engineered to provide the most efficient air/gas mixture for combustion, the design requires no manual adjustments to regulate the mix
  • Primary Heat Exchanger—The patented tubular design is resistant to corrosion and thermal fatigue, and it is covered by a lifetime warranty
  • Secondary Heat Exchanger—Unique heat recovery coil extracts additional heat (which woud be lost by less efficient furnaces); stainless steel construction has a lifetime warranty
  • Hot Surface Ignition—Silicon nitride type igniter is quiet and automatic, eliminating the need for a standing pilot light
  • High Efficiency Blower—Three-speed blower delivers warm air throughout the house quietly and efficiently; direct drive system has no belts or pulleys to wear out
  • Integrated Furnace Control—Controls are integrated into one board for fast, easy installation; features on-board diagnostics with easy to recognize fault codes


Configuration is the direction the conditioned air will pass through the unit.

Upflow units will have the air come in from the bottom and blow out the top.

Horizontal units will have the air go through the unit left to right, or right to left.

Downflow units will have the air come in from the top of the unit, and blow out the bottom.

Unsure of what configuration your home needs? Call us at 800-865-5931. Monday through Friday, 8:30am to 5:00pm CST

Blower Cooling Capacity

The tonnage of air conditioning that can be moved effectively by the blower. You want to make sure that the blower is appropriately sized for the air conditioner. If it is too small the coil could ice up. If it is too large than the air coming out of the ducts won't be cold enough.

Blower Cooling Capacity
2 / 2.5 / 3 / 3.5 Tons
Maximum Input BTU

The maximum amount of heat that the unit can produce. The amount delivered into the space will be the input minus the efficiency loss also know as the output. For example a 100000 btu furnace at 80% efficiency will give you 80000 out btus of heat. The same size furnace at 95% will give you 95000 btus of heat.

Maximum Input BTU
54000 BTU
Maximum Heating Output BTU

The amount of heat, rated in British Thermal Units (BTUs), that the unit can deliver into the space. Not sure how many BTUs you need? Try our easy Equipment Sizing Estimator.

Maximum Heating Output BTU
51300 BTU
Maximum CFM

The maximum amount of air that the blower can push. Rated in Cubic feet per minute or CFM.

Maximum CFM
1477 @ 0.5
Blower Type

There are three main type of blowers: Multi-Speed, High-Efficiency Multi-Speed, and Variable Speed.

Standard Multi-Speed blowers have different speed options and you select the speed that the blower will operate at depending on the function it is performing (ex. different speeds for fan, AC, and heating functions).

High-Efficiency Multi-Speed blowers are designed to maintain a constant torque and in doing so will maintain air-flow and use less electricity.

Variable Speed blowers will adjust their speed during operation. The result is a blower that will run at lower speeds for longer periods of time (this improves the air flow and increases electrical efficiency).

Blower Type
Efficiency (% AFUE)

The percentage of energy converted into output by the unit. The remaining percentage is lost during the conversion process. The higher the efficiency, the lower the operational cost.

Efficiency (% AFUE)
95 %
Burner Stages

A single stage furnace has one heat setting. The furnace is either on at full capacity or it is off.

A two stage furnace has two different heat settings; one full capacity and a second lower heat setting. The advantage of a two stage furnace is that it extends the run time which does a better job distributing the air in your home. This helps improve your homes comfort level while reducing drafty areas.

A modulating furnace will heat on a low capacity until a call for high heat is sent to the furnace. Once a high heat call is initiated the furnace will slowly increase the burner level and blower speed over time, until reaching full capacity. The advantages are potentially reduced noise and better efficiency in some models. A modulating furnace should provide the best comfort level.

Burner Stages
Maximum Overcurrent Protection (Breaker)

The maximum capacity breaker in the building's circuit panel that can be used on the dedicated electrical line supplying the equipment.

Maximum Overcurrent Protection (Breaker)
15 Amps
Fuel Type
LP Capable (Kit Required) / Natural Gas
Vent Connection

The diameter of the vent connection on the furnace.

Vent Connection
3 Inches
Supply Air Opening Size

The dimensions of the opening that the air is discharged through. This is the section where you would attach the supply plenum.

Supply Air Opening Size
18 1/2 x 16 1/8 Inches
Product Weight
120 lbs
Shipping Weight
120 lbs
Meets CSA Standards

Canadian Standards Association

Meets CSA Standards
Meets Canadian OEE Standards

Standards established by Canada's Office of Energy Efficiency.

Meets Canadian OEE Standards
California Approved

LoNox feature meets State of California emissions requirements.

California Approved
17 1/2 Inches
28 Inches
34 1/2 Inches
115 Volts
60 Hz
Voltage Phase
Heat Exchanger Warranty
Parts Warranty
12 Year
*Any accessories purchased with the Comfort-Aire GDD95A054B4XE, are eligible for free shipping.
Accessory kit FINAL - less FR 22
Alpine Home Air Products KIT025

Furnace Installation Supplies Package - Basic KIT

$137.99 Qty:
Aquaguard Value Series w/Float Switch
AquaGuard AG-G30X62V (AG-4200)

30" x 62" Secondary Value Drain Pan with Float Switch

$84.99 Qty:
Diversitech CP-22

CP-22 Condensate Pump, 22ft. lift, 120V

$46.99 Qty:
Diversitech CP-22T

Condensate Pump, 22ft. lift, 120V, Includes 20ft. of Tubing

$52.99 Qty:
Rectorseal Safe-T-Switch
Rectorseal SS1

Safe-T-Switch® Primary and Secondary Drain Line Switch

$17.99 Qty:
Diversitech 800-008
Diversitech 800-008

Pro-Air Duct Sealant – 1/10 Gallon Tube – 10.5 oz.

$7.99 Qty:
Diversitech 800-009 1
Diversitech 800-009

Pro-Air Duct Sealant – 1 Gallon Pail

$43.99 Qty:
Hardcast CCWI-181

Duct Sealant - 1 Gallon

$42.99 Qty:
453072956-2 no background
Alpine FR-1620-DOWNFLOW

16 Inch x 20 Inch External Filter Rack, Opens on 20" Side

$19.99 Qty:
Product Image
Alpine FR-1625

16 Inch x 25 Inch External Filter Rack

$19.99 Qty:
8126x 1
Aprilaire 8126X

Digital Control Fresh Air Ventilation System

$164.99 Qty:
LPT-00A LP Conversion Kit
Comfort-Aire 905028

U.S. LP Conversion Kit (0 to 10,000 ft)

$46.99 Qty:

Nighthawk Plug-in Operated Carbon Monoxide Alarm w/ Digital Display

$42.99 Qty:

Battery Powered Combination Carbon Monoxide Alarm and Smoke Detector

$41.99 Qty:
Diversitech 640-UL25

Diversitech 640-UL25 Foil Tape

$24.99 Qty:
Product Image
Diversitech HDT303K

Deluxe Digital Thermometer

$22.99 Qty:
Get expert assistance from our team
Call our product specialists at 800-865-5931
Mon-Fri 7am-7pm, Sat 9am-2pm CT Closed Memorial Day
Please enter a message
Please use a valid email
Phone (optional)
Please use a valid phone number
Name (optional)
Please use a valid phone number